Articles | Volume 18, issue 18
https://doi.org/10.5194/bg-18-5163-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-5163-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Sep 2021
Research article |
| 22 Sep 2021
| 22 Sep 2021
Spatial patterns of aboveground phytogenic Si stocks in a grass-dominated catchment – results from UAS-based high-resolution remote sensing
Marc Wehrhan
CORRESPONDING AUTHOR
Leibniz Centre for Agricultural Landscape Research (ZALF),
“Landscape Pedology” Working Group, 15374 Müncheberg, Germany
Daniel Puppe
Leibniz Centre for Agricultural Landscape Research (ZALF), “Silicon
Biogeochemistry” Working Group, 15374 Müncheberg, Germany
Danuta Kaczorek
Leibniz Centre for Agricultural Landscape Research (ZALF),
“Landscape Pedology” Working Group, 15374 Müncheberg, Germany
Department of Soil
Environment Sciences, Warsaw University of Life Sciences (SGGW), 02-776 Warsaw, Poland
Michael Sommer
Leibniz Centre for Agricultural Landscape Research (ZALF),
“Landscape Pedology” Working Group, 15374 Müncheberg, Germany
Leibniz Centre for Agricultural Landscape Research (ZALF), “Silicon
Biogeochemistry” Working Group, 15374 Müncheberg, Germany
Institute of Geography and Environmental
Science, University of Potsdam, 14476 Potsdam, Germany
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Luis Alfredo Pires Barbosa, Martin Leue, Marc Wehrhan, and Michael Sommer
EGUsphere, https://doi.org/10.5194/egusphere-2025-746, https://doi.org/10.5194/egusphere-2025-746, 2025
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Healthy soils need plant biomass, especially roots, to function properly. Our study examined how different wheat varieties and soil erosion impact root growth and carbon storage. We found that tillage erosion significantly reduced total wheat biomass, while newer wheat varieties produced more grain but contributed less carbon to the soil. Simulations showed that modern varieties are more sensitive to dry conditions, highlighting a trade-off between higher yields and long-term soil health.
Daniel Puppe, Axel Höhn, Danuta Kaczorek, Manfred Wanner, Marc Wehrhan, and Michael Sommer
Biogeosciences, 14, 5239–5252, https://doi.org/10.5194/bg-14-5239-2017, https://doi.org/10.5194/bg-14-5239-2017, 2017
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We quantified different biogenic Si pools in soils of a developing ecosystem and analyzed their influence on short-term changes of the water soluble Si fraction. From our results we concluded small (< 5 µm) and/or fragile phytogenic Si structures to have the biggest impact on short-term changes of water soluble Si. Analyses of these phytogenic Si structures are urgently needed in future as they seem to represent the most important driver of Si cycling in terrestrial biogeosystems in general.
Luis Alfredo Pires Barbosa, Martin Leue, Marc Wehrhan, and Michael Sommer
EGUsphere, https://doi.org/10.5194/egusphere-2025-746, https://doi.org/10.5194/egusphere-2025-746, 2025
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Healthy soils need plant biomass, especially roots, to function properly. Our study examined how different wheat varieties and soil erosion impact root growth and carbon storage. We found that tillage erosion significantly reduced total wheat biomass, while newer wheat varieties produced more grain but contributed less carbon to the soil. Simulations showed that modern varieties are more sensitive to dry conditions, highlighting a trade-off between higher yields and long-term soil health.
Adrian Dahlmann, Mathias Hoffmann, Gernot Verch, Marten Schmidt, Michael Sommer, Jürgen Augustin, and Maren Dubbert
Hydrol. Earth Syst. Sci., 27, 3851–3873, https://doi.org/10.5194/hess-27-3851-2023, https://doi.org/10.5194/hess-27-3851-2023, 2023
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Evapotranspiration (ET) plays a pivotal role in terrestrial water cycling, returning up to 90 % of precipitation to the atmosphere. We studied impacts of soil type and management on an agroecosystem using an automated system with modern modeling approaches. We modeled ET at high spatial and temporal resolution to highlight differences in heterogeneous soils on an hourly basis. Our results show significant differences in yield and smaller differences in ET overall, impacting water use efficiency.
Peter Stimmler, Mathias Goeckede, Bo Elberling, Susan Natali, Peter Kuhry, Nia Perron, Fabrice Lacroix, Gustaf Hugelius, Oliver Sonnentag, Jens Strauss, Christina Minions, Michael Sommer, and Jörg Schaller
Earth Syst. Sci. Data, 15, 1059–1075, https://doi.org/10.5194/essd-15-1059-2023, https://doi.org/10.5194/essd-15-1059-2023, 2023
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Arctic soils store large amounts of carbon and nutrients. The availability of nutrients, such as silicon, calcium, iron, aluminum, phosphorus, and amorphous silica, is crucial to understand future carbon fluxes in the Arctic. Here, we provide, for the first time, a unique dataset of the availability of the abovementioned nutrients for the different soil layers, including the currently frozen permafrost layer. We relate these data to several geographical and geological parameters.
Daniel A. Frick, Rainer Remus, Michael Sommer, Jürgen Augustin, Danuta Kaczorek, and Friedhelm von Blanckenburg
Biogeosciences, 17, 6475–6490, https://doi.org/10.5194/bg-17-6475-2020, https://doi.org/10.5194/bg-17-6475-2020, 2020
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Silicon is taken up by some plants to increase structural stability and to develop stress resistance and is rejected by others. To explore the underlying mechanisms, we used the stable isotopes of silicon that shift in their relative abundance depending on the biochemical transformation involved. On species with a rejective (tomato, mustard) and active (wheat) uptake mechanism, grown in hydroculture, we found that the transport of silicic acid is controlled by the precipitation of biogenic opal.
Florian Wilken, Michael Ketterer, Sylvia Koszinski, Michael Sommer, and Peter Fiener
SOIL, 6, 549–564, https://doi.org/10.5194/soil-6-549-2020, https://doi.org/10.5194/soil-6-549-2020, 2020
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Soil redistribution by water and tillage erosion processes on arable land is a major threat to sustainable use of soil resources. We unravel the role of tillage and water erosion from fallout radionuclide (239+240Pu) activities in a ground moraine landscape. Our results show that tillage erosion dominates soil redistribution processes and has a major impact on the hydrological and sedimentological connectivity, which started before the onset of highly mechanised farming since the 1960s.
W. Marijn van der Meij, Arnaud J. A. M. Temme, Jakob Wallinga, and Michael Sommer
SOIL, 6, 337–358, https://doi.org/10.5194/soil-6-337-2020, https://doi.org/10.5194/soil-6-337-2020, 2020
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We developed a model to simulate long-term development of soils and landscapes under varying rainfall and land-use conditions to quantify the temporal variation of soil patterns. In natural landscapes, rainfall amount was the dominant factor influencing soil variation, while for agricultural landscapes, landscape position became the dominant factor due to tillage erosion. Our model shows potential for simulating past and future developments of soils in various landscapes and climates.
Jannis Groh, Jan Vanderborght, Thomas Pütz, Hans-Jörg Vogel, Ralf Gründling, Holger Rupp, Mehdi Rahmati, Michael Sommer, Harry Vereecken, and Horst H. Gerke
Hydrol. Earth Syst. Sci., 24, 1211–1225, https://doi.org/10.5194/hess-24-1211-2020, https://doi.org/10.5194/hess-24-1211-2020, 2020
Daniel Puppe, Axel Höhn, Danuta Kaczorek, Manfred Wanner, Marc Wehrhan, and Michael Sommer
Biogeosciences, 14, 5239–5252, https://doi.org/10.5194/bg-14-5239-2017, https://doi.org/10.5194/bg-14-5239-2017, 2017
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We quantified different biogenic Si pools in soils of a developing ecosystem and analyzed their influence on short-term changes of the water soluble Si fraction. From our results we concluded small (< 5 µm) and/or fragile phytogenic Si structures to have the biggest impact on short-term changes of water soluble Si. Analyses of these phytogenic Si structures are urgently needed in future as they seem to represent the most important driver of Si cycling in terrestrial biogeosystems in general.
Mathias Hoffmann, Nicole Jurisch, Juana Garcia Alba, Elisa Albiac Borraz, Marten Schmidt, Vytas Huth, Helmut Rogasik, Helene Rieckh, Gernot Verch, Michael Sommer, and Jürgen Augustin
Biogeosciences, 14, 1003–1019, https://doi.org/10.5194/bg-14-1003-2017, https://doi.org/10.5194/bg-14-1003-2017, 2017
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We present a suitable and reliable method to detect short-term and small-scale soil organic carbon stock dynamics (ΔSOC). Spatiotemporal dynamics of ΔSOC are determined for a 5-year study period at the experimental field trial
CarboZALFusing automatic chamber measurements of NEE and modeled NPPshoot. Results were compared against ΔSOC observed from repeated soil inventories. Both ∆SOC data sets corresponded well regarding their magnitude and spatial tendency.
Mathias Hoffmann, Maximilian Schulz-Hanke, Juana Garcia Alba, Nicole Jurisch, Ulrike Hagemann, Torsten Sachs, Michael Sommer, and Jürgen Augustin
Atmos. Meas. Tech., 10, 109–118, https://doi.org/10.5194/amt-10-109-2017, https://doi.org/10.5194/amt-10-109-2017, 2017
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Processes driving production and transport of CH4 in wetlands are complex. We present an algorithm to separate open-water automatic chamber CH4 fluxes into diffusion and ebullition. This helps to reveal dynamics, identify drivers and obtain reliable CH4 emissions. The algorithm is based on sudden concentration changes during single measurements. A variable filter is applied using a multiple of the interquartile range. The algorithm was verified for data of a rewetted former fen grassland site.
W. Marijn van der Meij, Arnaud J. A. M. Temme, Christian M. F. J. J. de Kleijn, Tony Reimann, Gerard B. M. Heuvelink, Zbigniew Zwoliński, Grzegorz Rachlewicz, Krzysztof Rymer, and Michael Sommer
SOIL, 2, 221–240, https://doi.org/10.5194/soil-2-221-2016, https://doi.org/10.5194/soil-2-221-2016, 2016
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This study combined fieldwork, geochronology and modelling to get a better understanding of Arctic soil development on a landscape scale. Main processes are aeolian deposition, physical and chemical weathering and silt translocation. Discrepancies between model results and field observations showed that soil and landscape development is not as straightforward as we hypothesized. Interactions between landscape processes and soil processes have resulted in a complex soil pattern in the landscape.
M. Hoffmann, M. Schulz-Hanke, J. Garcia Alba, N. Jurisch, U. Hagemann, T. Sachs, M. Sommer, and J. Augustin
Biogeosciences Discuss., https://doi.org/10.5194/bgd-12-12923-2015, https://doi.org/10.5194/bgd-12-12923-2015, 2015
Manuscript not accepted for further review
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Processes driving the production, transformation and transport of CH4 in wetlands are highly complex. Thus, serious challenges are constitutes in terms of process understanding, potential drivers and the calculation of reliable CH4 emission estimates. We present a simple calculation algorithm to separate CH4 fluxes measured with closed chambers into diffusion- and ebullition-derived components, which helps facilitating the identification of underlying dynamics and potential drivers.
M. Pohl, M. Hoffmann, U. Hagemann, M. Giebels, E. Albiac Borraz, M. Sommer, and J. Augustin
Biogeosciences, 12, 2737–2752, https://doi.org/10.5194/bg-12-2737-2015, https://doi.org/10.5194/bg-12-2737-2015, 2015
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Dynamic SOC and N stocks in the aerobic zone play a key role in the regulation of plant- and microbially mediated CO2 and CH4 fluxes in drained and cultivated fen peatlands. Their interaction with the groundwater level (GWL) strongly influenced soil C gas exchange, indicating effects of GWL-dependent N availability on C formation and transformation processes in the plant--soil system. In contrast, static SOC and N stocks showed no significant effect on C gas fluxes.
B. A. Miller, S. Koszinski, M. Wehrhan, and M. Sommer
SOIL, 1, 217–233, https://doi.org/10.5194/soil-1-217-2015, https://doi.org/10.5194/soil-1-217-2015, 2015
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There are many different strategies for mapping SOC, among which is to model the variables needed to calculate the SOC stock indirectly or to model the SOC stock directly. The purpose of this research was to compare these two approaches for mapping SOC stocks from multiple linear regression models applied at the landscape scale via spatial association. Although the indirect approach had greater spatial variation and higher R2 values, the direct approach had a lower total estimated error.
J. Leifeld, C. Bader, E. Borraz, M. Hoffmann, M. Giebels, M. Sommer, and J. Augustin
Biogeosciences Discuss., https://doi.org/10.5194/bgd-11-12341-2014, https://doi.org/10.5194/bgd-11-12341-2014, 2014
Revised manuscript not accepted
M. Sommer, H. Jochheim, A. Höhn, J. Breuer, Z. Zagorski, J. Busse, D. Barkusky, K. Meier, D. Puppe, M. Wanner, and D. Kaczorek
Biogeosciences, 10, 4991–5007, https://doi.org/10.5194/bg-10-4991-2013, https://doi.org/10.5194/bg-10-4991-2013, 2013
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Melih Öztürk, Turgay Biricik, and Rıdvan Koruyan
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Oriental plane LAI values have changed with definite pattern compatible with phenological periods. Air-soil temperatures were significantly definitive on course of mean LAI particularly during foliation. However, tree height and DBH were not significantly correlated with point-based maximum LAIs. Point-based mean LAI increased from 0.80 m2 m-2 to 2.76 m2 m-2 during foliation period. Mean tree height and DBH for point-based canopies ranged between 17.0–26.7 m and 26.5–38.2 cm respectively.
Simon Scheiter, Sophie Wolf, and Teja Kattenborn
Biogeosciences, 21, 4909–4926, https://doi.org/10.5194/bg-21-4909-2024, https://doi.org/10.5194/bg-21-4909-2024, 2024
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Biomes are widely used to map vegetation patterns at large spatial scales and to assess impacts of climate change, yet there is no consensus on a generally valid biome classification scheme. We used crowd-sourced species distribution data and trait data to assess whether trait information is suitable for delimiting biomes. Although the trait data were heterogeneous and had large gaps with respect to the spatial distribution, we found that a global trait-based biome classification was possible.
Cheng-Hsien Lin, Colleen Zumpf, Chunhwa Jang, Thomas Voigt, Guanglong Tian, Olawale Oladeji, Albert Cox, Rehnuma Mehzabin, and DoKyoung Lee
Biogeosciences, 21, 4765–4784, https://doi.org/10.5194/bg-21-4765-2024, https://doi.org/10.5194/bg-21-4765-2024, 2024
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Biogeosciences, 21, 4169–4193, https://doi.org/10.5194/bg-21-4169-2024, https://doi.org/10.5194/bg-21-4169-2024, 2024
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Through an extensive global dataset of leaf nutrient resorption and a multifactorial analysis, we show that the majority of spatial variation in nutrient resorption may be driven by leaf habit and type, with thicker, longer-lived leaves having lower resorption efficiencies. Climate, soil fertility and soil-related factors emerge as strong drivers with an additional effect on its role. These results are essential for comprehending plant nutrient status, plant productivity and nutrient cycling.
Cecilia M. Prada, Katherine D. Heineman, Maria J. Pardo, Camille Piponiot, and James W. Dalling
EGUsphere, https://doi.org/10.5194/egusphere-2024-2738, https://doi.org/10.5194/egusphere-2024-2738, 2024
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The influence of elevation and soil nutrient availability on carbon stocks has not been evaluated for ectomycorrhizal forests in the tropics. In western Panama we calculated C pools in ten plots in an elevational gradient varying in relative abundance of EM-trees. We found exceptionally high aboveground soil C in high elevation EM-forest, in contrast to arbuscular mycorrhizal-dominated Andean forests.
Friedrich J. Bohn, Ana Bastos, Romina Martin, Anja Rammig, Niak Sian Koh, Giles B. Sioen, Bram Buscher, Louise Carver, Fabrice DeClerck, Moritz Drupp, Robert Fletcher, Matthew Forrest, Alexandros Gasparatos, Alex Godoy-Faúndez, Gregor Hagedorn, Martin Hänsel, Jessica Hetzer, Thomas Hickler, Cornelia B. Krug, Stasja Koot, Xiuzhen Li, Amy Luers, Shelby Matevich, H. Damon Matthews, Ina C. Meier, Awaz Mohamed, Sungmin O, David Obura, Ben Orlove, Rene Orth, Laura Pereira, Markus Reichstein, Lerato Thakholi, Peter Verburg, and Yuki Yoshida
EGUsphere, https://doi.org/10.5194/egusphere-2024-2551, https://doi.org/10.5194/egusphere-2024-2551, 2024
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An interdisciplinary collaboration of 35 international researchers from 34 institutions highlighting nine recent findings in biosphere research. Within these themes, they discuss issues arising from climate change and other anthropogenic stressors, and highlight the co-benefits of nature-based solutions and ecosystem services. They discuss recent findings in the context of global trade and international policy frameworks, and highlight lessons for local implementation of nature-based solutions.
Mingjie Shi, Nate McDowell, Huilin Huang, Faria Zahura, Lingcheng Li, and Xingyuan Chen
EGUsphere, https://doi.org/10.22541/au.171053013.30286044/v2, https://doi.org/10.22541/au.171053013.30286044/v2, 2024
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Using Moderate Resolution Imaging Spectroradiometer data products, we quantitatively estimate the resistance and resilience of ecosystem functions to wildfires that occurred in the Columbia River Basin in 2015. Carbon state exhibits lower resistance and resilience than the ecosystem fluxes. The random forest feature importance analysis indicates that burn severity plays a minor role in the resilience of grassland, while it has a relatively major role in the resilience of forest and savanna.
Madeleine-Zoé Corbeil-Robitaille, Éliane Duchesne, Daniel Fortier, Christophe Kinnard, and Joël Bêty
Biogeosciences, 21, 3401–3423, https://doi.org/10.5194/bg-21-3401-2024, https://doi.org/10.5194/bg-21-3401-2024, 2024
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In the Arctic tundra, climate change is transforming the landscape, and this may impact wildlife. We focus on three nesting bird species and the islets they select as refuges from their main predator, the Arctic fox. A geomorphological process, ice-wedge polygon degradation, was found to play a key role in creating these refuges. This process is likely to affect predator–prey dynamics in the Arctic tundra, highlighting the connections between nature's physical and ecological systems.
Samuel M. Fischer, Xugao Wang, and Andreas Huth
Biogeosciences, 21, 3305–3319, https://doi.org/10.5194/bg-21-3305-2024, https://doi.org/10.5194/bg-21-3305-2024, 2024
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Understanding the drivers of forest productivity is key for accurately assessing forests’ role in the global carbon cycle. Yet, despite significant research effort, it is not fully understood how the productivity of a forest can be deduced from its stand structure. We suggest tackling this problem by identifying the share and structure of immature trees within forests and show that this approach could significantly improve estimates of forests’ net productivity and carbon uptake.
Mery Ingrid Guimarães de Alencar, Rafael D. Guariento, Bertrand Guenet, Luciana S. Carneiro, Eduardo L. Voigt, and Adriano Caliman
Biogeosciences, 21, 3165–3182, https://doi.org/10.5194/bg-21-3165-2024, https://doi.org/10.5194/bg-21-3165-2024, 2024
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Flowers are ephemeral organs for reproduction, and their litter is functionally different from leaf litter. Flowers can affect decomposition and interact with leaf litter, influencing decomposition non-additively. We show that mixing flower and leaf litter from the Tabebuia aurea tree creates reciprocal synergistic effects on decomposition in both terrestrial and aquatic environments. We highlight that flower litter input can generate biogeochemical hotspots in terrestrial ecosystems.
Salim Soltani, Olga Ferlian, Nico Eisenhauer, Hannes Feilhauer, and Teja Kattenborn
Biogeosciences, 21, 2909–2935, https://doi.org/10.5194/bg-21-2909-2024, https://doi.org/10.5194/bg-21-2909-2024, 2024
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In this research, we developed a novel method using citizen science data as alternative training data for computer vision models to map plant species in unoccupied aerial vehicle (UAV) images. We use citizen science plant photographs to train models and apply them to UAV images. We tested our approach on UAV images of a test site with 10 different tree species, yielding accurate results. This research shows the potential of citizen science data to advance our ability to monitor plant species.
Xue Feng, Ruzhen Wang, Tianpeng Li, Jiangping Cai, Heyong Liu, Hui Li, and Yong Jiang
Biogeosciences, 21, 2641–2653, https://doi.org/10.5194/bg-21-2641-2024, https://doi.org/10.5194/bg-21-2641-2024, 2024
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Plant functional traits have been considered as reflecting adaptations to environmental variations, indirectly affecting ecosystem productivity. How soil acidification affects above- and belowground biomass by altering leaf and root traits remains poorly understood. We found divergent trait responses driven by soil environmental conditions in two dominant species, resulting in a decrease in aboveground biomass and an increase in belowground biomass.
Minhua Zhang, Xiaoqing Hu, and Fangliang He
Biogeosciences, 21, 2133–2142, https://doi.org/10.5194/bg-21-2133-2024, https://doi.org/10.5194/bg-21-2133-2024, 2024
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Plant sexual systems are important to understanding the evolution and maintenance of plant diversity. We quantified region effects on their proportions while incorporating local climate factors and evolutionary history. We found regional processes and climate effects both play important roles in shaping the geographic distribution of sexual systems, providing a baseline for predicting future changes in forest communities in the context of global change.
Christian H. Mohr, Michael Dietze, Violeta Tolorza, Erwin Gonzalez, Benjamin Sotomayor, Andres Iroume, Sten Gilfert, and Frieder Tautz
Biogeosciences, 21, 1583–1599, https://doi.org/10.5194/bg-21-1583-2024, https://doi.org/10.5194/bg-21-1583-2024, 2024
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Coastal temperate rainforests, among Earth’s carbon richest biomes, are systematically underrepresented in the global network of critical zone observatories (CZOs). Introducing here a first CZO in the heart of the Patagonian rainforest, Chile, we investigate carbon sink functioning, biota-driven landscape evolution, fluxes of matter and energy, and disturbance regimes. We invite the community to join us in cross-disciplinary collaboration to advance science in this particular environment.
Jorge F. Perez-Quezada, David Trejo, Javier Lopatin, David Aguilera, Bruce Osborne, Mauricio Galleguillos, Luca Zattera, Juan L. Celis-Diez, and Juan J. Armesto
Biogeosciences, 21, 1371–1389, https://doi.org/10.5194/bg-21-1371-2024, https://doi.org/10.5194/bg-21-1371-2024, 2024
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For 8 years we sampled a temperate rainforest and a peatland in Chile to estimate their efficiency to capture carbon per unit of water lost. The efficiency is more related to the water lost than to the carbon captured and is mainly driven by evaporation instead of transpiration. This is the first report from southern South America and highlights that ecosystems might behave differently in this area, likely explained by the high annual precipitation (~ 2100 mm) and light-limited conditions.
Fredrik Lagergren, Robert G. Björk, Camilla Andersson, Danijel Belušić, Mats P. Björkman, Erik Kjellström, Petter Lind, David Lindstedt, Tinja Olenius, Håkan Pleijel, Gunhild Rosqvist, and Paul A. Miller
Biogeosciences, 21, 1093–1116, https://doi.org/10.5194/bg-21-1093-2024, https://doi.org/10.5194/bg-21-1093-2024, 2024
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The Fennoscandian boreal and mountain regions harbour a wide range of ecosystems sensitive to climate change. A new, highly resolved high-emission climate scenario enabled modelling of the vegetation development in this region at high resolution for the 21st century. The results show dramatic south to north and low- to high-altitude shifts of vegetation zones, especially for the open tundra environments, which will have large implications for nature conservation, reindeer husbandry and forestry.
Florian Zellweger, Eric Sulmoni, Johanna T. Malle, Andri Baltensweiler, Tobias Jonas, Niklaus E. Zimmermann, Christian Ginzler, Dirk Nikolaus Karger, Pieter De Frenne, David Frey, and Clare Webster
Biogeosciences, 21, 605–623, https://doi.org/10.5194/bg-21-605-2024, https://doi.org/10.5194/bg-21-605-2024, 2024
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The microclimatic conditions experienced by organisms living close to the ground are not well represented in currently used climate datasets derived from weather stations. Therefore, we measured and mapped ground microclimate temperatures at 10 m spatial resolution across Switzerland using a novel radiation model. Our results reveal a high variability in microclimates across different habitats and will help to better understand climate and land use impacts on biodiversity and ecosystems.
Andrew Kulmatiski, Martin C. Holdrege, Cristina Chirvasă, and Karen H. Beard
Biogeosciences, 21, 131–143, https://doi.org/10.5194/bg-21-131-2024, https://doi.org/10.5194/bg-21-131-2024, 2024
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Warmer air and larger precipitation events are changing the way water moves through the soil and into plants. Here we show that detailed descriptions of root distributions can predict plant growth responses to changing precipitation patterns. Shrubs and forbs increased growth, while grasses showed no response to increased precipitation intensity, and these responses were predicted by plant rooting distributions.
Bonaventure Ntirugulirwa, Etienne Zibera, Nkuba Epaphrodite, Aloysie Manishimwe, Donat Nsabimana, Johan Uddling, and Göran Wallin
Biogeosciences, 20, 5125–5149, https://doi.org/10.5194/bg-20-5125-2023, https://doi.org/10.5194/bg-20-5125-2023, 2023
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Twenty tropical tree species native to Africa were planted along an elevation gradient (1100 m, 5.4 °C difference). We found that early-successional (ES) species, especially from lower elevations, grew faster at warmer sites, while several of the late-successional (LS) species, especially from higher elevations, did not respond or grew slower. Moreover, a warmer climate increased tree mortality in LS species, but not much in ES species.
Philippe Choler
Biogeosciences, 20, 4259–4272, https://doi.org/10.5194/bg-20-4259-2023, https://doi.org/10.5194/bg-20-4259-2023, 2023
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The year 2022 was unique in that the summer heat wave and drought led to a widespread reduction in vegetation growth at high elevation in the European Alps. This impact was unprecedented in the southwestern, warm, and dry part of the Alps. Over the last 2 decades, water has become a co-dominant control of vegetation activity in areas that were, so far, primarily controlled by temperature, and the growth of mountain grasslands has become increasingly sensitive to moisture availability.
Adriana Simonetti, Raquel Fernandes Araujo, Carlos Henrique Souza Celes, Flávia Ranara da Silva e Silva, Joaquim dos Santos, Niro Higuchi, Susan Trumbore, and Daniel Magnabosco Marra
Biogeosciences, 20, 3651–3666, https://doi.org/10.5194/bg-20-3651-2023, https://doi.org/10.5194/bg-20-3651-2023, 2023
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We combined 2 years of monthly drone-acquired RGB (red–green–blue) imagery with field surveys in a central Amazon forest. Our results indicate that small gaps associated with branch fall were the most frequent. Biomass losses were partially controlled by gap area, with branch fall and snapping contributing the least and greatest relative values, respectively. Our study highlights the potential of drone images for monitoring canopy dynamics in dense tropical forests.
Silvia Caldararu, Victor Rolo, Benjamin D. Stocker, Teresa E. Gimeno, and Richard Nair
Biogeosciences, 20, 3637–3649, https://doi.org/10.5194/bg-20-3637-2023, https://doi.org/10.5194/bg-20-3637-2023, 2023
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Ecosystem manipulative experiments are large experiments in real ecosystems. They include processes such as species interactions and weather that would be omitted in more controlled settings. They offer a high level of realism but are underused in combination with vegetation models used to predict the response of ecosystems to global change. We propose a workflow using models and ecosystem experiments together, taking advantage of the benefits of both tools for Earth system understanding.
Katharina Ramskogler, Bettina Knoflach, Bernhard Elsner, Brigitta Erschbamer, Florian Haas, Tobias Heckmann, Florentin Hofmeister, Livia Piermattei, Camillo Ressl, Svenja Trautmann, Michael H. Wimmer, Clemens Geitner, Johann Stötter, and Erich Tasser
Biogeosciences, 20, 2919–2939, https://doi.org/10.5194/bg-20-2919-2023, https://doi.org/10.5194/bg-20-2919-2023, 2023
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Primary succession in proglacial areas depends on complex driving forces. To concretise the complex effects and interaction processes, 39 known explanatory variables assigned to seven spheres were analysed via principal component analysis and generalised additive models. Key results show that in addition to time- and elevation-dependent factors, also disturbances alter vegetation development. The results are useful for debates on vegetation development in a warming climate.
Zijing Li, Zhiyong Li, Xuze Tong, Lei Dong, Ying Zheng, Jinghui Zhang, Bailing Miao, Lixin Wang, Liqing Zhao, Lu Wen, Guodong Han, Frank Yonghong Li, and Cunzhu Liang
Biogeosciences, 20, 2869–2882, https://doi.org/10.5194/bg-20-2869-2023, https://doi.org/10.5194/bg-20-2869-2023, 2023
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We used random forest models and structural equation models to assess the relative importance of the present climate and paleoclimate as determinants of diversity and aboveground biomass. Results showed that paleoclimate changes and modern climate jointly determined contemporary biodiversity patterns, while community biomass was mainly affected by modern climate. These findings suggest that contemporary biodiversity patterns may be affected by processes at divergent temporal scales.
William Rupert Moore Flynn, Harry Jon Foord Owen, Stuart William David Grieve, and Emily Rebecca Lines
Biogeosciences, 20, 2769–2784, https://doi.org/10.5194/bg-20-2769-2023, https://doi.org/10.5194/bg-20-2769-2023, 2023
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Quantifying vegetation indices is crucial for ecosystem monitoring and modelling. Terrestrial laser scanning (TLS) has potential to accurately measure vegetation indices, but multiple methods exist, with little consensus on best practice. We compare three methods and extract wood-to-plant ratio, a metric used to correct for wood in leaf indices. We show corrective metrics vary with tree structure and variation among methods, highlighting the value of TLS data and importance of rigorous testing.
Haiyang Shi, Geping Luo, Olaf Hellwich, Alishir Kurban, Philippe De Maeyer, and Tim Van de Voorde
Biogeosciences, 20, 2727–2741, https://doi.org/10.5194/bg-20-2727-2023, https://doi.org/10.5194/bg-20-2727-2023, 2023
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In studies on the relationship between ecosystem functions and climate and plant traits, previously used data-driven methods such as multiple regression and random forest may be inadequate for representing causality due to limitations such as covariance between variables. Based on FLUXNET site data, we used a causal graphical model to revisit the control of climate and vegetation traits over ecosystem functions.
Josué Delgado-Balbuena, Henry W. Loescher, Carlos A. Aguirre-Gutiérrez, Teresa Alfaro-Reyna, Luis F. Pineda-Martínez, Rodrigo Vargas, and Tulio Arredondo
Biogeosciences, 20, 2369–2385, https://doi.org/10.5194/bg-20-2369-2023, https://doi.org/10.5194/bg-20-2369-2023, 2023
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In the semiarid grassland, an increase in soil moisture at shallow depths instantly enhances carbon release through respiration. In contrast, deeper soil water controls plant carbon uptake but with a delay of several days. Previous soil conditions, biological activity, and the size and timing of precipitation are factors that determine the amount of carbon released into the atmosphere. Thus, future changes in precipitation patterns could convert ecosystems from carbon sinks to carbon sources.
German Vargas Gutiérrez, Daniel Pérez-Aviles, Nanette Raczka, Damaris Pereira-Arias, Julián Tijerín-Triviño, L. David Pereira-Arias, David Medvigy, Bonnie G. Waring, Ember Morrisey, Edward Brzostek, and Jennifer S. Powers
Biogeosciences, 20, 2143–2160, https://doi.org/10.5194/bg-20-2143-2023, https://doi.org/10.5194/bg-20-2143-2023, 2023
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To study whether nutrient availability controls tropical dry forest responses to reductions in soil moisture, we established the first troughfall exclusion experiment in a tropical dry forest plantation system crossed with a fertilization scheme. We found that the effects of fertilization on net primary productivity are larger than the effects of a ~15 % reduction in soil moisture, although in many cases we observed an interaction between drought and nutrient additions, suggesting colimitation.
Alina Lucia Ludat and Simon Kübler
Biogeosciences, 20, 1991–2012, https://doi.org/10.5194/bg-20-1991-2023, https://doi.org/10.5194/bg-20-1991-2023, 2023
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Satellite-based analysis illustrates the impact of geological processes for the stability of the ecosystem in the Mara River basin (Kenya/Tanzania). Newly detected fault activity influences the course of river networks and modifies erosion–deposition patterns. Tectonic surface features and variations in rock chemistry lead to localized enhancement of clay and soil moisture values and seasonally stabilised vegetation growth patterns in this climatically vulnerable region.
Erica Jaakkola, Antje Gärtner, Anna Maria Jönsson, Karl Ljung, Per-Ola Olsson, and Thomas Holst
Biogeosciences, 20, 803–826, https://doi.org/10.5194/bg-20-803-2023, https://doi.org/10.5194/bg-20-803-2023, 2023
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Increased spruce bark beetle outbreaks were recently seen in Sweden. When Norway spruce trees are attacked, they increase their production of VOCs, attempting to kill the beetles. We provide new insights into how the Norway spruce act when infested and found the emitted volatiles to increase up to 700 times and saw a change in compound blend. We estimate that the 2020 bark beetle outbreak in Sweden could have increased the total monoterpene emissions from the forest by more than 10 %.
Georg Wohlfahrt, Albin Hammerle, Felix M. Spielmann, Florian Kitz, and Chuixiang Yi
Biogeosciences, 20, 589–596, https://doi.org/10.5194/bg-20-589-2023, https://doi.org/10.5194/bg-20-589-2023, 2023
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The trace gas carbonyl sulfide (COS), which is taken up by plant leaves in a process very similar to photosynthesis, is thought to be a promising proxy for the gross uptake of carbon dioxide by plants. Here we propose a new framework for estimating a key metric to that end, the so-called leaf relative uptake rate. The values we deduce by applying principles of plant optimality are considerably lower than published values and may help reduce the uncertainty of the global COS budget.
François Jonard, Andrew F. Feldman, Daniel J. Short Gianotti, and Dara Entekhabi
Biogeosciences, 19, 5575–5590, https://doi.org/10.5194/bg-19-5575-2022, https://doi.org/10.5194/bg-19-5575-2022, 2022
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We investigate the spatial and temporal patterns of light and water limitation in plant function at the ecosystem scale. Using satellite observations, we characterize the nonlinear relationships between sun-induced chlorophyll fluorescence (SIF) and water and light availability. This study highlights that soil moisture limitations on SIF are found primarily in drier environments, while light limitations are found in intermediately wet regions.
Nikolai Knapp, Sabine Attinger, and Andreas Huth
Biogeosciences, 19, 4929–4944, https://doi.org/10.5194/bg-19-4929-2022, https://doi.org/10.5194/bg-19-4929-2022, 2022
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The biomass of forests is determined by forest growth and mortality. These quantities can be estimated with different methods such as inventories, remote sensing and modeling. These methods are usually being applied at different spatial scales. The scales influence the obtained frequency distributions of biomass, growth and mortality. This study suggests how to transfer between scales, when using forest models of different complexity for a tropical forest.
Kai Chen, Kevin S. Burgess, Fangliang He, Xiang-Yun Yang, Lian-Ming Gao, and De-Zhu Li
Biogeosciences, 19, 4801–4810, https://doi.org/10.5194/bg-19-4801-2022, https://doi.org/10.5194/bg-19-4801-2022, 2022
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Why does plants' distributional range size vary enormously? This study provides evidence that seed mass, intraspecific seed mass variation, seed dispersal mode and phylogeny contribute to explaining species distribution variation on a geographic scale. Our study clearly shows the importance of including seed life-history traits in modeling and predicting the impact of climate change on species distribution of seed plants.
Ying Ying Chen, Huan Yang, Gen Sheng Bao, Xiao Pan Pang, and Zheng Gang Guo
Biogeosciences, 19, 4521–4532, https://doi.org/10.5194/bg-19-4521-2022, https://doi.org/10.5194/bg-19-4521-2022, 2022
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Investigating the effect of the presence of plateau pikas on ecosystem services of alpine meadows is helpful to understand the role of the presence of small mammalian herbivores in grasslands. The results of this study showed that the presence of plateau pikas led to higher biodiversity conservation, soil nitrogen and phosphorus maintenance, and carbon sequestration of alpine meadows, whereas it led to lower forage available to livestock and water conservation of alpine meadows.
Clement Jean Frédéric Delcourt and Sander Veraverbeke
Biogeosciences, 19, 4499–4520, https://doi.org/10.5194/bg-19-4499-2022, https://doi.org/10.5194/bg-19-4499-2022, 2022
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This study provides new equations that can be used to estimate aboveground tree biomass in larch-dominated forests of northeast Siberia. Applying these equations to 53 forest stands in the Republic of Sakha (Russia) resulted in significantly larger biomass stocks than when using existing equations. The data presented in this work can help refine biomass estimates in Siberian boreal forests. This is essential to assess changes in boreal vegetation and carbon dynamics.
Iris Johanna Aalto, Eduardo Eiji Maeda, Janne Heiskanen, Eljas Kullervo Aalto, and Petri Kauko Emil Pellikka
Biogeosciences, 19, 4227–4247, https://doi.org/10.5194/bg-19-4227-2022, https://doi.org/10.5194/bg-19-4227-2022, 2022
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Tree canopies are strong moderators of understory climatic conditions. In tropical areas, trees cool down the microclimates. Using remote sensing and field measurements we show how even intermediate canopy cover and agroforestry trees contributed to buffering the hottest temperatures in Kenya. The cooling effect was the greatest during hot days and in lowland areas, where the ambient temperatures were high. Adopting agroforestry practices in the area could assist in mitigating climate change.
Jing Wang and Xuefa Wen
Biogeosciences, 19, 4197–4208, https://doi.org/10.5194/bg-19-4197-2022, https://doi.org/10.5194/bg-19-4197-2022, 2022
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Excess radiation and low temperatures exacerbate drought impacts on canopy conductance (Gs) among transects. The primary determinant of drought stress on Gs was soil moisture on the Loess Plateau (LP) and the Mongolian Plateau (MP), whereas it was the vapor pressure deficit on the Tibetan Plateau (TP). Radiation exhibited a negative effect on Gs via drought stress within transects, while temperature had negative effects on stomatal conductance on the TP but no effect on the LP and MP.
Sylvain Monteux, Janine Mariën, and Eveline J. Krab
Biogeosciences, 19, 4089–4105, https://doi.org/10.5194/bg-19-4089-2022, https://doi.org/10.5194/bg-19-4089-2022, 2022
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Quantifying the feedback from the decomposition of thawing permafrost soils is crucial to establish adequate climate warming mitigation scenarios. Past efforts have focused on abiotic and to some extent microbial drivers of decomposition but not biotic drivers such as soil fauna. We added soil fauna (Collembola Folsomia candida) to permafrost, which introduced bacterial taxa without affecting bacterial communities as a whole but increased CO2 production (+12 %), presumably due to priming.
Mirjam Pfeiffer, Munir P. Hoffmann, Simon Scheiter, William Nelson, Johannes Isselstein, Kingsley Ayisi, Jude J. Odhiambo, and Reimund Rötter
Biogeosciences, 19, 3935–3958, https://doi.org/10.5194/bg-19-3935-2022, https://doi.org/10.5194/bg-19-3935-2022, 2022
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Smallholder farmers face challenges due to poor land management and climate change. We linked the APSIM crop model and the aDGVM2 vegetation model to investigate integrated management options that enhance ecosystem functions and services. Sustainable intensification moderately increased yields. Crop residue grazing reduced feed gaps but not for dry-to-wet season transitions. Measures to improve soil water and nutrient status are recommended. Landscape-level ecosystem management is essential.
Cited articles
Alexandre, A., Meunier, J. D., Colin, F., and Koud, J. M.: Plant impact on the biogeochemical cycle of silicon and related weathering processes, Geochim. Cosmochim. Ac., 61, 677–682, 1997.
Alexandre, A., Bouvet, M., and Abbadie, L.: The role of savannas in the terrestrial Si cycle: a case-study from Lamto, Ivory Coast, Global Planet. Change 78, 162–169, https://doi.org/10.1016/j.gloplacha.2011.06.007, 2011.
Anderson, G. L., Hanson, J. D., and Haas, R. H.: Evaluating Landsat Thematic Mapper derived vegetation Indices for estimating above-ground biomass on semiarid rangelands, Remote Sens. Environ., 45, 165–175, https://doi.org/10.1016/0034-4257(93)90040-5, 1993.
Bartoli, F.: The biogeochemical cycle of silicon in two temperate forest ecosystems, Environ. Biogeochem. Ecol. Bull., 35, 469–476, https://doi.org/10.1016/j.gca.2007.11.010, 1983.
Berni, J. A. J., Zarco-Tejada, P. J., Suárez, L., and Fereres, E.: Thermal and Narrowband Multispectral Remote Sensing for Vegetation Monitoring From an Unmanned Aerial Vehicle, IEEE T. Geosci. Remote, 47, 722–738, https://doi.org/10.1109/TGRS.2008.2010457, 2009.
Biermans, V. and Baert, L.: Selective extraction of the amorphous Al, Fe and Si oxides using an alkaline Tiron solution, Clay Miner., 12, 127–135, https://doi.org/10.1180/CLAYMIN.1977.012.02.03, 1977.
Blecker, S. W., McCulley, R. L., Chadwick, O. A., and Kelly, E. F.: Biologic cycling of silica across a grassland bioclimosequence, Global Biogeochem. Cy., 20, GB3023, https://doi.org/10.1029/2006GB002690, 2006.
Bouman, B. A. M.: Accuracy of estimation the leaf area index from vegetation indices derived from crop reflectance characteristics, a simulation study, Int. J. Remote Sens., 13, 3069–3084, https://doi.org/10.1080/01431169208904103, 1992.
Carey, J. C. and Fulweiler, R. W.: The terrestrial silica pump, PLoS One 7, https://doi.org/10.1371/journal.pone.0052932, 2012.
Carey, J. C. and Fulweiler R. W.: Human appropriation of biogenic silicon–the increasing role of agriculture, Funct. Ecol., 30, 1331–1339, https://doi.org/10.1111/1365-2435.12544, 2016.
Clarke, J.: The occurrence and significance of biogenic opal in the regolith, Earth-Sci. Rev., 60, 175–194, https://doi.org/10.1016/S0012-8252(02)00092-2, 2003.
Conçalves, J. A., Henriques, R.: UAV photogrammetry for topographic monitoring of coastal areas, ISPRS J. Photogramm., 104, 101–111, https://doi.org/10.1016/j.isprsjprs.2015.02.009, 2015.
Cooke, J. and Leishman, M. R.: Tradeoffs between foliar silicon and carbon-based defences: evidence from vegetation communities of contrasting soil types. Oikos, 121, 2052–2060, https://doi.org/10.1111/j.1600-0706.2012.20057.x, 2012.
Cornelis, J. T. and Delvaux, B.: Soil processes drive the biological silicon feedback loop, Funct. Ecol., 30, 1298–1310, https://doi.org/10.1111/1365-2435.12704, 2016.
Cornelis, J. T., Ranger, J., Iserentant, A., and Delvaux, B.: Tree species impact the terrestrial cycle of silicon through various uptakes, Biogeochemistry, 97, 231–245, https://doi.org/10.1007/s10533-009-9369-x, 2010.
Cui, Z. and Kerekes, J. P.: Potential of red edge spectral bands in future Landsat satellites on agroecosystem canopy green leaf area index retrieval, Remote Sens.-Basel, 10, 1458, https://doi.org/10.3390/rs10091458, 2018.
Cui, X., Gibbes, C., Southworth, J., and Waylen, P.: Using Remote Sensing to Quantify Vegetation Change and Ecological Resilience in a Semi-arid System, Land, 2, 108–130, https://doi.org/10.3390/land2020108, 2013.
Dall'Asta, E., and Roncella, R. A.: Comparison of Semiglobal and Local Dense Matching Algorithms for Surface Reconstruction, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, ISPRS Technical Commission V Symposium, XL-5, Riva del Garda, Italy, 23–25 June 2014, https://doi.org/10.5194/isprsarchives-XL-5-187-2014.
Desplanques, V., Cary, L., Mouret, J. C., Trolard, F., Bourrié, G., Grauby, O., and Meunier, J.-D.: Silicon transfers in a rice field in Camargue (France), J. Geochem. Explor, 88, 190–193, https://doi.org/10.1016/j.gexplo.2005.08.036, 2006.
Dunford, R., Michel, K., Gagnage, M., Piégay, H., and Trémelo, M.-L.: Potential and constraints of Unmanned Arial Vehicle technology for the characterization of Mediterranean riparian forest, Int. J. Remote Sens., 30:19, 4915–4935, https://doi.org/10.1080/01431160903023025, 2009.
Dürr, H. H., Meybeck, M., Hartmann, J., Laruelle, G. G., and Roubeix, V.:
Global spatial distribution of natural riverine silica inputs to the coastal
zone, Biogeosciences, 8, 597–620, https://doi.org/10.5194/bg-8-597-2011, 2011.
Easterday, K., Kislik, C., Dawson, T. E., Hogan, S., and Kelly, M.: Remotely Sensed Water Limitation in Vegetation: Insights from an Experiment with Unmanned Aerial Vehicles (UAVs), Remote Sens., 11, 1853, https://doi.org/10.3390/rs11161853, 2019.
Ehrlich, H., Demadis, K. D., Pokrovsky, O. S., and Koutsoukos, P. G.: Modern views on desilicification: biosilica and abiotic silica dissolution in natural and artificial environments, Chem. Rev., 110, 4656–4689, https://doi.org/10.1021/cr900334y, 2010.
Elmer, M., Schaaf, W., Biemelt, D., Nenov, R., and Gerwin, W.: Introduction, in: The artificial catchment “Chicken Creek” – Initial ecosystem development 2005–2010, edited by: Elmer, M., Schaaf, W., Biemelt, D., Gerwin, W., and Hüttl, R. F., Ecosyst. Dev. 3. Brandenburg Univ. of Technol., Cotbtus, Germany, 1–10, 2011.
Elmer, M., Gerwin, W., Schaaf, W., Zaplata, M. K., Hohberg, K., Nenov, R., Bens, O., and Hüttl, R. F.: Dynamics of initial ecosystem development at the artificial catchment Chicken Creek, Lusatia, Germany, Environ. Earth Sci., 69, 491–505, https://doi.org/10.1007/s12665-013-2330-2, 2013.
Epstein, E.: Silicon: its manifold roles in plants, Annals of Applied Biology, 155, 155–160, https://doi.org/10.1111/j.1744-7348.2009.00343.x, 2009.
Fraysse, F., Pokrovsky, O. S., Schott, J., and Meunier, J. D.: Surface properties, solubility and dissolution kinetics of bamboo phytoliths, Geochim. Cosmochim. Ac., 70, 1939–1951, https://doi.org/10.1016/j.gca.2005.12.025, 2006.
Fraysse, F., Pokrovsky, O. S., Schott, J., and Meunier, J. D.: Surface chemistry and reactivity of plant phytoliths in aqueous solutions, Chem. Geol., 258, 197–206, https://doi.org/10.1016/j.chemgeo.2008.10.003, 2009.
Fuller, R. M., Groom, G. B., Mugisha, S., Ipulet, P., Pomeroy, D., Katende, A., Baily, R., and Ogutu-Ohwayo, R.: The integration of field survey and remote sensing for biodiversity assessment: a case study in the tropical forests and wetlands of Sango Bay, Uganda, Biol. Conserv., 86, 379–391, https://doi.org/10.1016/S0006-3207(98)00005-6, 1998.
Gamon, J. A., Field, C. B., Goulden, M. L., Griffin, K. L., Hartley, A. E., Joel, G., Penuelas, J., and Valentini, R.: Relationships between NDVI, Canopy Structure, and Photosynthesis in three Californian Vegetation Types, Ecol. Appl., 5, 28–41, 1995.
Gao, X., Huete, A. R., Ni, W., and Miura, T.: Optical-biophysical relationships of vegetation spectra without background contamination, Remote Sens. Environ., 74, 609–620, 2000.
Gerke, H. H., Maurer, T., and Schneider, A.: A three-dimensional structure and process model for integrated hydro-geo-pedologic analysis of a constructed hydrological catchment, Vadose Zone J., 12, 4, https://doi.org/10.2136/vzj2013.02.0040, 2013.
Gerwin, W., Schaaf, W., Biemelt, D., Fischer, A., Winter, S., and Hüttl, R. F.: The artificial catchment Chicken Creek (Lusatia, Germany) – a landscape laboratory for interdisciplinary studies of initial ecosystem development, Ecol. Eng., 35, 1786–1796, 2009.
Gerwin, W., Schaaf, W., Biemelt, D., Elmer, M., Maurer, T., and Schneider, A.: The Artificial catchment “Hühnerwasser” (Chicken Creek): construction and initial properties, in: Ecosystem Development 1, edited by: Hüttl, R. F., Schaaf, W., Biemelt, D., and Gerwin, W., pp. 58, 2010.
Gerwin, W., Schaaf, W., Biemelt, D., Winter, S., Fischer, A., Veste, M., and Hüttl, R. F.: Overview and first results of ecological monitoring at the artificial watershed Chicken Creek (Germany), Phys. Chem. Earth, 36, 61–73, https://doi.org/10.1016/j.pce.2010.11.003, 2011.
Gonzáles, M. P., Bonaccorso, E., and Papeş, M.: Applications of geographic information systems and remote sensing techniques to conservation of amphibians in northwestern Ecuador, Global Ecology and Conservation, 3, 562–574, https://doi.org/10.1016/j.gecco.2015.02.006, 2015.
Guntzer, F., Keller, C., Poulton, P. R., McGrath, S. P., and Meunier, J.-D.: Long-term removal of wheat straw decreases soil amorphous silica at Broadbalk, Rothamsted, Plant Soil, 352, 173–184, doi: 0.1007/s11104-011-0987-4, 2012.
Haboudane, D., Miller, J. R., Pattey, E., Zarco-Tejada, P. J., and Strachan, I. B.: Hyperspectral vegetation indices and novel algorithms for predicting green LAI of crop canopies: Modeling and validation in the context of precision agriculture, Remote Sens. Environ., 90, 337–352, https://doi.org/10.1016/j.rse.2003.12.013, 2004.
Hodson, M. J., White, P. J., Mead, A., and Broadley, M. R.: Phylogenetic variation in the silicon composition of plants, Ann. Bot.-London, 96, 1027–1046, https://doi.org/10.1093/aob/mci255, 2005.
Hugemann, W.: Correcting Lens Distortions in Digital Photographs, Ingenieurbüro Morawski + Hugemann, Leverkusen, Germany, 2010.
Husson, E., Hagner, O., and Ecke, F.: Unmanned aircraft systems help to map aquatic vegetation, Appl. Veg. Sci., 17, 567–577, https://doi.org/10.1111/avsc.12072, 2014.
Husson, E., Ecke, F., and Reese, H.: Comparison of manual mapping and automated object-based image analysis of non-submerged aquatic vegetation from very-high-resolution UAS images, Remote Sens.-Basel, 8, 724, https://doi.org/10.3390/rs8090724, 2016.
Kaczorek, D., Puppe, D., Busse, J., and Sommer, M.: Effects of phytolith distribution and characteristics on extractable silicon fractions in soils under different vegetation–An exploratory study on loess. Geoderma, 356, 113917, https://doi.org/10.1016/j.geoderma.2019.113917, 2019.
Kaneko, K. and Nohara, S.: Review of effective vegetation mapping using the UAV (Unmanned Aerial Vehicle) Method, Journal of Geographic Information Systems, 6, 733–742, https://doi.org/10.4236/jgis.2014.66060, 2014.
Katz, O., Puppe, D., Kaczorek, D., Prakash, N. B., and Schaller, J.: Silicon in the soil–plant continuum: Intricate feedback mechanisms within ecosystems, Plants, 10, 4, 652, 2021.
Kavzoglu, T. and Mather, P. M.: The Use of Feature Selection Techniques in the Context of Artificial Neural Networks, Proceedings of the 26th Annual Conference of the Remote Sensing Society, Leicester, UK, 12–14 September, unpaginated CD ROM, 2000.
Kelcey, J. and Lucieer, A.: Sensor Correction of a 6-Band Multispectral Imaging Sensor for UAV Remote Sensing, Remote Sens.-Basel, 4, 1462–1493, https://doi.org/10.3390/rs4051462, 2012.
Keller, C., Guntzer, F., Barboni, D., Labreuche, J., and Meunier, J. D.: Impact of agriculture on the Si biogeochemical cycle: input from phytolith studies, C. R. Geosci., 344, 739–746, https://doi.org/10.1016/j.crte.2012.10.004, 2012.
Kim, J. Y., Rastogi, G., Do, Y., Kim, D.-K., Muduli, P. R., Samal, R. N., Pattnaik, A. K., and Joo, G.-J.: Trends in a satellite-derived vegetation index and environmental variables in a restored brackish lagoon, Global Ecol. Conserv., 4, 614–624, https://doi.org/10.1016/j.gecco.2015.10.010, 2015.
Kodama, H. and Ross, G. J.: Tiron dissolution method used to remove and characterize inorganic components in soils, Soil Sci. Soc. Am. J., 55, 1180–1187, https://doi.org/10.2136/sssaj1991.03615995005500040047x, 1991.
Kross, A., McNairn, H., Lapen, D., Sonohara, M., and Champagne, C.: Assessment of RapidEye vegetation indices for estimation of leaf area index and biomass in corn and soybean crops, Int. J. Appl. Earth Obs., 34, 235–248, https://doi.org/10.1016/j.jag.2014.08.002, 2015.
Laliberte, A. S., Goforth, M. A., Steele, C. M., and Rango, A.: Multispectral Remote Sensing from Unmanned Aircraft: Image Processing Workflows and Applications for Rangeland Environments, Remote Sens.-Basel, 3, 2529–2551, https://doi.org/10.3390/rs3112529, 2011.
Lelong, C. C. D., Burger, P., Jubelin, G., Roux, B., Labbé, S., and Baret, F.: Assessment of Unmanned Aerial Vehicles Imagery for Quantitative Monitoring of Wheat Crop in Small Plots, Sensors, 8, 3557–3585, https://doi.org/10.3390/s8053557, 2008.
Li, Z., Cornelis, J. T., Vander Linden, C., Van Ranst, E., and Delvaux, B.: Neoformed aluminosilicate and phytogenic silica are competitive sinks in the silicon soil–plant cycle, Geoderma, 368, 114308, https://doi.org/10.1016/j.geoderma.2020.114308, 2020.
Li, Z., Unzué-Belmonte, D., Cornelis, J.-T., Vander
Linden, C., Struyf, E., Ronsse, F., and Delvaux, B.: Effects of phytolithic rice-straw biochar, soil buffering capacity and pH on silicon bioavailability, Plant Soil, 438, 187–203, https://doi.org/10.1007/s11104-019-04013-0, 2019.
Li, Z. and Delvaux, B.: Phytolith-rich biochar: A potential Si fertilizer in desilicated soils, GCB Bioenergy, 11, 1264–1282, https://doi.org/10.1111/gcbb.12635, 2019.
Ma, J. F. and Yamaji, N.: Silicon uptake and accumulation in higher plants, Trends Plant Sci., 11, 392–397, https://doi.org/10.1016/j.tplants.2006.06.007, 2006.
Mansouri, A., Marzani, F. S., and Gouton, P.: Development of a protocol for CCD calibration: application to a multispectral imaging system, Int. J. Robot. Autom., 3767, 1–12, https://doi.org/10.2316/Journal.206.2005.2.206-2784, 2005.
Meng, B., Gao, J., Liang, T., Cui, X., Ge, J., Yin, J., Feng, Q., and Xie, H.: Modeling of alpine grassland cover based on Unmanned Arial Vehicle technology and multi-factor methods: A case study in the east of Tibetan Plateau, China, Remote Sens.-Basel, 10, 320, https://doi.org/10.3390/rs10020320, 2018.
Meunier, J. D., Guntzer, F., Kirman, S., and Keller, C.: Terrestrial plant-Si and environmental changes, Mineralogical Magazine, 72, 263–267, https://doi.org/10.1180/minmag.2008.072.1.263, 2008.
Meunier, J. D., Keller, C., Guntzer, F., Riotte, J., Braun, J. J., and Anupama, K.: Assessment of the 1 % Na2CO3 technique to quantify the phytolith pool, Geoderma, 216, 30–35, 2014.
Moran, M. S., Jackson, R. D., Clarke, T. R., Qi, J., Cabot, F., Thome, K. J., and Markham, B. L.: Reflectance factor retrieval from Landsat TM and SPOT HRV data for bright and dark targets, Remote Sens. Environ., 52, 218–230, 1995.
Mundava, C., Helmholz, P., Schut, A. G. T., Corner. R., McAtee, B., and Lamb, D. W.: Evaluation of vegetation indices for rangeland biomass estimation in the Kimberly area of Western Australia, ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, ISPRS Technical Commission VII Symposium, Istanbul, Turkey, 29 September–2 October 2014, Volume II-7.
Otukei, J. R. and Blaschke, T.: Land cover change assessment using decision trees, support vector machines and maximum likelihood classification algorithms, Int. J. Appl. Earth Obs., 12S, 27–31, https://doi.org/10.1016/j.jag.2009.11.002, 2010.
Polis, G. A.: Why are parts of the world green? Multiple factors control productivity and the distribution of biomass, Oikos, 86, 3–15, 1999.
Prychid, C. J., Rudall, P. J., and Gregory, M.: Systematics and biology of silica bodies in monocotyledons, Bot. Rev., 69, 377–440, 2004.
Puppe, D.: Review on protozoic silica and its role in silicon cycling. Geoderma 365, 114224, https://doi.org/10.1016/j.geoderma.2020.114224, 2020.
Puppe, D. and Leue, M.: Physicochemical surface properties of different biogenic silicon structures: results from spectroscopic and microscopic analyses of protistic and phytogenic silica. Geoderma 330, 212–220, https://doi.org/10.1016/j.geoderma.2018.06.001, 2018.
Puppe, D. and Sommer, M.: Experiments, uptake mechanisms, and functioning of silicon foliar fertilization – a review focusing on maize, rice, and wheat. Adv. Agron. 152, 1–49, https://doi.org/10.1016/bs.agron.2018.07.003, 2018.
Puppe, D., Kaczorek, D., Wanner, M., and Sommer, M.: Dynamics and drivers of the protozoic Si pool along a 10-year chronosequence of initial ecosystem states, Ecol. Eng., 70, 477–482, https://doi.org/10.1016/j.ecoleng.2014.06.011, 2014.
Puppe, D., Ehrmann, O., Kaczorek, D., Wanner, M., and Sommer, M.: The protozoic Si pool in temperate forest ecosystems – Quantification, abiotic controls and interactions with earthworms, Geoderma, 243–244, 196–204, https://doi.org/10.1016/j.geoderma.2014.12.018, 2015.
Puppe, D., Höhn, A., Kaczorek, D., Wanner, M., and Sommer, M.: As Time Goes By – Spatiotemporal Changes of Biogenic Si Pools in Initial Soils of an Artificial Catchment in NE Germany, Appl. Soil Ecol., 105, 9–16, https://doi.org/10.1016/j.apsoil.2016.01.020, 2016.
Puppe, D., Höhn, A., Kaczorek, D., Wanner, M., Wehrhan, M., and Sommer, M.: How big is the influence of biogenic silicon pools on short-term changes in water-soluble silicon in soils? Implications from a study of a 10-year-old soil–plant system, Biogeosciences, 14, 5239–5252, https://doi.org/10.5194/bg-14-5239-2017, 2017.
Puppe, D., Wanner, M., and Sommer, M.: Data on euglyphid testate amoeba densities corresponding protozoic silicon pools, and selected soil parameters of initial and forested biogeosystems, Data in Brief, 21, 1697–1703, https://doi.org/10.1016/j.dib.2018.10.164, 2018.
Puppe, D., Kaczorek, D., Schaller, J., Barkusky, D., and Sommer, M.: Crop straw recycling prevents anthropogenic desilication of agricultural soil–plant systems in the temperate zone–Results from a long-term field experiment in NE Germany, Geoderma, 403, 115187, https://doi.org/10.1016/j.geoderma.2021.115187, 2021.
Rebele, F. and Lehmann, C.: Biological flora of central Europe: Calamagrostis epigejos ( L.) Roth, Flora, 196, 325–344, https://doi.org/10.1016/S0367-2530(17)30069-5, 2001.
Rouse, J. W., Haas, R. H., Schell, J. A., and Deering, D. W.: Monitoring vegetation system in the great plains with ERTS, Proceedings of the Third Earth Resources Technology Satellite-1 Symposium, Greenbelt, USA, NASA SP-351, 3010–3017, 1974.
Sauer, D., Saccone, L., Conley, D. J., Herrmann, L., and Sommer, M.: Review of methodologies for extracting plant-available and amorphous Si from soils and aquatic sediments, Biogeochemistry, 80, 89–108, https://doi.org/10.1007/s10533-005-5879-3, 2006.
Schaaf, W., Biemelt, D., Hüttl, R. F.: Initial development of the artificial catchment “Chicken Creek” – monitoring program and survey 2005–2008, Ecosystem Development 2, Forschungszentrum für Landschaftsentwicklung und Bergbaulandschaften der BTU Cottbus, Cottbus, 2010.
Schaller, J., Roscher, C., Hillebrand, H., Weigelt, A., Oelmann, Y., Wilcke, W., Ebeling, A., and Weisser, W. W.: Plant diversity and functional groups affect Si and Ca pools in aboveground biomass of grassland systems, Oecologia, 182, 277–286, 2016.
Schaller, J., Hodson, M. J., and Struyf, E.: Is relative Si/Ca availability crucial to the performance of grassland ecosystems?, Ecosphere, 8, e01726, https://doi.org/10.1002/ecs2.1726, 2017.
Schaller, J., Puppe, D., Kaczorek, D., Ellerbrock, R., and
Sommer, M.: Silicon cycling in soils revisited, Plants, 10,
295, https://doi.org/10.3390/plants10020295, 2021.
Schneider, A., Maurer, T., and Gerke, H. H.: Aspects of initial surface development, in: The artificial catchment “Chicken Creek” – Initial ecosystem development 2005–2010, edited by: Elmer, M., Schaaf, W., Biemelt, D., Gerwin, W., and Hüttl, R. F., Ecosyst. Dev. 3. Brandenburg Univ. of Technol., Cottbus, Germany, 11–32, 2011.
Shafri, H. Z. M., Suhaili, A., and Mansor, S.: The Performance of Maximum Likelihood, Spectral Angle Mapper, Neural Network and Decision Tree Classifiers in Hyperspectral Image Analysis, J. Comput. Sci., 3, 419–423, https://doi.org/10.3844/jcssp.2007.419.423, 2007.
Sommer, M., Kaczorek, D., Kuzyakov, Y., and Breuer, J.: Silicon pools and fluxes in soils and landscapes – a review, J. Plant Nutr. Soil Sc., 169, 310–329, https://doi.org/10.1002/jpln.200521981, 2006.
Sommer, M., Jochheim, H., Höhn, A., Breuer, J., Zagorski, Z., Busse, J.,
Barkusky, D., Meier, K., Puppe, D., Wanner, M., and Kaczorek, D.: Si cycling
in a forest biogeosystem the importance of transient state biogenic Si pools,
Biogeosciences, 10, 4991–5007, https://doi.org/10.5194/bg-10-4991-2013, 2013.
Song, Z., Müller, K., and Wang, H.: Biogeochemical silicon cycle and carbon sequestration in agricultural ecosystems, Earth-Sci. Rev., 139, 268–278, https://doi.org/10.1016/j.earscirev.2014.09.009, 2014.
Stoner, E. R. and Baumgardner, M. F.: Characteristic variations in reflectance of surface soils, Soil Sci. Soc. Am. J., 45, 1161–1165, 1981.
Strecha, C., Fletcher, A., Lechner, A., Erskine, P., and Fua, P.: Developing species specific vegetation maps using multi-spectral hyperspatial imagery from unmanned aerial vehicles, ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XXII ISPRS Congress, Melbourne, Australia, 25 August–1 September 2012, Volume I-3, 311–316, 2012.
Street-Perrott, F. A. and Barker, P. A.: Biogenic silica: a neglected component of the coupled global continental biogeochemical cycles of carbon and silicon, Earth Surf. Proc. Land. 33, 1436–1457, 2008.
Struyf, E. and Conley, D. J.: Silica: an essential nutrient in wetland biogeochemistry, Front. Ecol. Environ., 7, 88–94, https://doi.org/10.1890/070126, 2009.
Struyf, E. and Conley, D. J.: Emerging understanding of the ecosystem silica filter, Biogeochemistry, 107, 9–18, https://doi.org/10.1007/s10533-011-9590-2, 2012.
Struyf, E., Smis, A., Van Damme, S., Garnier, J., Govers, G., Van Wesemael, B., Conley, D.J, Batelaan, O., Frot, E., Clymans, W., Vandevenne, F., Lancelot, C., Goos, P., and Meire, P.: Historical land use change has lowered terrestrial silica mobilization, Nat. Commun., 1, 129, https://doi.org/10.1038/ncomms1128, 2010.
Süß, K., Storm, C., Zehm, A., and Schwabe, A.: Succession in inland sand ecosystems: which factors determine the occurrence of the tall grass species Calamagrostis epigejos ( L.) Roth and Stipa capillata L.?, Plant Biol., 6, 465–476, https://doi.org/10.1055/s-2004-820871, 2004.
Swain, P. H. and Davis, S. M. (Eds.): Remote Sensing: The Quantitative Approach, McGraw Hill, New York, N.Y., Hamburg, Germany, 1978.
Thenkabail, P. S., Smith, R. B., and De Pauw, E.: Evaluation of
Narrowband and Broadband Vegetation Indices for Determining Optimal
Hyperspectral Wavebands for Agricultural Crop Characterization,
Photogramm. Eng. Rem. S., 68, 607–621, 2002.
Todd, S. W., Hoffer, R. M., and Milchunas, D. G.: Biomass estimation on grazed and ungrazed rangelands using spectral indices, Int. J. Remote Sens., 19, 427–438, https://doi.org/10.1080/014311698216071, 1998.
Turner, D., Lucieer, A., Malenovský, Z., King, D. H., and Robinson, S. A.: Spatial Co-Registration of Ultra-High Resolution Visible, Multispectral and Thermal Images Acquired with a Micro-UAV over Antarctic Moss Beds, Remote Sens.-Basel, 6, 4003–4024, https://doi.org/10.3390/rs6054003, 2014.
Turpault, M.-P., Calvaruso, C., Kirchen, G., Redon, P.-O., and Cochet, C.: Contribution of fine tree roots to the silicon cycle in a temperate forest ecosystem developed on three soil types, Biogeosciences, 15, 2231–2249, https://doi.org/10.5194/bg-15-2231-2018, 2018.
van der Putten, W. H.: Die-back of Phragmites australis in European wetlands: an overview of the European research programme on reed die-back and progression (1993–1994), Aquat. Bot., 59, 263–275, 1997.
Vandevenne, F., Struyf, E., Clymans, W., and Meire, P.: Agricultural silica harvest: have humans created a new loop in the global silica cycle?, Front. Ecol. Environ., 10, 243–248, https://doi.org/10.1890/110046, 2012.
Vandevenne, F. I., Barão, L., Ronchi, B., Govers, G., Meire, P., Kelly, E. F., and Struyf, E.: Silicon pools in human impacted soils of temperate zones, Global Biogeochem. Cy., 29, 1439–1450, https://doi.org/10.1002/2014GB005049, 2015a.
Vandevenne, F. I., Delvaux C., Hughes H. J., André L., Ronchi B., Clymans W., Barão L., Govers G., Meire, P., and Struyf, E.: Landscape cultivation alters δ30Si signature in terrestrial ecosystems, Sci. Rep.-UK, 5, 7732, https://doi.org/10.1038/srep07732, 2015b.
VDLUFA: Methodenbuch Band I: Die Untersuchung von Böden, Kap. 6.2.1.2., VDLUFA Verlag, Speyer, 1991.
Wang, J., Rich, P. M., Price, K. P., and Kettle, W. D.: Relationship between NDVI, Grassland Production, and Crop Yield in the Central Great Plains, Geocarto Int., 20, 5–11, https://doi.org/10.1080/10106040508542350, 2005.
Wehrhan, M., Rauneker, P., and Sommer, M.: UAV-based Estimation of Carbon Exports from Heterogeneous Soil Landscapes – A Case Study from the CarboZALF Experimental Area, Sensors, 16, 255, https://doi.org/10.3390/s16020255, 2016.
Xu, N., Tian, J., Tian, Q., Xu, K., and Tang, S.: Analysis of vegetation red edge with different illuminated/shaded canopy proportions and to construct Normalized Difference Canopy Shadow Index, Remote Sens.-Basel, 11, 1192, https://doi.org/10.3390/rs11101192, 2019.
Yang, X., Zhaoliang, S., Zhilian, Q., Wu, L., Yin, L., Van
Zwieten, L., Song, A., Ran, X., Yu, C., and Wang, H.: Phytolith-rich straw application and groundwater table management over 36 years affect the soil-plant silicon cycle of a paddy field, Plant Soil, 454, 343–358, https://doi.org/10.1007/s11104-020-04656-4, 2020.
Zaplata, M. K., Winter, S., Biemelt, D., and Fischer, A.: Immediate shift towards source dynamics: the pioneer species Conyza canadensis in an initial ecosystem, Flora, 206, 928–934, https://doi.org/10.1016/j.flora.2011.07.001, 2011a.
Zaplata, M. K., Fischer, A., and Winter, S.: Vegetation patterning. in: The artificial catchment “Chicken Creek” – initial ecosystem development 2005–2010, Ecosystem Development, 3, edited by: Elmer, M., Schaaf, W., Biemelt, D., Gerwin, W., and Hüttl, R. F., BTU, Cottbus, pp. 67–92, 2011b.
Zaplata, M. K., Winter, S., Fischer, A., Kollmann, J., and Ulrich, W.: Species-driven phases and increasing structure in early-successional plant communities, Am. Nat., 181, E17–E27, https://doi.org/10.1086/668571, 2013.
Zarco-Tejada, P. J., Hornero, A., Hernandez-Clemente, R., and Beck, P. S. A.: Understanding the temporal dimension of the red –edge spectral region for forest decline detection using high-resolution hyperspectral and Sentinel-2a imagery, ISPRS J. Photogramm., 137, 134–148, https://doi.org/10.1016/j.isprsjprs.2018.01.017, 2018.
Zarco-Tejada, P. J., González-Dugo, V., and Berni, J. A. J.: Fluorescence, temperature and narrow-band indices acquired from a UAV platform for water stress detection using a micro-hyperspectral imager and a thermal camera, Remote Sens. Environ., 117, 322–337, https://doi.org/10.1016/j.rse.2011.10.007, 2012.
Zweig, C. L., Burgess, M. A., Percival, H. F., and Kitchens, W. M.: Use of unmanned aircraft systems to delineate fine-scale wetland vegetation communities, Wetlands, 35, 303–309, https://doi.org/10.1007/s13157-014-0612-4, 2015.
Short summary
UAS remote sensing provides a promising tool for new insights into Si biogeochemistry at catchment scale. Our study on an artificial catchment shows surprisingly high silicon stocks in the biomass of two grass species (C. epigejos, 7 g m−2; P. australis, 27 g m−2). The distribution of initial sediment properties (clay, Tiron-extractable Si, nitrogen, plant-available potassium) controlled the spatial distribution of C. epigejos. Soil wetness determined the occurrence of P. australis.
UAS remote sensing provides a promising tool for new insights into Si biogeochemistry at...
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