Articles | Volume 16, issue 7
https://doi.org/10.5194/bg-16-1411-2019
© Author(s) 2019. 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-16-1411-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
05 Apr 2019
Research article |
| 05 Apr 2019
| 05 Apr 2019
Dissolved organic matter characteristics of deciduous and coniferous forests with variable management: different at the source, aligned in the soil
Lisa Thieme
CORRESPONDING AUTHOR
Institute of Soil Science and Soil Conservation, iFZ Research Centre
for Biosystems, Land Use and Nutrition, Justus Liebig University Giessen,
Heinrich-Buff-Ring 26–32, 35392 Giessen, Germany
Department of Ecology, Chair of Soil Science, Technische
Universität Berlin, Ernst-Reuter-Platz 1, 10587 Berlin, Germany
Daniel Graeber
Department of Aquatic Ecosystem Analysis, Helmholtz Centre for
Environmental Research – UFZ, Magdeburg, Brückstraße 3a, 39114
Magdeburg, Germany
Diana Hofmann
Institute of Bio- and Geosciences, Agrosphere (IBG-3),
Forschungszentrum Jülich, 52425 Jülich, Germany
Sebastian Bischoff
Institute of Geography, Department of Soil Science, Friedrich-Schiller-Universität Jena, Löbdergraben 32, 07743 Jena, Germany
Martin T. Schwarz
Institute of Geography and Geoecology, Karlsruhe Institute of
Technology (KIT), Reinhard-Baumeister-Platz 1, 76131 Karlsruhe, Germany
current address: Office of Landscape, Agriculture and Environment,
Building Department, Canton of Zurich, Walcheplatz 2, 8090 Zurich,
Switzerland
Bernhard Steffen
Jülich Supercomputing Centre (JSC), Forschungszentrum Jülich,
52425 Jülich, Germany
Ulf-Niklas Meyer
Institute of Geography, Department of Soil Science, Friedrich-Schiller-Universität Jena, Löbdergraben 32, 07743 Jena, Germany
current address: Institute of Landscape Ecology, University of
Münster, Heisenbergstrasse 2, 48141 Münster, Germany
Martin Kaupenjohann
Department of Ecology, Chair of Soil Science, Technische
Universität Berlin, Ernst-Reuter-Platz 1, 10587 Berlin, Germany
Wolfgang Wilcke
Institute of Geography and Geoecology, Karlsruhe Institute of
Technology (KIT), Reinhard-Baumeister-Platz 1, 76131 Karlsruhe, Germany
Beate Michalzik
Institute of Geography, Department of Soil Science, Friedrich-Schiller-Universität Jena, Löbdergraben 32, 07743 Jena, Germany
Jan Siemens
Institute of Soil Science and Soil Conservation, iFZ Research Centre
for Biosystems, Land Use and Nutrition, Justus Liebig University Giessen,
Heinrich-Buff-Ring 26–32, 35392 Giessen, Germany
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Freezing can affect dissolved organic matter properties and concentrations. Nevertheless, water samples are regularly frozen for sample preservation. To test, if fast-freezing with liquid nitrogen instead of normal freezing at −18 °C can prevent changes in DOM characteristics, we compared fresh and differently frozen terrestrial water samples. We found that fast-freezing with liquid nitrogen can prevent bulk organic matter concentrations but not its spectroscopic properties.
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Biogeosciences, 13, 4697–4705, https://doi.org/10.5194/bg-13-4697-2016, https://doi.org/10.5194/bg-13-4697-2016, 2016
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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 in its role. These results are essential for comprehending plant nutrient status, plant productivity and nutrient cycling.
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.
Cheng-Hsien Lin, Colleen Zumpf, Chunhwa Jang, Thomas Voigt, Guanglong Tian, Olawale Oladeji, Albert Cox, Rehnuma Mehzabin, and Do Kyoung Lee
EGUsphere, https://doi.org/10.5194/egusphere-2024-203, https://doi.org/10.5194/egusphere-2024-203, 2024
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Riparian areas are subject to environmental issues (nutrient leaching) associated with low productivity. Perennial grasses can improve ecosystem services from riparian zones while producing forage/bioenergy feedstock biomass, as potential income for farmers. In this study, the forage-type buffer can be an ideal short-term candidate due to its great efficiency of nutrient scavenging; the bioenergy-type showed better sustainability than the forage buffer and a continuous yield supply potential.
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.
Lilian Vallet, Charbel Abdallah, Thomas Lauvaux, Lilian Joly, Michel Ramonet, Philippe Ciais, Morgan Lopez, Irène Xueref-Remy, and Florent Mouillot
EGUsphere, https://doi.org/10.5194/egusphere-2023-2421, https://doi.org/10.5194/egusphere-2023-2421, 2023
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2022 fire season had a huge impact on European temperate forest, with several large fires exhibiting prolonged soil combustion reported. We analyzed CO and CO2 concentration recorded at nearby atmospheric towers, revealing intense smoldering combustion. We refined a fire emission model to incorporate this process. We estimated 7.95 MteqCO2 fire emission, twice the global estimate. Fires contributed to 1.97 % of the country's annual carbon footprint, reducing forest carbon sink by 30 % this year.
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.
Marina Corrêa Scalon, Imma Oliveras Menor, Renata Freitag, Karine S. Peixoto, Sami W. Rifai, Beatriz Schwantes Marimon, Ben Hur Marimon Junior, and Yadvinder Malhi
Biogeosciences, 19, 3649–3661, https://doi.org/10.5194/bg-19-3649-2022, https://doi.org/10.5194/bg-19-3649-2022, 2022
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We investigated dynamic nutrient flow and demand in a typical savanna and a transition forest to understand how similar soils and the same climate dominated by savanna vegetation can also support forest-like formations. Savanna relied on nutrient resorption from wood, and nutrient demand was equally partitioned between leaves, wood and fine roots. Transition forest relied on resorption from the canopy biomass and nutrient demand was predominantly driven by leaves.
Emma Bousquet, Arnaud Mialon, Nemesio Rodriguez-Fernandez, Stéphane Mermoz, and Yann Kerr
Biogeosciences, 19, 3317–3336, https://doi.org/10.5194/bg-19-3317-2022, https://doi.org/10.5194/bg-19-3317-2022, 2022
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Pre- and post-fire values of four climate variables and four vegetation variables were analysed at the global scale, in order to observe (i) the general fire likelihood factors and (ii) the vegetation recovery trends over various biomes. The main result of this study is that L-band vegetation optical depth (L-VOD) is the most impacted vegetation variable and takes the longest to recover over dense forests. L-VOD could then be useful for post-fire vegetation recovery studies.
Chen Yang, Yue Shi, Wenjuan Sun, Jiangling Zhu, Chengjun Ji, Yuhao Feng, Suhui Ma, Zhaodi Guo, and Jingyun Fang
Biogeosciences, 19, 2989–2999, https://doi.org/10.5194/bg-19-2989-2022, https://doi.org/10.5194/bg-19-2989-2022, 2022
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Quantifying China's forest biomass C pool is important in understanding C cycling in forests. However, most of studies on forest biomass C pool were limited to the period of 2004–2008. Here, we used a biomass expansion factor method to estimate C pool from 1977 to 2018. The results suggest that afforestation practices, forest growth, and environmental changes were the main drivers of increased C sink. Thus, this study provided an essential basis for achieving China's C neutrality target.
Anne Schucknecht, Bumsuk Seo, Alexander Krämer, Sarah Asam, Clement Atzberger, and Ralf Kiese
Biogeosciences, 19, 2699–2727, https://doi.org/10.5194/bg-19-2699-2022, https://doi.org/10.5194/bg-19-2699-2022, 2022
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Actual maps of grassland traits could improve local farm management and support environmental assessments. We developed, assessed, and applied models to estimate dry biomass and plant nitrogen (N) concentration in pre-Alpine grasslands with drone-based multispectral data and canopy height information. Our results indicate that machine learning algorithms are able to estimate both parameters but reach a better level of performance for biomass.
Ramona J. Heim, Andrey Yurtaev, Anna Bucharova, Wieland Heim, Valeriya Kutskir, Klaus-Holger Knorr, Christian Lampei, Alexandr Pechkin, Dora Schilling, Farid Sulkarnaev, and Norbert Hölzel
Biogeosciences, 19, 2729–2740, https://doi.org/10.5194/bg-19-2729-2022, https://doi.org/10.5194/bg-19-2729-2022, 2022
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Fires will probably increase in Arctic regions due to climate change. Yet, the long-term effects of tundra fires on carbon (C) and nitrogen (N) stocks and cycling are still unclear. We investigated the long-term fire effects on C and N stocks and cycling in soil and aboveground living biomass.
We found that tundra fires did not affect total C and N stocks because a major part of the stocks was located belowground in soils which were largely unaltered by fire.
Aileen B. Baird, Edward J. Bannister, A. Robert MacKenzie, and Francis D. Pope
Biogeosciences, 19, 2653–2669, https://doi.org/10.5194/bg-19-2653-2022, https://doi.org/10.5194/bg-19-2653-2022, 2022
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Forest environments contain a wide variety of airborne biological particles (bioaerosols) important for plant and animal health and biosphere–atmosphere interactions. Using low-cost sensors and a free-air carbon dioxide enrichment (FACE) experiment, we monitor the impact of enhanced CO2 on airborne particles. No effect of the enhanced CO2 treatment on total particle concentrations was observed, but a potential suppression of high concentration bioaerosol events was detected under enhanced CO2.
Melanie S. Verlinden, Hamada AbdElgawad, Arne Ven, Lore T. Verryckt, Sebastian Wieneke, Ivan A. Janssens, and Sara Vicca
Biogeosciences, 19, 2353–2364, https://doi.org/10.5194/bg-19-2353-2022, https://doi.org/10.5194/bg-19-2353-2022, 2022
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Zea mays grows in mesocosms with different soil nutrition levels. At low phosphorus (P) availability, leaf physiological activity initially decreased strongly. P stress decreased over the season. Arbuscular mycorrhizal fungi (AMF) symbiosis increased over the season. AMF symbiosis is most likely responsible for gradual reduction in P stress.
Guoyu Lan, Bangqian Chen, Chuan Yang, Rui Sun, Zhixiang Wu, and Xicai Zhang
Biogeosciences, 19, 1995–2005, https://doi.org/10.5194/bg-19-1995-2022, https://doi.org/10.5194/bg-19-1995-2022, 2022
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Little is known about the impact of rubber plantations on diversity of the Great Mekong Subregion. In this study, we uncovered latitudinal gradients of plant diversity of rubber plantations. Exotic species with high dominance result in loss of plant diversity of rubber plantations. Not all exotic species would reduce plant diversity of rubber plantations. Much more effort should be made to balance agricultural production with conservation goals in this region.
Ulrike Hiltner, Andreas Huth, and Rico Fischer
Biogeosciences, 19, 1891–1911, https://doi.org/10.5194/bg-19-1891-2022, https://doi.org/10.5194/bg-19-1891-2022, 2022
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Quantifying biomass loss rates due to stem mortality is important for estimating the role of tropical forests in the global carbon cycle. We analyse the consequences of long-term elevated stem mortality for tropical forest dynamics and biomass loss. Based on simulations, we developed a statistical model to estimate biomass loss rates of forests in different successional states from forest attributes. Assuming a doubling of tree mortality, biomass loss increased from 3.2 % yr-1 to 4.5 % yr-1.
Jon Cranko Page, Martin G. De Kauwe, Gab Abramowitz, Jamie Cleverly, Nina Hinko-Najera, Mark J. Hovenden, Yao Liu, Andy J. Pitman, and Kiona Ogle
Biogeosciences, 19, 1913–1932, https://doi.org/10.5194/bg-19-1913-2022, https://doi.org/10.5194/bg-19-1913-2022, 2022
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Although vegetation responds to climate at a wide range of timescales, models of the land carbon sink often ignore responses that do not occur instantly. In this study, we explore the timescales at which Australian ecosystems respond to climate. We identified that carbon and water fluxes can be modelled more accurately if we include environmental drivers from up to a year in the past. The importance of antecedent conditions is related to ecosystem aridity but is also influenced by other factors.
Qing Sun, Valentin H. Klaus, Raphaël Wittwer, Yujie Liu, Marcel G. A. van der Heijden, Anna K. Gilgen, and Nina Buchmann
Biogeosciences, 19, 1853–1869, https://doi.org/10.5194/bg-19-1853-2022, https://doi.org/10.5194/bg-19-1853-2022, 2022
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Drought is one of the biggest challenges for future food production globally. During a simulated drought, pea and barley mainly relied on water from shallow soil depths, independent of different cropping systems.
David Kienle, Anna Walentowitz, Leyla Sungur, Alessandro Chiarucci, Severin D. H. Irl, Anke Jentsch, Ole R. Vetaas, Richard Field, and Carl Beierkuhnlein
Biogeosciences, 19, 1691–1703, https://doi.org/10.5194/bg-19-1691-2022, https://doi.org/10.5194/bg-19-1691-2022, 2022
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Volcanic islands consist mainly of basaltic rocks. Additionally, there are often occurrences of small phonolite rocks differing in color and surface. On La Palma (Canary Islands), phonolites appear to be more suitable for plants than the omnipresent basalts. Therefore, we expected phonolites to be species-rich with larger plant individuals compared to the surrounding basaltic areas. Indeed, as expected, we found more species on phonolites and larger plant individuals in general.
Vera Porwollik, Susanne Rolinski, Jens Heinke, Werner von Bloh, Sibyll Schaphoff, and Christoph Müller
Biogeosciences, 19, 957–977, https://doi.org/10.5194/bg-19-957-2022, https://doi.org/10.5194/bg-19-957-2022, 2022
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The study assesses impacts of grass cover crop cultivation on cropland during main-crop off-season periods applying the global vegetation model LPJmL (V.5.0-tillage-cc). Compared to simulated bare-soil fallowing practices, cover crops led to increased soil carbon content and reduced nitrogen leaching rates on the majority of global cropland. Yield responses of main crops following cover crops vary with location, duration of altered management, crop type, water regime, and tillage practice.
Tzu-Hsuan Tu, Li-Ling Chen, Yi-Ping Chiu, Li-Hung Lin, Li-Wei Wu, Francesco Italiano, J. Bruce H. Shyu, Seyed Naser Raisossadat, and Pei-Ling Wang
Biogeosciences, 19, 831–843, https://doi.org/10.5194/bg-19-831-2022, https://doi.org/10.5194/bg-19-831-2022, 2022
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This investigation of microbial biogeography in terrestrial mud volcanoes (MVs) covers study sites over a geographic distance of up to 10 000 km across the Eurasian continent. It compares microbial community compositions' coupling with geochemical data across a 3D space. We demonstrate that stochastic processes operating at continental scales and environmental filtering at local scales drive the formation of patchy habitats and the pattern of diversification for microbes in terrestrial MVs.
Cited articles
Ad-Hoc-Arbeitsgruppe Boden (der Staatlichen Geologischen Dienste und der
Bundesanstalt für Geowissenschaften und Rohstoffe): Bodenkundliche
Kartieranleitung (KA5), Schweitzerbart'sche
Verlagsbuchhandlung, Stuttgart, 141–142, 2005.
Aiken, G. R.: Fluorescence and dissolved organic matter: a
chemist's perspective, in: Aquatic Organic Matter
Fluorescence, 1st Edn., edited by: Coble, P. G., Lead, J. R., Baker, A., Reynolds, D.
M., and Spencer, R. G., Cambridge environmental chemistry series,
Cambridge University Perss, 35–74, 2014.
Aitkenhead-Peterson, J. A., McDowell, W. H., and Neff, J. C.: Sources,
Production, and Regulation of Allochthonous Dissolved Sources, Production,
and Regulation of Allochthonous Dissolved Organic Matter Inputs to Surface
Waters to Surface Waters, in: Aquatic ecosystems: Interactivity of Dissolved
Organic Matter, edited by: Findlay, S. and Sinsabaugh, R., 25–70, Academic
Press, Burlington, 2003.
Albinsson, B., Li, S., Lundquist, K., and Stomberg, R.: The origin of lignin
fluorescence, J. Mol. Struct., 508, 19–27,
https://doi.org/10.1016/S0022-2860(98)00913-2, 1999.
Amon, R. M. W., Fitznar, H.-P., and Benner, R.: Linkages among the
bioreactivity, chemical composition, and diagenetic state of marine
dissolved organic matter, Limnol. Oceanogr., 46, 287–297,
https://doi.org/10.4319/lo.2001.46.2.0287, 2001.
Arnstadt, T., Hoppe, B., Kahl, T., Kellner, H., Krüger, D., Bauhus, J.,
and Hofrichter, M.: Dynamics of fungal community composition, decomposition
and resulting deadwood properties in logs of Fagus sylvatica, Picea abies
and Pinus sylvestris, Forest Ecol. Manag., 382, 129–142,
https://doi.org/10.1016/j.foreco.2016.10.004, 2016.
Augusto, L., Ranger, J., Binkley, D., and Rothe, A.: Impact of several
common tree species of European temperate forests on soil fertility, Ann.
For. Sci., 59, 233–253, https://doi.org/10.1051/forest:2002020, 2002.
Avneri-Katz, S., Young, R. B., McKenna, A. M., Chen, H., Corilo, Y. E.,
Polubesova, T., Borch, T., and Chefetz, B.: Adsorptive fractionation of
dissolved organic matter (DOM) by mineral soil: Macroscale approach and
molecular insight, Org. Geochem., 103, 113–124,
https://doi.org/10.1016/j.orggeochem.2016.11.004, 2017.
Baetz, U. and Martinoia, E.: Root exudates: the hidden part of plant
defense, Trends Plant Sci., 19, 90–98, https://doi.org/10.1016/j.tplants.2013.11.006,
2014.
Bantle, A., Borken, W., Ellerbrock, R. H., Schulze, E.-D., Weisser, W. W.,
and Matzner, E.: Quantity and quality of dissolved organic carbon released
from coarse woody debris of different tree species in the early phase of
decomposition, Forest Ecol. Manag., 329, 287–294,
https://doi.org/10.1016/j.foreco.2014.06.035, 2014.
Benner, R.: Chapter 3 – Chemical Composition and Reactivity, in:
Biogeochemistry of Marine Dissolved Organic Matter, edited by: Hansell, D. A. and
Carlson, C. A., Academic Press, San Diego, 59–90, 2002.
Bischoff, S., Schwarz, M. T., Siemens, J., Thieme, L., Wilcke, W., and Michalzik, B.:
Properties of dissolved and total organic matter in throughfall, stemflow and forest
floor leachate of central European forests, Biogeosciences, 12, 2695–2706, https://doi.org/10.5194/bg-12-2695-2015, 2015.
Bolan, N. S., Adriano, D. C., Kunhikrishnan, A., James, T., McDowell, R., and
Senesi, N.: Dissolved Organic Matter: Biogeochemistry, Dynamics, and
Environmental Significance in Soils, in: Advances in Agronomy, 1–75,
Academic Press, Burlington, 2011.
Cleveland, C. C., Neff, J. C., Townsend, A. R., and Hood, E.: Composition,
Dynamics, and Fate of Leached Dissolved Organic Matter in Terrestrial
Ecosystems: Results from a Decomposition Experiment, Ecosystems, 7,
175–285, https://doi.org/10.1007/s10021-003-0236-7, 2004.
Coble, P. G.: Characterization of marine and terrestrial DOM in seawater
using excitation-emission matrix spectroscopy, Mar. Chem., 51, 325–346,
https://doi.org/10.1016/0304-4203(95)00062-3, 1996.
Coble, P. G., Lead, J. R., Baker, A., Reynolds, D. M., and Spencer, R. G.
(Eds.): Aquatic Organic Matter Fluorescence, 1st Edn., Cambridge
environmental chemistry series, Cambridge University Press, 2014.
Cuss, C. W. and Guéguen, C.: Distinguishing dissolved organic matter at
its origin: Size and optical properties of leaf-litter leachates,
Chemosphere, 92, 1483–1489, https://doi.org/10.1016/j.chemosphere.2013.03.062, 2013.
D'Andrilli, J., Foreman, C. M., Marshall, A. G., and McKnight, D. M.:
Characterization of IHSS Pony Lake fulvic acid dissolved organic matter by
electrospray ionization Fourier transform ion cyclotron resonance mass
spectrometry and fluorescence spectroscopy, Org. Geochem., 65, 19–28,
https://doi.org/10.1016/j.orggeochem.2013.09.013, 2013.
Dainard, P. G., Guéguen, C., McDonald, N., and Williams, W. J.:
Photobleaching of fluorescent dissolved organic matter in Beaufort Sea and
North Atlantic Subtropical Gyre, Mar. Chem., 177, 630–637,
https://doi.org/10.1016/j.marchem.2015.10.004, 2015.
Don, A. and Kalbitz, K.: Amounts and degradability of dissolved organic
carbon from foliar litter at different decomposition stages, Soil Biol.
Biochem., 37, 2171–2179, https://doi.org/10.1016/j.soilbio.2005.03.019, 2005.
Ervens, B. and Volkamer, R.: Glyoxal processing by aerosol multiphase chemistry:
towards a kinetic modeling framework of secondary organic aerosol formation in aqueous particles, Atmos. Chem. Phys., 10, 8219–8244, https://doi.org/10.5194/acp-10-8219-2010, 2010.
Farmer, D. K., Matsunaga, A., Docherty, K. S., Surratt, J. D., Seinfeld, J.
H., Ziemann, P. J., and Jimenez, J. L.: Response of an aerosol mass
spectrometer to organonitrates and organosulfates and implications for
atmospheric chemistry, P. Natl. Acad. Sci. USA, 107, 6670–6675, https://doi.org/10.1073/pnas.0912340107, 2010.
Fellman, J. B., D'Amore, D. V., and Hood, E.: An evaluation of freezing as a
preservation technique for analyzing dissolved organic C, N and P in surface
water samples, Sci. Total Environ., 392, 305–312,
https://doi.org/10.1016/j.scitotenv.2007.11.027, 2008a.
Fellman, J. B., D'Amore, D. V., Hood, E., and Boone, R. D.: Fluorescence
characteristics and biodegradability of dissolved organic matter in forest
and wetland soils from coastal temperate watersheds in southeast Alaska,
Biogeochemistry, 88, 169–184, https://doi.org/10.1007/s10533-008-9203-x, 2008b.
Fischer, M., Bossdorf, O., Gockel, S., Hänsel, F., Hemp, A.,
Hessenmöller, D., Korte, G., Nieschulze, J., Pfeiffer, S., Prati, D.,
Renner, S., Schöning, I., Schumacher, U., Wells, K., Buscot, F., Kalko,
E. K. V., Linsenmair, K. E., Schulze, E.-D., and Weisser, W. W.: Implementing
large-scale and long-term functional biodiversity research: The Biodiversity
Exploratories, Basic Appl. Ecol., 11, 473–485,
https://doi.org/10.1016/j.baae.2010.07.009, 2010.
Fox, J. and Weisberg, S.: An R Companion to Applied Regression, 2nd Edn.,
Sage, Thousand Oaks, CA, 2011.
Gödde, M., David, M. B., Christ, M. J., Kaupenjohann, M., and Vance, G.
F.: Carbon mobilization from the forest floor under red spruce in the
northeastern U.S.A, Soil Biol. Biochem., 28, 1181–1189,
https://doi.org/10.1016/0038-0717(96)00130-7, 1996.
Goldberg, M. C. and Weiner, E. R.: Fluorescence Spectroscopy in
Environmental and Hydrological Sciences, in: Fluorescence Spectroscopy: New
Methods and Applications, edited by: Wolfbeis, O. S., Springer Berlin Heidelberg,
Berlin, Heidelberg, 213–241, 1993.
Goldmann, K., Schöning, I., Buscot, F., and Wubet, T.: Forest Management
Type Influences Diversity and Community Composition of Soil Fungi across
Temperate Forest Ecosystems, Front. Microbiol., 6, 1300,
https://doi.org/10.3389/fmicb.2015.01300, 2015.
Guggenberger, G., Zech, W., and Schulten, H.-R.: Formation and mobilization
pathways of dissolved organic matter: evidence from chemical structural
studies of organic matter fractions in acid forest floor solutions, Org.
Geochem., 21, 51–66, https://doi.org/10.1016/0146-6380(94)90087-6, 1994.
Hagedorn, F., Saurer, M., and Blaser, P.: A 13C tracer study to identify the
origin of dissolved organic carbon in forested mineral soils, European J.
Soil Sci., 55, 91–100, https://doi.org/10.1046/j.1365-2389.2003.00578.x, 2004.
Hernes, P. J., Bergamaschi, B. A., Eckard, R. S., and Spencer, R. G. M.:
Fluorescence-based proxies for lignin in freshwater dissolved organic
matter, J. Geophys. Res.-Biogeo., 114, G00F03,
https://doi.org/10.1029/2009JG000938, 2009.
Hertkorn, N., Benner, R., Frommberger, M., Schmitt-Kopplin, P., Witt, M.,
Kaiser, K., Kettrup, A., and Hedges, J. I.: Characterization of a major
refractory component of marine dissolved organic matter, Geochim. Cosmochim.
Ac., 70, 2990–3010, https://doi.org/10.1016/j.gca.2006.03.021, 2006.
Hertkorn, N., Harir, M., Cawley, K. M., Schmitt-Kopplin, P., and Jaffé,
R.: Molecular characterization of dissolved organic matter from subtropical
wetlands: a comparative study through the analysis of optical properties, NMR
and FTICR/MS, Biogeosciences, 13, 2257–2277,
https://doi.org/10.5194/bg-13-2257-2016, 2016.
Hothorn, T., Hornik, K., van de Wiel, M. A., and Zeileis, A.: A Lego System
for Conditional Inference, Am. Stat., 60, 257–263, 2006.
Howard, D. H., Stan, J. T. V., Whitetree, A., Zhu, L., and Stubbins, A.:
Interstorm Variability in the Biolability of Tree-Derived Dissolved Organic
Matter (Tree-DOM) in Throughfall and Stemflow, Forests, 9, 236,
https://doi.org/10.3390/f9050236, 2018.
Ide, J., Ohashi, M., Takahashi, K., Sugiyama, Y., Piirainen, S., Kortelainen,
P., Fujitake, N., Yamase, K., Ohte, N., Moritani, M., Hara, M., and
Finér, L.: Spatial variations in the molecular diversity of dissolved
organic matter in water moving through a boreal forest in eastern Finland,
Sci. Rep.-UK, 7, 42102, https://doi.org/10.1038/srep42102, 2017.
Inamdar, S., Finger, N., Singh, S., Mitchell, M., Levia, D., Bais, H.,
Scott, D., and McHale, P.: Dissolved organic matter (DOM) concentration and
quality in a forested mid-Atlantic watershed, USA, Biogeochemistry, 108,
55–76, https://doi.org/10.1007/s10533-011-9572-4, 2012.
Jansen, B., Nierop, K. G. J., and Verstraten, J. M.: Mobility of Fe(II),
Fe(III) and Al in acidic forest soils mediated by dissolved organic matter:
influence of solution pH and metal ∕ organic carbon ratios, Geoderma,
113, 323–340, 2003.
Jansen, B., Nierop, K. G. J., and Verstraten, J. M.: Mechanisms controlling
themobility of dissolved organic matter, aluminium and iron in podzol B
horizons, Eur. J. Soil Sci., 56, 537–550,
https://doi.org/10.1111/j.1365-2389.2004.00686.x, 2005.
Kahl, T. and Bauhus, J.: An index of forest management intensity based on
assessment of harvested tree volume, tree species composition and dead wood
origin, Nat. Conserv., 7, 15–27, https://doi.org/10.3897/natureconservation.7.7281,
2014.
Kahl, T., Mund, M., Bauhus, J., and Schulze, E.-D.: Dissolved Organic Carbon
from European Beech Logs: Patterns of Input to and Retention by Surface
Soil, Ecoscience, 19, 364–373, https://doi.org/10.2980/19-4-3501, 2012.
Kaiser, K. and Guggenberger, G.: The role of DOM sorption to mineral
surfaces in the preservation of organic matter in soils, Org. Geochem., 31,
711–725, https://doi.org/10.1016/S0146-6380(00)00046-2, 2000.
Kaiser, K. and Kalbitz, K.: Cycling downwards – dissolved organic matter in
soils, Soil Biol. Biochem., 52, 29–32, https://doi.org/10.1016/j.soilbio.2012.04.002,
2012.
Kaiser, K., Guggenberger, G., and Zech, W.: Sorption of DOM and DOM
fractions to forest soils, Geoderma, 74, 281–303,
https://doi.org/10.1016/S0016-7061(96)00071-7, 1996.
Kalbitz, K., Schmerwitz, J., Schwesig, D., and Matzner, E.: Biodegradation
of soil-derived dissolved organic matter as related to its properties,
Geoderma, 113, 273–291, https://doi.org/10.1016/S0016-7061(02)00365-8, 2003.
Kim, S., Kramer, R. W., and Hatcher, P. G.: Graphical Method for Analysis of
Ultrahigh-Resolution Broadband Mass Spectra of Natural Organic Matter, the
Van Krevelen Diagram, Anal. Chem., 75, 5336–5344, https://doi.org/10.1021/ac034415p,
2003.
Kim, S., Kaplan, L. A., Benner, R., and Hatcher, P. G.: Hydrogen-deficient
molecules in natural riverine water samples – evidence for the existence of
black carbon in DOM, Mar. Chem., 92, 225–234,
https://doi.org/10.1016/j.marchem.2004.06.042, 2004.
Kindler, R., Siemens, J., Kaiser, K., Walmsley, D. C., Bernhofer, C.,
Buchmann, N., Cellier, P., Eugster, W., Gleixner, G., Grünwald, T., Heim,
A., Ibrom, A., Jones, S. K., Jones, M., Klumpp, K., Kutsch, W., Larsen, K.
S., Lehuger, S., Loubet, B., Mckenzie, R., Moors, E., Osborne, B., Pilegaard,
K., Rebmann, C., Saubders, M., Schmidt, M. I., Schrumpf, M., Seyfferth, J.,
Skiba, U., Soussana, J.-F., Sutton, M. A., Trfs, C., Vowinckel, B., Zeeman,
M. J., and Kaupenjohann, M.: Dissolved carbon leaching from soil is a crucial
component of the net ecosystem carbon balance, Glob. Change Biol., 17,
1167–1185, https://doi.org/10.1111/j.1365-2486.2010.02282.x, 2011.
Klotzbücher, T., Kaiser, K., Filley, T. R., and Kalbitz, K.: Processes
controlling the production of aromatic water-soluble organic matter during
litter decomposition, Soil Biol. Biochem., 67, 133–139,
https://doi.org/10.1016/j.soilbio.2013.08.003, 2013.
Kothawala, D. N., Wachenfeldt, E., Koehler, B., and Tranvik, L. J.:
Selective loss and preservation of lake water dissolved organic matter
fluorescence during long-term dark incubations, Sci. Total Environ., 433,
238–246, https://doi.org/10.1016/j.scitotenv.2012.06.029, 2012.
Kraus, T. C., Dahlgren, R. A., and Zasoski, R. J.: Tannins in nutrient
dynamics of forest ecosystems – a review, Plant Soil, 256, 41–66,
https://doi.org/10.1023/A:1026206511084, 2003.
Lakowicz, J. R.: Principles of Fluorescence Spectroscopy, 3rd Edn., Springer
Science+Business Media, https://doi.org/10.1007/978-0-387-46312-4, 2006.
Lambert, T., Bouillon, S., Darchambeau, F., Massicotte, P., and Borges, A.
V.: Shift in the chemical composition of dissolved organic matter in the
Congo River network, Biogeosciences, 13, 5405–5420,
https://doi.org/10.5194/bg-13-5405-2016, 2016.
Lee, B. H., Mohr, C., Lopez-Hilfiker, F. D., Lutz, A., Hallquist, M., Lee, L,
Romer, P., Cohen, R. C., Iyer, S., Kurten, T., Hu, W. W., Day, D. A.,
Campuzano-Jost, P., Jimenez, J. L., Xu, L., Ng, N. L., Guo, H. Y., Weber, R.
J., Wild, R. J., Brown, S. S., Koss, A., de Gouw, J., Olson, K., Goldstein,
A. H., Seco, R., Kim, S., McAvey, K., Shepson, P. B., Starn, T., Baumann, K.,
Edgerton, E. S., Liu, J. M., Shilling, J. E., Miller, D. O., Brune, W.,
Schobesberger, S., D'Ambro, E. L., and Thornton, J. A.: Highly functionalized
organic nitrates in the southeast United States: Contribution to secondary
organic aerosol and reactive nitrogen budgets, P. Natl. Acad. Sci. USA, 113,
1516–1521, https://doi.org/10.1073/pnas.1508108113, 2016.
Levia, D. F. and Germer, S.: A review of stemflow generation dynamics and
stemflow-environment interactions in forests and shrublands, Rev. Geophys.,
53, 673–714, https://doi.org/10.1002/2015RG000479, 2015.
Levia, D. F., van Stan, J. T., Inamdar S. P., Jarvis, M. T., Mitchell, M.
J., Mage, S. M., Scheick, C. E., and Mchale P. J.: Stemflow and dissolved
organic carbon cycling: temporal variability in concentration, flux, and
UV-Vis spectral metrics in a temperate broadleaved deciduous forest in the
eastern United States, Can. J. Forest Res., 42, 207–216,
https://doi.org/10.1139/x11-173, 2012.
Lindow, S. E. and Brandl, M. T.: Microbiology of the Phyllosphere, Appl.
Environ. Microb., 2003, 1875–1883, 2003.
Lorenz, K., Preston, C. M., Krumrei, S., and Feger, K.-H.: Decomposition of
needle/leaf litter from Scots pine, black cherry, common oak and European
beech at a conurbation forest site, Eur. J. For. Res., 123, 177–188,
https://doi.org/10.1007/s10342-004-0025-7, 2004.
Magnússon, R. Í., Tieteme, A., Cornelissen, J. H., Hefting, M. M.,
and Kalbitz, K.: Tamm Review: Sequestration of carbon from coarse woody
debris in forest soils, Forest Ecol. Manag., 377, 1–15,
https://doi.org/10.1016/j.foreco.2016.06.033, 2016.
Maie, N., Scully, N. M., Pisani, O., and Jaffé, R.: Composition of a
protein-like fluorophore of dissolved organic matter in coastal wetland and
estuarine ecosystems, Water Res., 41, 563–570,
https://doi.org/10.1016/j.watres.2006.11.006, 2007.
Marschner, B. and Kalbitz, K.: Controls of bioavailability and
biodegradability of dissolved organic matter in soils, Geoderma, 113,
211–235, https://doi.org/10.1016/S0016-7061(02)00362-2, 2003.
MATLAB: MATLAB and Statistics Toolbox, The MathWorks, Inc., Natick,
Massachusetts, USA, 2015.
Michalzik, B., Kalbitz, K., Park, J.-H., Solinger, S., and Matzner, E.:
Fluxes and concentrations of dissolved organic carbon and nitrogen – a
synthesis for temperate forests, Biogeochemistry, 52, 173–205,
https://doi.org/10.1023/A:1006441620810, 2001.
Michalzik, B., Levia, D. F., Bischoff, S., Näthe, K., and Richter, S.:
Effects of aphid infestation on the biogeochemistry of the water routed
through European beech (Fagus sylvatica L.) saplings,
Biogeochemistry, 129, 197–214, https://doi.org/10.1007/s10533-016-0228-2, 2016.
Moore, T. R.: Dissolved organic carbon in a northern boreal landscape, Global
Biogeochem. Cy., 17, 1109, https://doi.org/10.1029/2003GB002050, 2003.
Müller, T., Strobel, K., and Ulrich, A.: Microorganisms in the
phyllosphere of temperate forest ecosystems in a changing environment, in:
Microbial Ecology of Aerial Plant Surfaces, edited by: Bailey, M. J., Lilley,
A. K., Timms-Wilson, T. M., and Spencer-Phillips, P. T. N., CAB
International, Wallingford, UK, 51–66, 2006.
Murphy, K. R., Butler, K. D., Spencer, R. G. M., Stedmon, C. A., Boehme, J.
R., and Aiken, G. R.: Measurement of Dissolved Organic Matter Fluorescence
in Aquatic Environments: An Interlaboratory Comparison, Environ. Sci.
Technol., 44, 9405–9412, https://doi.org/10.1021/es102362t, 2010.
Murphy, K. R., Hambly, A., Singh, S., Henderson, R. K., Baker, A., Stuetz,
R., and Khan, S. J.: Organic Matter Fluorescence in Municipal Water
Recycling Schemes: Toward a Unified PARAFAC Model, Environ. Sci. Technol.,
45, 2909–2916, https://doi.org/10.1021/es103015e, 2011.
Murphy, K. R., Stedmon, C. A., Graeber, D., and Bro, R.: Fluorescence
spectroscopy and multi-way techniques. PARAFAC, Anal. Methods-UK, 5, 6557,
https://doi.org/10.1039/c3ay41160e, 2013.
Murphy, K. R., Stedmon, C. A., Wenig, P., and Bro, R.: OpenFluor – an online
spectral library of auto-fluorescence by organic compounds in the
environment, Anal. Methods-UK, 6, 658–661, https://doi.org/10.1039/C3AY41935E, 2014.
Nierop, K. G. J., Jansen, B., and Verstraten, J. M.: Dissolved organic
matter, aluminium and iron interactions: precipitation induced by
metal/carbon ratio, pH and competition, Sci. Total. Environ., 300, 201–211,
2002.
Ng, N. L., Brown, S. S., Archibald, A. T., Atlas, E., Cohen, R. C., Crowley,
J. N., Day, D. A., Donahue, N. M., Fry, J. L., Fuchs, H., Griffin, R. J.,
Guzman, M. I., Herrmann, H., Hodzic, A., Iinuma, Y., Jimenez, J. L.,
Kiendler-Scharr, A., Lee, B. H., Luecken, D. J., Mao, J., McLaren, R.,
Mutzel, A., Osthoff, H. D., Ouyang, B., Picquet-Varrault, B., Platt, U., Pye,
H. O. T., Rudich, Y., Schwantes, R. H., Shiraiwa, M., Stutz, J., Thornton, J.
A., Tilgner, A., Williams, B. J., and Zaveri, R. A.: Nitrate radicals and
biogenic volatile organic compounds: oxidation, mechanisms, and organic
aerosol, Atmos. Chem. Phys., 17, 2103–2162,
https://doi.org/10.5194/acp-17-2103-2017, 2017.
Ohno, T.: Fluorescence Inner-Filtering Correction for Determining the
Humification Index of Dissolved Organic Matter, Environ. Sci. Technol., 36,
742–746, https://doi.org/10.1021/es0155276, 2002.
Oksanen, J., Blanchet, F. G., Kindt, R., Legendre, P., Minchin, P. R.,
O'Hara, R. B., Simpson, G. L., Solymos, P., Stevens, M. H. H., and Wagner,
H.: vegan: Community Ecology Package, R package version 2.2–1, available at:
http://CRAN.R-project.org/package=vegan (last access: 12 November
2015), 2015.
Osburn, C. L., Boyd, T. J., Montgomery, M. T., Bianchi, T. S., Coffin, R. B.,
and Paerl, H. W.: Optical Proxies for Terrestrial Dissolved Organic Matter in
Estuaries and Coastal Waters, Front. Mar. Sci., 2, 127,
https://doi.org/10.3389/fmars.2015.00127, 2016.
Peichl, M., Moore, T. R., Arain, M. A., Dalva, M., Brodkey, D., and McLaren,
J.: Concentrations and fluxes of dissolved organic carbon in an age-sequence
of white pine forests in Southern Ontario, Canada, Biogeochemistry, 86,
1–17, https://doi.org/10.1007/s10533-007-9138-7, 2007.
Qualls, R. and Haines, L. B.: Biodegradability of Dissolved Organic Matter in
Forest Throughfall, Soil Solution, and Stream Water, Soil Sci. Soc. Am. J.,
56, 578–586, 1992.
R Core Team: R: A language and environment for, R Foundation for Statistical
Computing, Vienna, Austria, 2015.
R Core Team: R: A Language and Environment for Statistical Computing, Vienna,
Austria, available at: https://www.R-project.org/ (last access:
21 March 2019), 2018.
Santín, C., Yamashita, Y., Otero, X. L., Álvarez, M., and
Jaffé, R.: Characterizing humic substances from estuarine soils and
sediments by excitation-emission matrix spectroscopy and parallel factor
analysis, Biogeochemistry, 96, 131–147, https://doi.org/10.1007/s10533-009-9349-1,
2009.
Santos, P., Otero, M., Santos, E., and Duarte, A. C.: Molecular fluorescence
analysis of rainwater: Effects of sample preservation, Talanta, 82,
1616–1621, https://doi.org/10.1016/j.talanta.2010.07.048, 2010.
Shutova, Y., Baker, A., Bridgeman, J., and Henderson, R. K.: Spectroscopic
characterisation of dissolved organic matter changes in drinking water
treatment: From 5PARAFAC6 analysis to online monitoring wavelengths, Water
Res., 54, 159–169, https://doi.org/10.1016/j.watres.2014.01.053, 2014.
Sleighter, R. L. and Hatcher, P. G.: The application of electrospray
ionization coupled to ultrahigh resolution mass spectrometry for the
molecular characterization of natural organic matter, J. Mass Spectrom., 42,
559–574, https://doi.org/10.1002/jms.1221, 2007.
Sleighter, R. L., Liu, Z., Xue, J., and Hatcher, P. G.: Multivariate
Statistical Approaches for the Characterization of Dissolved Organic Matter
Analyzed by Ultrahigh Resolution Mass Spectrometry, Environ. Sci. Technol.,
44, 7576–7582, https://doi.org/10.1021/es1002204, 2010.
Stedmon, C. A., Markager, S., and Bro, R.: Tracing dissolved organic matter
in aquatic environments using a new approach to fluorescence spectroscopy,
Mar. Chem., 82, 239–254, https://doi.org/10.1016/S0304-4203(03)00072-0, 2003.
Stenson, A. C., Marshall, A. G., and Cooper, W. T.: Exact Masses and
Chemical Formulas of Individual Suwannee River Fulvic Acids from Ultrahigh
Resolution Electrospray Ionization Fourier Transform Ion Cyclotron Resonance
Mass Spectra, Anal. Chem., 75, 1275–1284, https://doi.org/10.1021/ac026106p, 2003.
Stubbins, A., Silva, L. M., Dittmar, T., and van Stan, J. T.: Molecular and
Optical Properties of Tree-Derived Dissolved Organic Matter in Throughfall
and Stemflow from Live Oaks and Eastern Red Cedar, Front. Earth Sci., 5, 22,
https://doi.org/10.3389/feart.2017.00022, 2017.
Stubbins, A., Spencer, R. G., Chen, H., Hatcher, P. G., Mopper, K., Hernes,
P. J., Mwamba, V. L., Mangangu, A. M., Wabakanghanzi, J. N., and Six, J.:
Illuminated darkness: Molecular signatures of Congo River dissolved organic
matter and its photochemical alteration as revealed by ultrahigh precision
mass spectrometry, Limnol. Oceanogr., 55, 1467–1477,
https://doi.org/10.4319/lo.2010.55.4.1467, 2010.
Tfaily, M. M., Corbett, J. E., Wilson, R., Chanton, J. P., Glaser, P. H.,
Cawley, K. M., Jaffé, R., and Cooper, W. T.: Utilization of
PARAFAC-Modeled Excitation-Emission Matrix (EEM) Fluorescence Spectroscopy
to Identify Biogeochemical Processing of Dissolved Organic Matter in a
Northern Peatland, Photochem. Photobiol., 91, 684–695,
https://doi.org/10.1111/php.12448, 2015.
Thieme, L., Graeber, D., Kaupenjohann, M., and Siemens, J.: Fast-freezing
with liquid nitrogen preserves bulk dissolved organic matter concentrations,
but not its composition, Biogeosciences, 13, 4697–4705,
https://doi.org/10.5194/bg-13-4697-2016, 2016.
Thieme, L., Graeber, D., Hofmann, D., Bischoff, S., Schwarz, M. T., Steffen,
B., Meyer, U.-N., Kaupenjohann, M., Wilke, W., Michalzik, B., and Siemens,
J.: Dissolved organic matter characteristics of deciduous and coniferous
forests with variable management: different at the source, aligned in the
soil, Generic Research Data, https://doi.org/10.14279/depositonce-8321, 2019.
Thruston Jr., A. D.: A Fluorometric Method for the Determination of Lignin
Sulfonates in Natural Waters, Water Pollution Control Federation, 42,
1551–1555, 1970.
Tückmantel, T., Leuschner, C., Preusser, S., Kandeler, E., Angst, G.,
Mueller, C. W., and Meier, I. C.: Root exudation patterns in a beech forest:
Dependence on soil depth, root morphology, and environment, Soil Biol.
Biochem., 107, 188–197, 2017.
van Dam, N. M. and Bouwmeester, H. J.: Metabolomics in the Rhizosphere:
Tapping into Belowground Chemical Communication, Trends Plant Sci., 21,
256–265, https://doi.org/10.1016/j.tplants.2016.01.008, 2016.
van Krevelen, D. W.: Graphical-Statistical Method for the Study of Structure
and Reaction Processes of Coal, Fuel, 29, 228–269, 1950.
Van Stan, J. T. and Stubbins, A.: Tree-DOM: Dissolved organic matter in
throughfall and stemflow, Limnol. Oceanogr., 3, 199–214,
https://doi.org/10.1002/lol2.10059, 2018.
Volk, C. J., Volk, C. B., and Kaplan, L. A.: Chemical composition of
biodegradable dissolved organic matter in streamwater, Limnol. Oceanogr.,
42, 39–44, https://doi.org/10.4319/lo.1997.42.1.0039, 1997.
Weishaar, J. L., Aiken, G. R., Bergamaschi, B. A., Fram, M. S., Fujii, R.,
and Mopper, K.:
Evaluation of Specific Ultraviolet Absorbance as an Indicator of the Chemical Composition and Reactivity of Dissolved Organic Carbon,
Environ. Sci. Technol., 37, 4702–4708, https://doi.org/10.1021/es030360x, 2003.
Wickland, K. P., Neff, J. C., and Aiken, G. R.: Dissolved organic carbon in
Alaskan boreal forest: Sources, chemical characteristics, and
biodegradability, Ecosystems, 10, 1323–1340, https://doi.org/10.1007/s10021-007-9101-4,
2007.
Yamashita, Y., Maie, N., Briceño, H., and Jaffé, R.: Optical
characterization of dissolved organic matter in tropical rivers of the
Guayana Shield, Venezuela, J. Geophys. Res.-Biogeo., 115, G00F10,
https://doi.org/10.1029/2009JG000987, 2010.
Yano, Y., McDowell, W. H., and Aber, J. D.: Biodegradable dissolved organic
carbon in forest soil solution and effects of chronic nitrogen deposition,
Soil Biol. Biochem., 32, 1743–1751, https://doi.org/10.1016/S0038-0717(00)00092-4,
2000.
Yu, H., Liang, H., Qu, F., Han, Z.-s., Shao, S., Chang, H., and Li, G.:
Impact of dataset diversity on accuracy and sensitivity of parallel factor
analysis model of dissolved organic matter fluorescence excitation-emission
matrix, Sci. Rep.-UK, 5, 10207, https://doi.org/10.1038/srep10207, 2015.
Short summary
To improve our understanding of the effects of tree species selection and management intensity on dissolved organic matter (DOM), we studied solution samples along the water flow path through forests with spectroscopic methods and biodegradation tests. There are distinct changes in DOM composition and biodegradability following the water path. Aboveground DOM was influenced by tree species selection but not by management intensity. Differences became aligned in mineral soil.
To improve our understanding of the effects of tree species selection and management intensity...
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