Articles | Volume 19, issue 15
https://doi.org/10.5194/bg-19-3699-2022
© Author(s) 2022. 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-19-3699-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Aug 2022
Research article |
| 09 Aug 2022
| 09 Aug 2022
The effect of static chamber base on N2O flux in drip irrigation
Institute of Soil, Water and Environmental Sciences, Agricultural
Research Organization (ARO), Volcani Institute, 68 HaMacabim Rd. P.O Box
15159, Rishon Lezion 7505101, Israel
Asher Bar-Tal
Institute of Soil, Water and Environmental Sciences, Agricultural
Research Organization (ARO), Volcani Institute, 68 HaMacabim Rd. P.O Box
15159, Rishon Lezion 7505101, Israel
Alon Gal
Institute of Soil, Water and Environmental Sciences, Agricultural
Research Organization (ARO), Volcani Institute, 68 HaMacabim Rd. P.O Box
15159, Rishon Lezion 7505101, Israel
The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan
University, Ramat Gan, Ramat-Gan 52900, Israel
Shmulik P. Friedman
Institute of Soil, Water and Environmental Sciences, Agricultural
Research Organization (ARO), Volcani Institute, 68 HaMacabim Rd. P.O Box
15159, Rishon Lezion 7505101, Israel
David Russo
Institute of Soil, Water and Environmental Sciences, Agricultural
Research Organization (ARO), Volcani Institute, 68 HaMacabim Rd. P.O Box
15159, Rishon Lezion 7505101, Israel
Related authors
Shahar Baram, Asher Bar-Tal, Anna Beriozkin, Roee Katzir, Alon Gal, and David Russo
EGUsphere, https://doi.org/10.5194/egusphere-2024-2140, https://doi.org/10.5194/egusphere-2024-2140, 2024
Short summary
Short summary
We evaluate the impact of scoria-filled aeration trenches on N2O and CO2 emissions from a treated wastewater (TWW) irrigated orchard, using three years of field monitoring and 3-D numerical simulations. We show that trenches may increase the N2O fluxes year-round, and that filling them with hydraulically optimal soil may increase water uptake but concomitantly increase the N2O fluxes. Improved growth by the trees may balance the increased N2O emissions from the trenches.
Shahar Baram, Asher Bar-Tal, Anna Beriozkin, Roee Katzir, Alon Gal, and David Russo
EGUsphere, https://doi.org/10.5194/egusphere-2024-2140, https://doi.org/10.5194/egusphere-2024-2140, 2024
Short summary
Short summary
We evaluate the impact of scoria-filled aeration trenches on N2O and CO2 emissions from a treated wastewater (TWW) irrigated orchard, using three years of field monitoring and 3-D numerical simulations. We show that trenches may increase the N2O fluxes year-round, and that filling them with hydraulically optimal soil may increase water uptake but concomitantly increase the N2O fluxes. Improved growth by the trees may balance the increased N2O emissions from the trenches.
Related subject area
Biogeochemistry: Greenhouse Gases
Interannual and seasonal variability of the air–sea CO2 exchange at Utö in the coastal region of the Baltic Sea
CO2 emissions of drained coastal peatlands in the Netherlands and potential emission reduction by water infiltration systems
Influence of wind strength and direction on diffusive methane fluxes and atmospheric methane concentrations above the North Sea
Using eddy covariance observations to determine the carbon sequestration characteristics of subalpine forests in the Qinghai–Tibet Plateau
Isotopomer labeling and oxygen dependence of hybrid nitrous oxide production
The emission of CO from tropical rainforest soils
Drought disrupts atmospheric carbon uptake in a Mediterranean saline lake
Modelling CO2 and N2O emissions from soils in silvopastoral systems of the West African Sahelian band
A case study on topsoil removal and rewetting for paludiculture: effect on biogeochemistry and greenhouse gas emissions from Typha latifolia, Typha angustifolia, and Azolla filiculoides
Assessing improvements in global ocean pCO2 machine learning reconstructions with Southern Ocean autonomous sampling
Timescale dependence of airborne fraction and underlying climate–carbon-cycle feedbacks for weak perturbations in CMIP5 models
Technical note: Preventing CO2 overestimation from mercuric or copper(II) chloride preservation of dissolved greenhouse gases in freshwater samples
Exploring temporal and spatial variation of nitrous oxide flux using several years of peatland forest automatic chamber data
Diurnal versus spatial variability of greenhouse gas emissions from an anthropogenically modified lowland river in Germany
Regional assessment and uncertainty analysis of carbon and nitrogen balances at cropland scale using the ecosystem model LandscapeDNDC
Physicochemical Perturbation Increases Nitrous Oxide Production in Soils and Sediments
Resolving heterogeneous fluxes from tundra halves the growing season carbon budget
Seasonal dynamics and regional distribution patterns of CO2 and CH4 in the north-eastern Baltic Sea
Carbon degradation and mobilisation potentials of thawing permafrost peatlands in Northern Norway
Tidal influence on carbon dioxide and methane fluxes from tree stems and soils in mangrove forests
Lawns and meadows in urban green space – a comparison from perspectives of greenhouse gases, drought resilience and plant functional types
Large contribution of soil N2O emission to the global warming potential of a large-scale oil palm plantation despite changing from conventional to reduced management practices
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Spatial and temporal variability of methane emissions and environmental conditions in a hyper-eutrophic fishpond
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Carbon dioxide and methane fluxes from mounds of African fungus-growing termites
Diel and seasonal methane dynamics in the shallow and turbulent Wadden Sea
Technical note: Skirt chamber – an open dynamic method for the rapid and minimally intrusive measurement of greenhouse gas emissions from peatlands
Seasonal variability of nitrous oxide concentrations and emissions in a temperate estuary
Reviews and syntheses: Recent advances in microwave remote sensing in support of terrestrial carbon cycle science in Arctic–boreal regions
Simulated methane emissions from Arctic ponds are highly sensitive to warming
Water-table-driven greenhouse gas emission estimates guide peatland restoration at national scale
Relationships between greenhouse gas production and landscape position during short-term permafrost thaw under anaerobic conditions in the Lena Delta
Carbon emissions and radiative forcings from tundra wildfires in the Yukon–Kuskokwim River Delta, Alaska
Carbon monoxide (CO) cycling in the Fram Strait, Arctic Ocean
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Carbon emission and export from the Ket River, western Siberia
Evaluation of wetland CH4 in the Joint UK Land Environment Simulator (JULES) land surface model using satellite observations
Greenhouse gas fluxes in mangrove forest soil in an Amazon estuary
Temporal patterns and drivers of CO2 emission from dry sediments in a groyne field of a large river
Effects of water table level and nitrogen deposition on methane and nitrous oxide emissions in an alpine peatland
Highest methane concentrations in an Arctic river linked to local terrestrial inputs
Seasonal study of the small-scale variability in dissolved methane in the western Kiel Bight (Baltic Sea) during the European heatwave in 2018
Trace gas fluxes from tidal salt marsh soils: implications for carbon–sulfur biogeochemistry
Spatial and temporal variation in δ13C values of methane emitted from a hemiboreal mire: methanogenesis, methanotrophy, and hysteresis
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Martti Honkanen, Mika Aurela, Juha Hatakka, Lumi Haraguchi, Sami Kielosto, Timo Mäkelä, Jukka Seppälä, Simo-Matti Siiriä, Ken Stenbäck, Juha-Pekka Tuovinen, Pasi Ylöstalo, and Lauri Laakso
Biogeosciences, 21, 4341–4359, https://doi.org/10.5194/bg-21-4341-2024, https://doi.org/10.5194/bg-21-4341-2024, 2024
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The exchange of CO2 between the sea and the atmosphere was studied in the Archipelago Sea, Baltic Sea, in 2017–2021, using an eddy covariance technique. The sea acted as a net source of CO2 with an average yearly emission of 27.1 gC m-2 yr-1, indicating that the marine ecosystem respired carbon that originated elsewhere. The yearly CO2 emission varied between 18.2–39.2 gC m-2 yr-1, mostly due to the yearly variation of ecosystem carbon uptake.
Ralf C. H. Aben, Daniël van de Craats, Jim Boonman, Stijn H. Peeters, Bart Vriend, Coline C. F. Boonman, Ype van der Velde, Gilles Erkens, and Merit van den Berg
Biogeosciences, 21, 4099–4118, https://doi.org/10.5194/bg-21-4099-2024, https://doi.org/10.5194/bg-21-4099-2024, 2024
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Drained peatlands cause high CO2 emissions. We assessed the effectiveness of subsurface water infiltration systems (WISs) in reducing CO2 emissions related to increases in water table depth (WTD) on 12 sites for up to 4 years. Results show WISs markedly reduced emissions by 2.1 t CO2-C ha-1 yr-1. The relationship between the amount of carbon above the WTD and CO2 emission was stronger than the relationship between WTD and emission. Long-term monitoring is crucial for accurate emission estimates.
Ingeborg Bussmann, Eric P. Achterberg, Holger Brix, Nicolas Brüggemann, Götz Flöser, Claudia Schütze, and Philipp Fischer
Biogeosciences, 21, 3819–3838, https://doi.org/10.5194/bg-21-3819-2024, https://doi.org/10.5194/bg-21-3819-2024, 2024
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Methane (CH4) is an important greenhouse gas and contributes to climate warming. However, the input of CH4 from coastal areas to the atmosphere is not well defined. Dissolved and atmospheric CH4 was determined at high spatial resolution in or above the North Sea. The atmospheric CH4 concentration was mainly influenced by wind direction. With our detailed study on the spatial distribution of CH4 fluxes we were able to provide a detailed and more realistic estimation of coastal CH4 fluxes.
Niu Zhu, Jinniu Wang, Dongliang Luo, Xufeng Wang, Cheng Shen, and Ning Wu
Biogeosciences, 21, 3509–3522, https://doi.org/10.5194/bg-21-3509-2024, https://doi.org/10.5194/bg-21-3509-2024, 2024
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Our study delves into the vital role of subalpine forests in the Qinghai–Tibet Plateau as carbon sinks in the context of climate change. Utilizing advanced eddy covariance systems, we uncover their significant carbon sequestration potential, observing distinct seasonal patterns influenced by temperature, humidity, and radiation. Notably, these forests exhibit robust carbon absorption, with potential implications for global carbon balance.
Colette L. Kelly, Nicole M. Travis, Pascale Anabelle Baya, Claudia Frey, Xin Sun, Bess B. Ward, and Karen L. Casciotti
Biogeosciences, 21, 3215–3238, https://doi.org/10.5194/bg-21-3215-2024, https://doi.org/10.5194/bg-21-3215-2024, 2024
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Nitrous oxide, a potent greenhouse gas, accumulates in regions of the ocean that are low in dissolved oxygen. We used a novel combination of chemical tracers to determine how nitrous oxide is produced in one of these regions, the eastern tropical North Pacific Ocean. Our experiments showed that the two most important sources of nitrous oxide under low-oxygen conditions are denitrification, an anaerobic process, and a novel “hybrid” process performed by ammonia-oxidizing archaea.
Hella van Asperen, Thorsten Warneke, Alessandro Carioca de Araújo, Bruce Forsberg, Sávio José Filgueiras Ferreira, Thomas Röckmann, Carina van der Veen, Sipko Bulthuis, Leonardo Ramos de Oliveira, Thiago de Lima Xavier, Jailson da Mata, Marta de Oliveira Sá, Paulo Ricardo Teixeira, Julie Andrews de França e Silva, Susan Trumbore, and Justus Notholt
Biogeosciences, 21, 3183–3199, https://doi.org/10.5194/bg-21-3183-2024, https://doi.org/10.5194/bg-21-3183-2024, 2024
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Carbon monoxide (CO) is regarded as an important indirect greenhouse gas. Soils can emit and take up CO, but, until now, uncertainty remains as to which process dominates in tropical rainforests. We present the first soil CO flux measurements from a tropical rainforest. Based on our observations, we report that tropical rainforest soils are a net source of CO. In addition, we show that valley streams and inundated areas are likely additional hot spots of CO in the ecosystem.
Ihab Alfadhel, Ignacio Peralta-Maraver, Isabel Reche, Enrique P. Sánchez-Cañete, Sergio Aranda-Barranco, Eva Rodríguez-Velasco, Andrew S. Kowalski, and Penélope Serrano-Ortiz
EGUsphere, https://doi.org/10.5194/egusphere-2024-1562, https://doi.org/10.5194/egusphere-2024-1562, 2024
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Inland saline lakes are crucial in the global carbon cycle, but increased droughts may alter their carbon exchange capacity. We measured CO2 and CH4 fluxes in a Mediterranean saline lake using the Eddy Covariance method under dry and wet conditions. We found the lake acts as a carbon sink during wet periods but not during droughts. These results highlight the importance of saline lakes in carbon sequestration and their vulnerability to climate change-induced droughts.
Yélognissè Agbohessou, Claire Delon, Manuela Grippa, Eric Mougin, Daouda Ngom, Espoir Koudjo Gaglo, Ousmane Ndiaye, Paulo Salgado, and Olivier Roupsard
Biogeosciences, 21, 2811–2837, https://doi.org/10.5194/bg-21-2811-2024, https://doi.org/10.5194/bg-21-2811-2024, 2024
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Emissions of greenhouse gases in the Sahel are not well represented because they are considered weak compared to the rest of the world. However, natural areas in the Sahel emit carbon dioxide and nitrous oxides, which need to be assessed because of extended surfaces. We propose an assessment of such emissions in Sahelian silvopastoral systems and of how they are influenced by environmental characteristics. These results are essential to inform climate change strategies in the region.
Merit van den Berg, Thomas M. Gremmen, Renske J. E. Vroom, Jacobus van Huissteden, Jim Boonman, Corine J. A. van Huissteden, Ype van der Velde, Alfons J. P. Smolders, and Bas P. van de Riet
Biogeosciences, 21, 2669–2690, https://doi.org/10.5194/bg-21-2669-2024, https://doi.org/10.5194/bg-21-2669-2024, 2024
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Drained peatlands emit 3 % of the global greenhouse gas emissions. Paludiculture is a way to reduce CO2 emissions while at the same time generating an income for landowners. The side effect is the potentially high methane emissions. We found very high methane emissions for broadleaf cattail compared with narrowleaf cattail and water fern. The rewetting was, however, effective to stop CO2 emissions for all species. The highest potential to reduce greenhouse gas emissions had narrowleaf cattail.
Thea H. Heimdal, Galen A. McKinley, Adrienne J. Sutton, Amanda R. Fay, and Lucas Gloege
Biogeosciences, 21, 2159–2176, https://doi.org/10.5194/bg-21-2159-2024, https://doi.org/10.5194/bg-21-2159-2024, 2024
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Measurements of ocean carbon are limited in time and space. Machine learning algorithms are therefore used to reconstruct ocean carbon where observations do not exist. Improving these reconstructions is important in order to accurately estimate how much carbon the ocean absorbs from the atmosphere. In this study, we find that a small addition of observations from the Southern Ocean, obtained by autonomous sampling platforms, could significantly improve the reconstructions.
Guilherme L. Torres Mendonça, Julia Pongratz, and Christian H. Reick
Biogeosciences, 21, 1923–1960, https://doi.org/10.5194/bg-21-1923-2024, https://doi.org/10.5194/bg-21-1923-2024, 2024
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We study the timescale dependence of airborne fraction and underlying feedbacks by a theory of the climate–carbon system. Using simulations we show the predictive power of this theory and find that (1) this fraction generally decreases for increasing timescales and (2) at all timescales the total feedback is negative and the model spread in a single feedback causes the spread in the airborne fraction. Our study indicates that those are properties of the system, independently of the scenario.
François Clayer, Jan Erik Thrane, Kuria Ndungu, Andrew King, Peter Dörsch, and Thomas Rohrlack
Biogeosciences, 21, 1903–1921, https://doi.org/10.5194/bg-21-1903-2024, https://doi.org/10.5194/bg-21-1903-2024, 2024
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Determination of dissolved greenhouse gas (GHG) in freshwater allows us to estimate GHG fluxes. Mercuric chloride (HgCl2) is used to preserve water samples prior to GHG analysis despite its environmental and health impacts and interferences with water chemistry in freshwater. Here, we tested the effects of HgCl2, two substitutes and storage time on GHG in water from two boreal lakes. Preservation with HgCl2 caused overestimation of CO2 concentration with consequences for GHG flux estimation.
Helena Rautakoski, Mika Korkiakoski, Jarmo Mäkelä, Markku Koskinen, Kari Minkkinen, Mika Aurela, Paavo Ojanen, and Annalea Lohila
Biogeosciences, 21, 1867–1886, https://doi.org/10.5194/bg-21-1867-2024, https://doi.org/10.5194/bg-21-1867-2024, 2024
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Current and future nitrous oxide (N2O) emissions are difficult to estimate due to their high variability in space and time. Several years of N2O fluxes from drained boreal peatland forest indicate high importance of summer precipitation, winter temperature, and snow conditions in controlling annual N2O emissions. The results indicate increasing year-to-year variation in N2O emissions in changing climate with more extreme seasonal weather conditions.
Matthias Koschorreck, Norbert Kamjunke, Uta Koedel, Michael Rode, Claudia Schuetze, and Ingeborg Bussmann
Biogeosciences, 21, 1613–1628, https://doi.org/10.5194/bg-21-1613-2024, https://doi.org/10.5194/bg-21-1613-2024, 2024
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We measured the emission of carbon dioxide (CO2) and methane (CH4) from different sites at the river Elbe in Germany over 3 days to find out what is more important for quantification: small-scale spatial variability or diurnal temporal variability. We found that CO2 emissions were very different between day and night, while CH4 emissions were more different between sites. Dried out river sediments contributed to CO2 emissions, while the side areas of the river were important CH4 sources.
Odysseas Sifounakis, Edwin Haas, Klaus Butterbach-Bahl, and Maria P. Papadopoulou
Biogeosciences, 21, 1563–1581, https://doi.org/10.5194/bg-21-1563-2024, https://doi.org/10.5194/bg-21-1563-2024, 2024
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We performed a full assessment of the carbon and nitrogen cycles of a cropland ecosystem. An uncertainty analysis and quantification of all carbon and nitrogen fluxes were deployed. The inventory simulations include greenhouse gas emissions of N2O, NH3 volatilization and NO3 leaching from arable land cultivation in Greece. The inventory also reports changes in soil organic carbon and nitrogen stocks in arable soils.
Nathaniel B. Weston, Cynthia Troy, Patrick J. Kearns, Jennifer L. Bowen, William Porubsky, Christelle Hyacinthe, Christof Meile, Philippe Van Cappellen, and Samantha B. Joye
EGUsphere, https://doi.org/10.5194/egusphere-2024-448, https://doi.org/10.5194/egusphere-2024-448, 2024
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Nitrous oxide (N2O) is a potent greenhouse and ozone depleting gas produced largely from microbial nitrogen cycling processes, and human activities have resulted in increases in atmospheric N2O. We investigate the role of physical and chemical disturbance to soils and sediments. We demonstrate that the disturbance increases N2O production, the microbial community adapts to disturbance over time, an initial disturbance appears to confer resilience to subsequent disturbance.
Sarah M. Ludwig, Luke Schiferl, Jacqueline Hung, Susan M. Natali, and Roisin Commane
Biogeosciences, 21, 1301–1321, https://doi.org/10.5194/bg-21-1301-2024, https://doi.org/10.5194/bg-21-1301-2024, 2024
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Landscapes are often assumed to be homogeneous when using eddy covariance fluxes, which can lead to biases when calculating carbon budgets. In this study we report eddy covariance carbon fluxes from heterogeneous tundra. We used the footprints of each flux observation to unmix the fluxes coming from components of the landscape. We identified and quantified hot spots of carbon emissions in the landscape. Accurately scaling with landscape heterogeneity yielded half as much regional carbon uptake.
Silvie Lainela, Erik Jacobs, Stella-Theresa Stoicescu, Gregor Rehder, and Urmas Lips
EGUsphere, https://doi.org/10.5194/egusphere-2024-598, https://doi.org/10.5194/egusphere-2024-598, 2024
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We evaluate the variability of carbon dioxide and methane in the surface layer of the north-eastern basins of the Baltic Sea in 2018. We show that the shallower coastal areas have considerably higher spatial variability and seasonal amplitude of surface layer pCO2 and cCH4 than measured in the Baltic Sea offshore areas. Despite this high variability, caused mostly by coastal physical processes, the average annual air-sea CO2 fluxes differed only marginally between the sub-basins.
Sigrid Trier Kjær, Sebastian Westermann, Nora Nedkvitne, and Peter Dörsch
EGUsphere, https://doi.org/10.5194/egusphere-2024-562, https://doi.org/10.5194/egusphere-2024-562, 2024
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Permafrost peatlands are thawing due to climate change, releasing large quantities of carbon that degrades upon thawing and is released as CO2, CH4, or dissolved organic carbon (DOC). We incubated thawed Norwegian permafrost peat plateaus and thermokarst pond sediment found next to permafrost for up to 350 days to measure carbon loss. CO2 production was largest initially, while CH4 production increased over time. The largest carbon loss was measured at the top of the peat plateau core as DOC.
Zhao-Jun Yong, Wei‐Jen Lin, Chiao-Wen Lin, and Hsing-Juh Lin Lin
EGUsphere, https://doi.org/10.5194/egusphere-2024-533, https://doi.org/10.5194/egusphere-2024-533, 2024
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This study is the first to simultaneously measure mangrove CH4 emissions from both stems and soils throughout tidal cycles. The stems served as both net CO2 and CH4 sources. Compared to those of the soils, the stems exhibited markedly lower CH4 emissions, but no difference in CO2 emissions. Sampling only during low tides might overestimate the stem CO2 and CH4 emissions on a diurnal scale. This study also highlights species distinctness (with pneumatophores) in the emissions.
Justine Trémeau, Beñat Olascoaga, Leif Backman, Esko Karvinen, Henriikka Vekuri, and Liisa Kulmala
Biogeosciences, 21, 949–972, https://doi.org/10.5194/bg-21-949-2024, https://doi.org/10.5194/bg-21-949-2024, 2024
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We studied urban lawns and meadows in the Helsinki metropolitan area, Finland. We found that meadows are more resistant to drought events but that they do not increase carbon sequestration compared with lawns. Moreover, the transformation from lawns to meadows did not demonstrate any negative climate effects in terms of greenhouse gas emissions. Even though social and economic aspects also steer urban development, these results can guide planning to consider carbon-smart options.
Guantao Chen, Edzo Veldkamp, Muhammad Damris, Bambang Irawan, Aiyen Tjoa, and Marife D. Corre
Biogeosciences, 21, 513–529, https://doi.org/10.5194/bg-21-513-2024, https://doi.org/10.5194/bg-21-513-2024, 2024
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We established an oil palm management experiment in a large-scale oil palm plantation in Jambi, Indonesia. We recorded oil palm fruit yield and measured soil CO2, N2O, and CH4 fluxes. After 4 years of treatment, compared with conventional fertilization with herbicide weeding, reduced fertilization with mechanical weeding did not reduce yield and soil greenhouse gas emissions, which highlights the legacy effects of over a decade of conventional management prior to the start of the experiment.
Elizabeth Gachibu Wangari, Ricky Mwangada Mwanake, Tobias Houska, David Kraus, Gretchen Maria Gettel, Ralf Kiese, Lutz Breuer, and Klaus Butterbach-Bahl
Biogeosciences, 20, 5029–5067, https://doi.org/10.5194/bg-20-5029-2023, https://doi.org/10.5194/bg-20-5029-2023, 2023
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Agricultural landscapes act as sinks or sources of the greenhouse gases (GHGs) CO2, CH4, or N2O. Various physicochemical and biological processes control the fluxes of these GHGs between ecosystems and the atmosphere. Therefore, fluxes depend on environmental conditions such as soil moisture, soil temperature, or soil parameters, which result in large spatial and temporal variations of GHG fluxes. Here, we describe an example of how this variation may be studied and analyzed.
Laurie C. Menviel, Paul Spence, Andrew E. Kiss, Matthew A. Chamberlain, Hakase Hayashida, Matthew H. England, and Darryn Waugh
Biogeosciences, 20, 4413–4431, https://doi.org/10.5194/bg-20-4413-2023, https://doi.org/10.5194/bg-20-4413-2023, 2023
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As the ocean absorbs 25% of the anthropogenic emissions of carbon, it is important to understand the impact of climate change on the flux of carbon between the ocean and the atmosphere. Here, we use a very high-resolution ocean, sea-ice, carbon cycle model to show that the capability of the Southern Ocean to uptake CO2 has decreased over the last 40 years due to a strengthening and poleward shift of the southern hemispheric westerlies. This trend is expected to continue over the coming century.
Petr Znachor, Jiří Nedoma, Vojtech Kolar, and Anna Matoušů
Biogeosciences, 20, 4273–4288, https://doi.org/10.5194/bg-20-4273-2023, https://doi.org/10.5194/bg-20-4273-2023, 2023
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We conducted intensive spatial sampling of the hypertrophic fishpond to better understand the spatial dynamics of methane fluxes and environmental heterogeneity in fishponds. The diffusive fluxes of methane accounted for only a minor fraction of the total fluxes and both varied pronouncedly within the pond and over the studied summer season. This could be explained only by the water depth. Wind substantially affected temperature, oxygen and chlorophyll a distribution in the pond.
Sofie Sjögersten, Martha Ledger, Matthias Siewert, Betsabé de la Barreda-Bautista, Andrew Sowter, David Gee, Giles Foody, and Doreen S. Boyd
Biogeosciences, 20, 4221–4239, https://doi.org/10.5194/bg-20-4221-2023, https://doi.org/10.5194/bg-20-4221-2023, 2023
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Permafrost thaw in Arctic regions is increasing methane emissions, but quantification is difficult given the large and remote areas impacted. We show that UAV data together with satellite data can be used to extrapolate emissions across the wider landscape as well as detect areas at risk of higher emissions. A transition of currently degrading areas to fen type vegetation can increase emission by several orders of magnitude, highlighting the importance of quantifying areas at risk.
Cole G. Brachmann, Tage Vowles, Riikka Rinnan, Mats P. Björkman, Anna Ekberg, and Robert G. Björk
Biogeosciences, 20, 4069–4086, https://doi.org/10.5194/bg-20-4069-2023, https://doi.org/10.5194/bg-20-4069-2023, 2023
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Herbivores change plant communities through grazing, altering the amount of CO2 and plant-specific chemicals (termed VOCs) emitted. We tested this effect by excluding herbivores and studying the CO2 and VOC emissions. Herbivores reduced CO2 emissions from a meadow community and altered VOC composition; however, community type had the strongest effect on the amount of CO2 and VOCs released. Herbivores can mediate greenhouse gas emissions, but the effect is marginal and community dependent.
Ole Lessmann, Jorge Encinas Fernández, Karla Martínez-Cruz, and Frank Peeters
Biogeosciences, 20, 4057–4068, https://doi.org/10.5194/bg-20-4057-2023, https://doi.org/10.5194/bg-20-4057-2023, 2023
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Based on a large dataset of seasonally resolved methane (CH4) pore water concentrations in a reservoir's sediment, we assess the significance of CH4 emissions due to reservoir flushing. In the studied reservoir, CH4 emissions caused by one flushing operation can represent 7 %–14 % of the annual CH4 emissions and depend on the timing of the flushing operation. In reservoirs with high sediment loadings, regular flushing may substantially contribute to the overall CH4 emissions.
Matti Räsänen, Risto Vesala, Petri Rönnholm, Laura Arppe, Petra Manninen, Markus Jylhä, Jouko Rikkinen, Petri Pellikka, and Janne Rinne
Biogeosciences, 20, 4029–4042, https://doi.org/10.5194/bg-20-4029-2023, https://doi.org/10.5194/bg-20-4029-2023, 2023
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Fungus-growing termites recycle large parts of dead plant material in African savannas and are significant sources of greenhouse gases. We measured CO2 and CH4 fluxes from their mounds and surrounding soils in open and closed habitats. The fluxes scale with mound volume. The results show that emissions from mounds of fungus-growing termites are more stable than those from other termites. The soil fluxes around the mound are affected by the termite colonies at up to 2 m distance from the mound.
Tim René de Groot, Anne Margriet Mol, Katherine Mesdag, Pierre Ramond, Rachel Ndhlovu, Julia Catherine Engelmann, Thomas Röckmann, and Helge Niemann
Biogeosciences, 20, 3857–3872, https://doi.org/10.5194/bg-20-3857-2023, https://doi.org/10.5194/bg-20-3857-2023, 2023
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This study investigates methane dynamics in the Wadden Sea. Our measurements revealed distinct variations triggered by seasonality and tidal forcing. The methane budget was higher in warmer seasons but surprisingly high in colder seasons. Methane dynamics were amplified during low tides, flushing the majority of methane into the North Sea or releasing it to the atmosphere. Methanotrophic activity was also elevated during low tide but mitigated only a small fraction of the methane efflux.
Frederic Thalasso, Brenda Riquelme, Andrés Gómez, Roy Mackenzie, Francisco Javier Aguirre, Jorge Hoyos-Santillan, Ricardo Rozzi, and Armando Sepulveda-Jauregui
Biogeosciences, 20, 3737–3749, https://doi.org/10.5194/bg-20-3737-2023, https://doi.org/10.5194/bg-20-3737-2023, 2023
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A robust skirt-chamber design to capture and quantify greenhouse gas emissions from peatlands is presented. Compared to standard methods, this design improves the spatial resolution of field studies in remote locations while minimizing intrusion.
Gesa Schulz, Tina Sanders, Yoana G. Voynova, Hermann W. Bange, and Kirstin Dähnke
Biogeosciences, 20, 3229–3247, https://doi.org/10.5194/bg-20-3229-2023, https://doi.org/10.5194/bg-20-3229-2023, 2023
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Nitrous oxide (N2O) is an important greenhouse gas. However, N2O emissions from estuaries underlie significant uncertainties due to limited data availability and high spatiotemporal variability. We found the Elbe Estuary (Germany) to be a year-round source of N2O, with the highest emissions in winter along with high nitrogen loads. However, in spring and summer, N2O emissions did not decrease alongside lower nitrogen loads because organic matter fueled in situ N2O production along the estuary.
Alex Mavrovic, Oliver Sonnentag, Juha Lemmetyinen, Jennifer L. Baltzer, Christophe Kinnard, and Alexandre Roy
Biogeosciences, 20, 2941–2970, https://doi.org/10.5194/bg-20-2941-2023, https://doi.org/10.5194/bg-20-2941-2023, 2023
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This review supports the integration of microwave spaceborne information into carbon cycle science for Arctic–boreal regions. The microwave data record spans multiple decades with frequent global observations of soil moisture and temperature, surface freeze–thaw cycles, vegetation water storage, snowpack properties, and land cover. This record holds substantial unexploited potential to better understand carbon cycle processes.
Zoé Rehder, Thomas Kleinen, Lars Kutzbach, Victor Stepanenko, Moritz Langer, and Victor Brovkin
Biogeosciences, 20, 2837–2855, https://doi.org/10.5194/bg-20-2837-2023, https://doi.org/10.5194/bg-20-2837-2023, 2023
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We use a new model to investigate how methane emissions from Arctic ponds change with warming. We find that emissions increase substantially. Under annual temperatures 5 °C above present temperatures, pond methane emissions are more than 3 times higher than now. Most of this increase is caused by an increase in plant productivity as plants provide the substrate microbes used to produce methane. We conclude that vegetation changes need to be included in predictions of pond methane emissions.
Julian Koch, Lars Elsgaard, Mogens H. Greve, Steen Gyldenkærne, Cecilie Hermansen, Gregor Levin, Shubiao Wu, and Simon Stisen
Biogeosciences, 20, 2387–2403, https://doi.org/10.5194/bg-20-2387-2023, https://doi.org/10.5194/bg-20-2387-2023, 2023
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Utilizing peatlands for agriculture leads to large emissions of greenhouse gases worldwide. The emissions are triggered by lowering the water table, which is a necessary step in order to make peatlands arable. Many countries aim at reducing their emissions by restoring peatlands, which can be achieved by stopping agricultural activities and thereby raising the water table. We estimate a total emission of 2.6 Mt CO2-eq for organic-rich peatlands in Denmark and a potential reduction of 77 %.
Mélissa Laurent, Matthias Fuchs, Tanja Herbst, Alexandra Runge, Susanne Liebner, and Claire C. Treat
Biogeosciences, 20, 2049–2064, https://doi.org/10.5194/bg-20-2049-2023, https://doi.org/10.5194/bg-20-2049-2023, 2023
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In this study we investigated the effect of different parameters (temperature, landscape position) on the production of greenhouse gases during a 1-year permafrost thaw experiment. For very similar carbon and nitrogen contents, our results show a strong heterogeneity in CH4 production, as well as in microbial abundance. According to our study, these differences are mainly due to the landscape position and the hydrological conditions established as a result of the topography.
Michael Moubarak, Seeta Sistla, Stefano Potter, Susan M. Natali, and Brendan M. Rogers
Biogeosciences, 20, 1537–1557, https://doi.org/10.5194/bg-20-1537-2023, https://doi.org/10.5194/bg-20-1537-2023, 2023
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Tundra wildfires are increasing in frequency and severity with climate change. We show using a combination of field measurements and computational modeling that tundra wildfires result in a positive feedback to climate change by emitting significant amounts of long-lived greenhouse gasses. With these effects, attention to tundra fires is necessary for mitigating climate change.
Hanna I. Campen, Damian L. Arévalo-Martínez, and Hermann W. Bange
Biogeosciences, 20, 1371–1379, https://doi.org/10.5194/bg-20-1371-2023, https://doi.org/10.5194/bg-20-1371-2023, 2023
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Carbon monoxide (CO) is a climate-relevant trace gas emitted from the ocean. However, oceanic CO cycling is understudied. Results from incubation experiments conducted in the Fram Strait (Arctic Ocean) indicated that (i) pH did not affect CO cycling and (ii) enhanced CO production and consumption were positively correlated with coloured dissolved organic matter and nitrate concentrations. This suggests microbial CO uptake to be the driving factor for CO cycling in the Arctic Ocean.
Yihong Zhu, Ruihua Liu, Huai Zhang, Shaoda Liu, Zhengfeng Zhang, Fei-Hai Yu, and Timothy G. Gregoire
Biogeosciences, 20, 1357–1370, https://doi.org/10.5194/bg-20-1357-2023, https://doi.org/10.5194/bg-20-1357-2023, 2023
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With global warming, the risk of flooding is rising, but the response of the carbon cycle of aquatic and associated riparian systems
to flooding is still unclear. Based on the data collected in the Lijiang, we found that flooding would lead to significant carbon emissions of fluvial areas and riparian areas during flooding, but carbon capture may happen after flooding. In the riparian areas, the surviving vegetation, especially clonal plants, played a vital role in this transformation.
Lauri Heiskanen, Juha-Pekka Tuovinen, Henriikka Vekuri, Aleksi Räsänen, Tarmo Virtanen, Sari Juutinen, Annalea Lohila, Juha Mikola, and Mika Aurela
Biogeosciences, 20, 545–572, https://doi.org/10.5194/bg-20-545-2023, https://doi.org/10.5194/bg-20-545-2023, 2023
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We measured and modelled the CO2 and CH4 fluxes of the terrestrial and aquatic ecosystems of the subarctic landscape for 2 years. The landscape was an annual CO2 sink and a CH4 source. The forest had the largest contribution to the landscape-level CO2 sink and the peatland to the CH4 emissions. The lakes released 24 % of the annual net C uptake of the landscape back to the atmosphere. The C fluxes were affected most by the rainy peak growing season of 2017 and the drought event in July 2018.
Artem G. Lim, Ivan V. Krickov, Sergey N. Vorobyev, Mikhail A. Korets, Sergey Kopysov, Liudmila S. Shirokova, Jan Karlsson, and Oleg S. Pokrovsky
Biogeosciences, 19, 5859–5877, https://doi.org/10.5194/bg-19-5859-2022, https://doi.org/10.5194/bg-19-5859-2022, 2022
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In order to quantify C transport and emission and main environmental factors controlling the C cycle in Siberian rivers, we investigated the largest tributary of the Ob River, the Ket River basin, by measuring spatial and seasonal variations in carbon CO2 and CH4 concentrations and emissions together with hydrochemical analyses. The obtained results are useful for large-scale modeling of C emission and export fluxes from permafrost-free boreal rivers of an underrepresented region of the world.
Robert J. Parker, Chris Wilson, Edward Comyn-Platt, Garry Hayman, Toby R. Marthews, A. Anthony Bloom, Mark F. Lunt, Nicola Gedney, Simon J. Dadson, Joe McNorton, Neil Humpage, Hartmut Boesch, Martyn P. Chipperfield, Paul I. Palmer, and Dai Yamazaki
Biogeosciences, 19, 5779–5805, https://doi.org/10.5194/bg-19-5779-2022, https://doi.org/10.5194/bg-19-5779-2022, 2022
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Wetlands are the largest natural source of methane, one of the most important climate gases. The JULES land surface model simulates these emissions. We use satellite data to evaluate how well JULES reproduces the methane seasonal cycle over different tropical wetlands. It performs well for most regions; however, it struggles for some African wetlands influenced heavily by river flooding. We explain the reasons for these deficiencies and highlight how future development will improve these areas.
Saúl Edgardo Martínez Castellón, José Henrique Cattanio, José Francisco Berrêdo, Marcelo Rollnic, Maria de Lourdes Ruivo, and Carlos Noriega
Biogeosciences, 19, 5483–5497, https://doi.org/10.5194/bg-19-5483-2022, https://doi.org/10.5194/bg-19-5483-2022, 2022
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We seek to understand the influence of climatic seasonality and microtopography on CO2 and CH4 fluxes in an Amazonian mangrove. Topography and seasonality had a contrasting influence when comparing the two gas fluxes: CO2 fluxes were greater in high topography in the dry period, and CH4 fluxes were greater in the rainy season in low topography. Only CO2 fluxes were correlated with soil organic matter, the proportion of carbon and nitrogen, and redox potential.
Matthias Koschorreck, Klaus Holger Knorr, and Lelaina Teichert
Biogeosciences, 19, 5221–5236, https://doi.org/10.5194/bg-19-5221-2022, https://doi.org/10.5194/bg-19-5221-2022, 2022
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At low water levels, parts of the bottom of rivers fall dry. These beaches or mudflats emit the greenhouse gas carbon dioxide (CO2) to the atmosphere. We found that those emissions are caused by microbial reactions in the sediment and that they change with time. Emissions were influenced by many factors like temperature, water level, rain, plants, and light.
Wantong Zhang, Zhengyi Hu, Joachim Audet, Thomas A. Davidson, Enze Kang, Xiaoming Kang, Yong Li, Xiaodong Zhang, and Jinzhi Wang
Biogeosciences, 19, 5187–5197, https://doi.org/10.5194/bg-19-5187-2022, https://doi.org/10.5194/bg-19-5187-2022, 2022
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This work focused on the CH4 and N2O emissions from alpine peatlands in response to the interactive effects of altered water table levels and increased nitrogen deposition. Across the 2-year mesocosm experiment, nitrogen deposition showed nonlinear effects on CH4 emissions and linear effects on N2O emissions, and these N effects were associated with the water table levels. Our results imply the future scenario of strengthened CH4 and N2O emissions from an alpine peatland.
Karel Castro-Morales, Anna Canning, Sophie Arzberger, Will A. Overholt, Kirsten Küsel, Olaf Kolle, Mathias Göckede, Nikita Zimov, and Arne Körtzinger
Biogeosciences, 19, 5059–5077, https://doi.org/10.5194/bg-19-5059-2022, https://doi.org/10.5194/bg-19-5059-2022, 2022
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Permafrost thaw releases methane that can be emitted into the atmosphere or transported by Arctic rivers. Methane measurements are lacking in large Arctic river regions. In the Kolyma River (northeast Siberia), we measured dissolved methane to map its distribution with great spatial detail. The river’s edge and river junctions had the highest methane concentrations compared to other river areas. Microbial communities in the river showed that the river’s methane likely is from the adjacent land.
Sonja Gindorf, Hermann W. Bange, Dennis Booge, and Annette Kock
Biogeosciences, 19, 4993–5006, https://doi.org/10.5194/bg-19-4993-2022, https://doi.org/10.5194/bg-19-4993-2022, 2022
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Methane is a climate-relevant greenhouse gas which is emitted to the atmosphere from coastal areas such as the Baltic Sea. We measured the methane concentration in the water column of the western Kiel Bight. Methane concentrations were higher in September than in June. We found no relationship between the 2018 European heatwave and methane concentrations. Our results show that the methane distribution in the water column is strongly affected by temporal and spatial variabilities.
Margaret Capooci and Rodrigo Vargas
Biogeosciences, 19, 4655–4670, https://doi.org/10.5194/bg-19-4655-2022, https://doi.org/10.5194/bg-19-4655-2022, 2022
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Tidal salt marsh soil emits greenhouse gases, as well as sulfur-based gases, which play roles in global climate but are not well studied as they are difficult to measure. Traditional methods of measuring these gases worked relatively well for carbon dioxide, but less so for methane, nitrous oxide, carbon disulfide, and dimethylsulfide. High variability of trace gases complicates the ability to accurately calculate gas budgets and new approaches are needed for monitoring protocols.
Janne Rinne, Patryk Łakomiec, Patrik Vestin, Joel D. White, Per Weslien, Julia Kelly, Natascha Kljun, Lena Ström, and Leif Klemedtsson
Biogeosciences, 19, 4331–4349, https://doi.org/10.5194/bg-19-4331-2022, https://doi.org/10.5194/bg-19-4331-2022, 2022
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The study uses the stable isotope 13C of carbon in methane to investigate the origins of spatial and temporal variation in methane emitted by a temperate wetland ecosystem. The results indicate that methane production is more important for spatial variation than methane consumption by micro-organisms. Temporal variation on a seasonal timescale is most likely affected by more than one driver simultaneously.
Kukka-Maaria Kohonen, Roderick Dewar, Gianluca Tramontana, Aleksanteri Mauranen, Pasi Kolari, Linda M. J. Kooijmans, Dario Papale, Timo Vesala, and Ivan Mammarella
Biogeosciences, 19, 4067–4088, https://doi.org/10.5194/bg-19-4067-2022, https://doi.org/10.5194/bg-19-4067-2022, 2022
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Four different methods for quantifying photosynthesis (GPP) at ecosystem scale were tested, of which two are based on carbon dioxide (CO2) and two on carbonyl sulfide (COS) flux measurements. CO2-based methods are traditional partitioning, and a new method uses machine learning. We introduce a novel method for calculating GPP from COS fluxes, with potentially better applicability than the former methods. Both COS-based methods gave on average higher GPP estimates than the CO2-based estimates.
Cited articles
Alsina, M. M., Fanton-Borges, A. C., and Smart, D. R.: Spatiotemporal
variation of event related N2O and CH4 emissions during
fertigation in a California almond orchard, Ecosphere, 4, 1–21,
https://doi.org/10.1890/ES12-00236.1, 2013.
Baram, S.: Data for The effect of static chamber base on N2O flux in drip irrigation, V1, Mendeley Data [data set], https://doi.org/10.17632/4ffkytvssp.1, 2022.
Baram, S., Dabach, S., Jerszurki, D., Stockert, C. M., and Smart, D. R.:
Upscaling point measurements of N2O emissions into the orchard scale
under drip and microsprinkler irrigation, Agr. Ecosyst. Environ., 265,
103–111, https://doi.org/10.1016/j.agee.2018.05.022, 2018.
Bateman, E. J. and Baggs, E. M.: Contributions of nitrification and
denitrification to N2O emissions from soils at different water-filled
pore space, Biol. Fertil. Soils, 41, 379–388,
https://doi.org/10.1007/s00374-005-0858-3, 2005.
Burton, D. L., Zebarth, B. J., Gillam, K. M., and MacLeod, J. A.: Effect of
split application of fertilizer nitrogen on N2O emissions from
potatoes, Can. J. Soil Sci., 88, 229–239,
https://doi.org/10.4141/CJSS06007, 2008.
Butterbach-Bahl, K., Baggs, E. M., Dannenmann, M., Kiese, R., and
Zechmeister-Boltenstern, S.: Nitrous oxide emissions from soils: how well do
we understand the processes and their controls?, Philos. T. Roy. Soc.
B, 368, 20130122, https://doi.org/10.1098/rstb.2013.0122,
2013.
Clough, T. J., Rochette, P., Thomas, S. M., Pihlatie, M., Christiansen, J.
R., and Thorman, R. E.: Global Research Alliance N2O chamber
methodology guidelines: Design considerations, J. Environ. Qual., 49,
1081–1091, https://doi.org/10.1002/jeq2.20117, 2020.
Communar, G. and Friedman, S. P.: Relative Water Uptake Rate as a Criterion
for Trickle Irrigation System Design: I. Coupled Source–Sink Steady Water
Flow Model, Soil Sci. Soc. Am. J., 74, 1493–1508,
https://doi.org/10.2136/sssaj2009.0338, 2010a.
Communar, G. and Friedman, S. P.: Relative Water Uptake Rate as a Criterion
for Trickle Irrigation System Design: II. Surface Trickle Irrigation, Soil
Sci. Soc. Am. J., 74, 1509–1517,
https://doi.org/10.2136/sssaj2009.0339, 2010b.
Communar, G. and Friedman, S. P.: General Solution for Steady Infiltration
and Water Uptake in Strip-Shaped, Rectangular, and Cylindrical Domains, Soil
Sci. Soc. Am. J., 75, 2085–2094,
https://doi.org/10.2136/sssaj2011.0088, 2011.
Cowan, N., Levy, P., Maire, J., Coyle, M., Leeson, S. R., Famulari, D.,
Carozzi, M., Nemitz, E., and Skiba, U.: An evaluation of four years of
nitrous oxide fluxes after application of ammonium nitrate and urea
fertilisers measured using the eddy covariance method, Agr. Forest
Meteorol., 280, 107812, https://doi.org/10.1016/j.agrformet.2019.107812, 2020.
Davidson, E. A., Keller, M., Erickson, H. E., Verchot, L. V., and Veldkamp,
E.: Testing a Conceptual Model of Soil Emissions of Nitrous and Nitric
Oxides Using two functions based on soil nitrogen availability and soil
water content, the hole-in-the-pipe model characterizes a large fraction of
the observed variation of nitric oxide and nitrous oxide emissions from
soils, Bioscience, 50, 667–680,
https://doi.org/10.1641/0006-3568(2000)050[0667:tacmos]2.0.co;2, 2000.
Eshel, G., Levy, G. J., Mingelgrin, U., and Singer, M. J.: Critical
Evaluation of the Use of Laser Diffraction for Particle-Size Distribution
Analysis, Soil Sci. Soc. Am. J., 68, 736–743,
https://doi.org/10.2136/sssaj2004.7360, 2004.
Fentabil, M. M., Nichol, C. F., Jones, M. D., Neilsen, G. H., Neilsen, D.,
and Hannam, K. D.: Effect of drip irrigation frequency, nitrogen rate and
mulching on nitrous oxide emissions in a semi-arid climate: An assessment
across two years in an apple orchard, Agr. Ecosyst. Environ., 235,
242–252, 2016.
Friedman, S. P., Communar, G., and Gamliel, A.: DIDAS – User-friendly
software package for assisting drip irrigation design and scheduling,
Comput. Electron. Agr., 120, 36–52,
https://doi.org/10.1016/J.COMPAG.2015.11.007, 2016.
Gardner, W. R.: Some steady-state solutions of the unsaturated moisture flow
equation with application to evaporation from a water table, Soil Sci., 4,
228–232, https://doi.org/10.1097/00010694-195804000-00006, 1958.
Garland, G. M., Suddick, E., Burger, M., Horwath, W. R., and Six, J.: Direct
N2O emissions from a Mediterranean vineyard: Event-related baseline
measurements, Agr. Ecosyst. Environ., 195, 44–52,
https://doi.org/10.1016/j.agee.2014.05.018, 2014.
Healy, R. W., Striegl, R. G., Russell, T. F., Hutchinson, G. L., and
Livingston, G. P.: Numerical Evaluation of Static-Chamber Measurements of
Soil–Atmosphere Gas Exchange: Identification of Physical Processes, Soil
Sci. Soc. Am. J., 60, 740–747,
https://doi.org/10.2136/sssaj1996.03615995006000030009x,
1996.
Heller, H., Bar-Tal, A., Tamir, G., Bloom, P., Venterea, R. T., Chen, D.,
Zhang, Y., Clapp, C. E., and Fine, P.: Effects of Manure and Cultivation on
Carbon Dioxide and Nitrous Oxide Emissions from a Corn Field under
Mediterranean Conditions, J. Environ. Qual., 39, 437,
https://doi.org/10.2134/jeq2009.0027, 2010.
Hénault, C., Bizouard, F., Laville, P., Gabrielle, B., Nicoullaud, B., Germon, J. C., and Cellier, P.: Predicting in situ soil N2O emission using NOE algorithm and soil database, Glob. Change Biol., 11, 115–127, https://doi.org/10.1111/j.1365-2486.2004.00879.x, 2005.
Hénault, C., Bourennane, H., Ayzac, A., Ratié, C., Saby, N. P. A.,
Cohan, J.-P., Eglin, T., and Le Gall, C.: Management of soil pH promotes
nitrous oxide reduction and thus mitigates soil emissions of this greenhouse
gas, Sci. Rep.-UK, 9, 20182, https://doi.org/10.1038/s41598-019-56694-3, 2019.
Hutchinson, G. L. and Livingston, G. P.: Vents and seals in non-steady-state
chambers used for measuring gas exchange between soil and the atmosphere,
Eur. J. Soil Sci., 52, 675–682,
https://doi.org/10.1046/j.1365-2389.2001.00415.x, 2001.
Keller, M. and Reiners, W. A.: Soil-atmosphere exchange of nitrous oxide,
nitric oxide, and methane under secondary succession of pasture to forest in
the Atlantic lowlands of Costa Rica, Global Biogeochem. Cy., 8, 399–409,
https://doi.org/10.1029/94GB01660, 1994.
Lotse, E. G., Jabro, J. D., Simmons, K. E., and Baker, D. E.: Simulation of
nitrogen dynamics and leaching from arable soils, J. Contam. Hydrol., 10,
183–196, https://doi.org/10.1016/0169-7722(92)90060-R,
1992.
Mishra, S., Parker, J. C., and Singhal, N.: Estimation of soil hydraulic
properties and their uncertainty from particle size distribution data, J.
Hydrol., 108, 1–18, https://doi.org/10.1016/0022-1694(89)90275-8, 1989.
Nemera, D. B., Bar-Tal, A., Levy, G. J., Lukyanov, V., Tarchitzky, J.,
Paudel, I., and Cohen, S.: Mitigating negative effects of long-term treated
wastewater application via soil and irrigation manipulations: Sap flow and
water relations of avocado trees (Persea americana Mill.), Agr. Water
Manage., 237, 106178, https://doi.org/10.1016/j.agwat.2020.106178, 2020.
Neuman, S. P., Feddes, R. A., and Bresler, E.: Finite Element Analysis of
Two-Dimensional Flow in Soils Considering Water Uptake by Roots: I. Theory,
Soil Sci. Soc. Am. J., 39, 224–230,
https://doi.org/10.2136/sssaj1975.03615995003900020007x,
1975.
Nye, P. and Tinker, P. B.: Solute Movement in the Soil-Root System,
Blackwell Scientific Publications, Hoboken, NJ, USA, 342 pp., ISBN 9780520034518, 1977.
Parkin, T. B. and Kaspar, T. C.: Nitrous oxide emissions from corn-soybean
systems in the midwest, J. Environ. Qual., 35, 1496–1506, 2006.
Perkins, T. K. and Johnston, O. C.: A Review of Diffusion and Dispersion in
Porous Media, Soc. Petrol. Eng. J., 3, 70–84, https://doi.org/10.2118/480-PA,
1963.
Rabot, E., Cousin, I., and Hénault, C.: A modeling approach of the
relationship between nitrous oxide fluxes from soils and the water-filled
pore space, Biogeochemistry, 122, 395–408,
https://doi.org/10.1007/s10533-014-0048-1, 2015.
Rochette, P. and Eriksen-Hamel, N. S.: Chamber Measurements of Soil Nitrous
Oxide Flux: Are Absolute Values Reliable?, Soil Sci. Soc. Am. J., 72,
331–342, https://doi.org/10.2136/sssaj2007.0215, 2008.
Russo, D. and Bouton, M.: Statistical analysis of spatial variability in
unsaturated flow parameters, Water Resour. Res., 28, 1911–1925,
https://doi.org/10.1029/92WR00669, 1992.
Russo, D. and Kurtzman, D.: Using Desalinated Water for Irrigation: Its
Effect on Field Scale Water Flow and Contaminant Transport under Cropped
Conditions, Water, 11, 687, https://doi.org/10.3390/w11040687,
2019.
Russo, D., Russo, I., and Laufer, A.: On the spatial variability of
parameters of the unsaturated hydraulic conductivity, Water Resour. Res.,
33, 947–956, https://doi.org/10.1029/96WR03947, 1997.
Russo, D., Zaidel, J., Fiori, A., and Laufer, A.: Numerical analysis of flow
and transport from a multiple-source system in a partially saturated
heterogeneous soil under cropped conditions, Water Resour. Res., 42, W06415,
https://doi.org/10.1029/2006WR004923, 2006.
Russo, D., Laufer, A., Shapira, R. H., and Kurtzman, D.: Assessment of
solute fluxes beneath an orchard irrigated with treated sewage water: A
numerical study, Water Resour. Res., 49, 657–674,
https://doi.org/10.1002/wrcr.20085, 2013.
Russo, D., Laufer, A., Bardhan, G., and Levy, G. J.: Salinity control in a
clay soil beneath an orchard irrigated with treated waste water in the
presence of a high water table: A numerical study, J. Hydrol., 531,
198–213, https://doi.org/10.1016/j.jhydrol.2015.04.013,
2015.
Russo, D., Laufer, A., and Bar-Tal, A.: Improving water uptake by trees
planted on a clayey soil and irrigated with low-quality water by various
management means: A numerical study, Agr. Water Manage., 229, 105891,
https://doi.org/10.1016/j.agwat.2019.105891, 2020.
Salgado, E. and Cautin, R.: Avocado root distribution in fine and
coarse-textured soils under drip and microsprinkler irrigation, Agr. Water
Manage., 95, 817–824, 2008.
Sánchez-Martín, L., Arce, A., Benito, A., Garcia-Torres, L., and
Vallejo, A.: Influence of drip and furrow irrigation systems on nitrogen
oxide emissions from a horticultural crop, Soil Biol. Biochem., 40,
1698–1706, https://doi.org/10.1016/j.soilbio.2008.02.005,
2008.
Sanchez-Martín, L., Meijide, A., Garcia-Torres, L., and Vallejo, A.:
Combination of drip irrigation and organic fertilizer for mitigating
emissions of nitrogen oxides in semiarid climate, Agr. Ecosyst. Environ.,
137, 99–107, https://doi.org/10.1016/j.agee.2010.01.006,
2010.
Scheer, C., Wassmann, R., Kienzler, K., Ibragimov, N., and Eschanov, R.:
Nitrous oxide emissions from fertilized, irrigated cotton (Gossypium hirsutum L.) in the Aral Sea Basin, Uzbekistan: Influence of nitrogen
applications and irrigation practices, Soil Biol. Biochem., 40, 290–301,
https://doi.org/10.1016/J.SOILBIO.2007.08.007, 2008.
Schellenberg, D. L., Alsina, M. M., Muhammad, S., Stockert, C. M., Wolff, M.
W., Sanden, B. L., Brown, P. H., and Smart, D. R.: Yield-scaled global
warming potential from N2O emissions and CH4 oxidation for almond
(Prunus dulcis) irrigated with nitrogen fertilizers on arid land, Agr.
Ecosyst. Environ., 155, 7–15, 2012.
Smart, D. R., Alsina, M. M., Wolff, M. W., Matiasek, M. G., Schellenberg, D.
L., Edstrom, J. P., Brown, P. H., and Scow, K. M.: N2O Emissions and
Water Management in California Perennial Crops, in: Understanding Greenhouse
Gas Emissions from Agricultural Management, edited by: Guo, L., Gunasekara,
A., and McConnell, L., ACS Symposium Series, American Chemical Society,
Washington, DC, 227–255, ISBN 9780841226548, 2011.
Tian, D., Zhang, Y., Mu, Y., Zhou, Y., Zhang, C., and Liu, J.: The effect of
drip irrigation and drip fertigation on N2O and NO emissions, water
saving and grain yields in a maize field in the North China Plain, Sci.
Total Environ., 575, 1034–1040, https://doi.org/10.1016/j.scitotenv.2016.09.166, 2017.
Vallejo, A., Meijide, A., Boeckx, P., Arce, A., García-torres, L.,
Aguado, P. L., and Sanchez-martin, L.: Nitrous oxide and methane emissions
from a surface drip-irrigated system combined with fertilizer management,
Eur. J. Soil Sci., 65, 386–395, https://doi.org/10.1111/ejss.12140, 2014.
van Genuchten, M. T.: A Closed-form Equation for Predicting the Hydraulic
Conductivity of Unsaturated Soils, Soil Sci. Soc. Am. J, 44, 892–898, 1980.
Venterea, R. T.: Simplified Method for Quantifying Theoretical
Underestimation of Chamber-Based Trace Gas Fluxes, J. Environ. Qual., 39,
126–135, https://doi.org/10.2134/jeq2009.0231, 2010.
Venterea, R. T., Petersen, S. O., de Klein, C. A. M., Pedersen, A. R.,
Noble, A. D. L., Rees, R. M., Gamble, J. D., and Parkin, T. B.: Global
Research Alliance N2O chamber methodology guidelines: Flux
calculations, J. Environ. Qual., 49, 1141–1155,
https://doi.org/10.1002/jeq2.20118, 2020.
Verhoeven, E. and Six, J.: Biochar does not mitigate field-scale N2O
emissions in a Northern California vineyard: An assessment across two years,
Agr. Ecosyst. Environ., 191, 27–38, https://doi.org/10.1016/j.agee.2014.03.008, 2014.
Wolff, M. W., Schellenberg, D. L., Sanden, B. L., Brown, P. H., and Smart,
D. R.: Reducing Reactive-N Loss from Fertigation: High-Frequency Application
and Fertilizer Selection, in: Poster presented at the annual meeting of the
Almond Board of California, Sacramento, California, USA, 2014.
Wolff, M. W., Hopmans, J. W., Stockert, C. M., Burger, M., Sanden, B. L.,
and Smart, D. R.: Effects of drip fertigation frequency and N-source on soil
N2O production in almonds, Agr. Ecosyst. Environ., 238, 67–77, 2017.
Wu, X. and Zhang, A.: Comparison of three models for simulating N2O
emissions from paddy fields under water-saving irrigation, Atmos. Environ.,
98, 500–509, https://doi.org/10.1016/j.atmosenv.2014.09.029, 2014.
Zebarth, B. J., Rochette, P., Burton, D. L., and Price, M.: Effect of
fertilizer nitrogen management on N2O emissions in commercial corn
fields, Can. J. Soil Sci., 88, 189–195, https://doi.org/10.4141/CJSS06010,
2008.
Zechmeister-Boltenstern, S., Schaufler, G., and Kitzler, B.: NO2,
N2O, CO2 and CH4 fluxes from soils under different land use:
temperature sensitivity and effects of soil moisture, Geophys. Res. Abstr.,
8, 7968, SRef-ID: 1607-7962/gra/EGU2007-A-07968, 2007.
Short summary
Static chambers are the most common tool used to measure greenhouse gas (GHG) fluxes. We tested the impact of such chambers on nitrous oxide emissions in drip irrigation. Field measurements and 3-D simulations show that the chamber base drastically affects the water and nutrient distribution in the soil and hence the measured GHG fluxes. A nomogram is suggested to determine the optimal diameter of a cylindrical chamber that ensures minimal disturbance.
Static chambers are the most common tool used to measure greenhouse gas (GHG) fluxes. We tested...
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