Review
Soil Science
Carmelo Maucieri, Massimo Tolomio, Marshall D. McDaniel, Yaojun Zhang, Javad Robatjazi, Maurizio Borin
Summary: No-tillage management significantly decreased CH4 emissions in paddy fields, but showed a slight non-significant tendency to increase emissions in maize-cultivated fields. Factors like climate, soil, and years since conversion to NT management had weak regulation on CH4 emissions, with a slight reduction tendency in humid subtropical climate. Climate effects were often confounded by crop choice and should be interpreted cautiously.
SOIL & TILLAGE RESEARCH
(2021)
Article
Soil Science
Sonia Chamizo, Emilio Rodriguez-Caballero, Enrique P. Sanchez-Canete, Francisco Domingo, Yolanda Canton
Summary: Despite covering over 40% of the Earth's land surface, factors driving soil respiration in drylands are still poorly understood. This study found that CO2 efflux in soil under grass and lichen biocrusts was significantly higher compared to other surface covers such as bare soil and cyanobacterial biocrusts.
Article
Forestry
D. V. Karelin, D. G. Zamolodchikov, A. V. Shilkin, S. Yu. Popov, A. S. Kumanyaev, V. O. Lopes de Gerenyu, N. O. Tel'nova, Michael L. Gitarskiy
Summary: Long-term field studies in north-western European Russia showed that CO2 fluxes in an old-growth spruce forest were affected by climate change, bark beetle attacks, and windfall events. The decrease in annual carbon uptake and evapotranspiration was attributed to progressive tree mortality. However, specific ecosystem respiration was not significantly reduced despite increased mortality. The respiration of the damaged forest was mainly from soil, living vegetation, hotspots, and decomposition of woody debris.
EUROPEAN JOURNAL OF FOREST RESEARCH
(2021)
Article
Remote Sensing
Jibo Yue, Yuanyuan Fu, Wei Guo, Haikuan Feng, Hongbo Qiao
Summary: This study proposes a method using SWIRA and NDVI with Sentinel-2 MSI images to estimate and produce multi-temporal maps of crop residue, crop, and bare soil. Results show that SWIRA is less affected by cropland moisture compared to existing spectral indices, and the estimated values can be used for improving crop growth and decision-making in agriculture.
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2022)
Article
Agronomy
Mahboube Jarrah, Sonia Mayel, Uwe Franko, Katrin Kuka
Summary: The study investigates the effects of management practices on soil temperature dynamics, comparing four different management systems in Germany. Results show that soil temperature decreases with depth, with diurnal temperature variations up to 45 cm depth and annual temperature variations up to 180 cm depth. Soil temperature dynamics are influenced by management systems and fertilization, with a time lag observed between surface and deeper layer temperature fluctuations.
Article
Soil Science
Linden Fairbairn, Fereidoun Rezanezhad, Mehdi Gharasoo, Chris T. Parsons, Merrin L. Macrae, Stephanie Slowinski, Philippe Van Cappellen
Summary: Soil moisture is an important variable in predicting carbon dioxide (CO2) emissions. Previous studies have focused on aerobic respiration as the source of CO2, ignoring anaerobic processes. This study conducted experiments at different moisture levels under both oxic and anoxic conditions. The results showed that moderate moisture levels resulted in maximum CO2 fluxes, but substantial CO2 fluxes were also measured at fully saturated conditions. Methane (CH4) fluxes increased over time in anoxic conditions. A kinetic model was proposed to represent both aerobic and anaerobic CO2 production. This study highlights the importance of considering anaerobic reaction pathways in predicting soil CO2 production at high moisture levels.
Article
Soil Science
Sekou F. M. Coulibaly, Michael Aubert, Nicolas Brunet, Fabrice Bureau, Marc Legras, Matthieu Chauvat
Summary: The study evaluated the impact of different tillage systems on soil dynamics under actual field conditions. The results showed that stopping tillage improved soil structure, increased populations of soil fauna, and consequently enhanced soil quality and health.
SOIL & TILLAGE RESEARCH
(2022)
Article
Soil Science
David Reinthaler, Eliza Harris, Erich M. Poetsch, Markus Herndl, Andreas Richter, Herbert Wachter, Michael Bahn
Summary: This study conducted a global change experiment in a managed temperate grassland and found that under future climate conditions, soil respiration was higher and the reductions induced by drought were delayed. In the future scenario, extreme drought led to more pronounced reductions and post-drought responses of soil respiration.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Environmental Studies
Aysan Badraghi, Beata Novotna, Jan Frouz, Koloman Kristof, Martin Trakovicky, Martin Juriga, Branislav Chvila, Leonardo Montagnani
Summary: This study investigated the role of a non-irrigated grassed vineyard in carbon sequestration using the eddy covariance and soil chamber techniques. The results showed that carbon released through respiration accounted for a significant portion of the carbon uptake through photosynthesis, and the vineyard soil was not a major source of carbon emissions. Temperature and vapor pressure deficit were found to be important factors affecting carbon sequestration and emissions.
Article
Soil Science
Danyang Wang, Haichao Yang, Hao Qian, Lulu Gao, Cheng Li, Jingda Xin, Yayi Tan, Yunqi Wang, Zhaofu Li
Summary: This study investigates the potential of image fusion to minimize the impact of vegetation cover on topsoil salinity mapping, providing a significant improvement in accuracy. The results showed that the fused image outperformed the original image, and stacking models with the fused image provided the best prediction performances.
Article
Environmental Sciences
Mariah S. Carbone, Andrew D. Richardson, Billy Barr, Max Berkelhammer, Claudia M. Boot, Austin Simonpietri, Christopher J. Still
Summary: Long-term soil CO2 emission measurements are crucial for understanding trends and variability in the terrestrial carbon cycle. This study conducted continuous measurements in two high elevation forest types in the upper Colorado River basin and found that snowfall and rainfall had significant impacts on soil CO2 flux, with greater sensitivity to rainfall. Furthermore, the study observed a decline in surface soil CO2 production due to warming and reduced summer rainfall.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Agronomy
Megahed M. Amer, Mohssen Elbagory, Mahmoud Aiad, Alaa El-Dein Omara
Summary: Tillage systems, including physical, chemical, and biological modifications, have impacts on soil properties. This study conducted field experiments to investigate the effects of different soil tillage and soil additives on the biological, chemical, and physical properties of soil and its productivity. The results showed that the combination treatment of no tillage and soil additives resulted in improved soil properties, biological activity, and higher yields.
Article
Agriculture, Multidisciplinary
M. M. R. Jahangir, R. Begum, M. Jahiruddin, K. Dawar, M. Zaman, R. W. Bell, K. G. Richards, C. Mueller
Summary: In a wheat-mungbean-rice rotation system, nitrous oxide emissions were higher in strip tillage compared to conventional tillage, with the nitrogen fertilizer rate also affecting emissions. However, strip tillage could improve soil aggregation and balance nitrogen and crop yield despite the increased emissions.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
Dien Wu, John C. Lin, Henrique F. Duarte, Vineet Yadav, Nicholas C. Parazoo, Tomohiro Oda, Eric A. Kort
Summary: The study highlights the challenges in estimating fossil fuel carbon dioxide emissions in urban areas due to biogenic carbon exchanges. By developing a simple model representation, it was possible to estimate ecosystem respiration and gross primary production across cities globally. Through advanced data analysis and modeling, the study provides valuable insights into the dynamics of biogenic carbon fluxes in urban environments.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2021)
Article
Ecology
Hongxing He, Laura Clark, Oi Yin Lai, Rachel Kendall, Ian Strachan, Nigel T. Roulet
Summary: When peat is extracted for horticultural use, it leads to significant changes in carbon, water, and energy exchanges of the peatland, resulting in a shift from a carbon sink to a large source of CO2. Using the CoupModel, researchers simulated soil CO2 emissions and the associated abiotic drivers at a horticultural peat extraction site in Quebec, Canada. The model accurately reproduced measured data on soil moisture, temperature, water table depth, and CO2 emissions. The results have implications for reporting emissions from the horticultural peat extraction industry and guiding climate-smart management practices.
Article
Environmental Sciences
Luciano Ito Perillo, Ricardo de Oliveira Bordonal, Eduardo Barretto de Figueiredo, Mara Regina Moitinho, Daniel Alves Aguiar, Bernardo Friedrich Theodor Rudorff, Alan Rodrigo Panosso, Newton La Scala Jr
Summary: This study focused on estimating GHG emissions from sugarcane cultivation in southern Brazil from 2006 to 2012, during a period of expansion and transition. The gradual transition from pre-harvest burning to green mechanized harvest was found to contribute to a reduction in GHG emissions related to sugarcane production, representing an important step towards overall GHG mitigation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Luis Miguel da Costa, Gustavo Andre de Araujo Santos, Gislaine Costa de Mendonca, Luiz Fernando Favacho Morais Filho, Kamila Cunha de Meneses, Glauco de Souza Rolim, Newton La Scala
Summary: This study characterized the spatial-temporal variability and main factors controlling atmospheric CO2 column in the macroregion of Ribeirao Preto, Sao Paulo, Brazil using remote sensing data. Negative correlations were found between Xco(2) and factors such as photosynthesis, relative humidity, and global radiation. Hotspots and coldspots of Xco(2) varied over the years.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2022)
Article
Environmental Sciences
Luis Miguel da Costa, Gustavo Andre de Araujo Santos, Alan Rodrigo Panosso, Glauco de Souza Rolim, Newton La Scala
Summary: This study reveals a negative correlation between atmospheric CO2 concentration and photosynthesis and highlights the importance of remote sensing techniques in observing this relationship. By analyzing several variables related to photosynthetic capacity, a daily model is proposed to estimate the natural changes in atmospheric CO2. The results show that meteorological factors significantly impact the daily variations in X-CO2.
CARBON BALANCE AND MANAGEMENT
(2022)
Article
Biochemistry & Molecular Biology
Beatriz Gamiz, Pilar Velarde, Kurt A. Spokas, Lucia Cox
Summary: Biochar can control the contamination of residual concentrations of sulfonamides in soil. Biochar activated with iron has better sorption ability for sulfanilamide and can reduce its migration in soil and water. However, surface modification of biochar is more effective for water decontamination.
Article
Plant Sciences
Breno de Jesus Pereira, Arthur Bernardes Cecilio Filho, Newton La Scala, Eduardo Barretto de Figueiredo
Summary: Vegetable intercropping is a strategy to reduce greenhouse gas emissions in sustainable agricultural systems. The study found that intercropping can significantly reduce GHG emissions and carbon footprint compared to monoculture.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Environmental Sciences
Luis Miguel da Costa, Gislaine Costa de Mendonca, Gustavo Andre de Araujo Santos, Jose Reinaldo da Silva Cabral de Moraes, Roberto Colombo, Alan Rodrigo Panosso, Newton La Scala
Summary: The detection of Solar-Induced chlorophyll Fluorescence (SIF) by remote sensing has provided new insights into ecosystem studies and photosynthesis. By combining OCO-2 with MODIS orbital observations, the resolution of SIF has been improved from 0.5 degrees to 0.05 on a global scale. Through a study on six contrasting ecosystems in Brazil, it was found that SIF showed significant spatial variability and was related to rainfall distribution.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Gustavo Andre de Araujo Santos, Luiz Fernando Favacho Morais Filho, Kamila Cunha de Meneses, Carlos Antonio da Silva Junior, Glauco de Souza Rolim, Newton La Scala Jr
Summary: Massive deforestation in the eastern Amazon region of Brazil has devastated almost 80% of the original vegetation. This study, based on NASA's OCO-2 data, aims to characterize the hot spots, atmospheric CO2 anomalies, and their interactions with climate and vegetation indices. The findings indicate that the hot moments of CO2 in the eastern Amazon rainforest are concentrated in the dry season, with spatial hot spots and anomalies mainly located in the southern region and near protected areas.
ENVIRONMENTAL RESEARCH
(2022)
Article
Agriculture, Multidisciplinary
Srinivasagan N. Subhashree, C. Igathinathane, J. Hendrickson, D. Archer, M. Liebig, J. Halvorson, S. Kronberg, D. Toledo, K. Sedivec, D. Peck
Summary: Economic analysis helps in decision-making related to forage production and handling by providing information on growing or buying forage, setting prices, and purchasing equipment. The web-based tool FECWT simplifies the complex and time-consuming process of economic calculations, generating results based on user inputs or default data. The tool calculates net return, break-even ratio, payback period, and return on investment, and has been shown effective through case studies using real-field data.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2023)
Article
Environmental Sciences
Mark A. A. Liebig, Emma L. L. Bergh, David W. W. Archer
Summary: Global warming potential (GWP) estimates from agroecosystems are complex and highly variable due to the various attributes involved. A review of published GWP estimates from cropland revealed considerable variation in estimation approaches, with respiration methods and soil carbon stock change being the most commonly used methods. Furthermore, there was a lack of consistency in accounting for carbon change in GWP estimates and a divergence in carbon dioxide equivalent conversion factors in recent years. This review highlights the need for increased transparency and presentation of key metadata alongside GWP estimates.
JOURNAL OF ENVIRONMENTAL QUALITY
(2023)
Review
Agronomy
Srinivasagan N. N. Subhashree, C. Igathinathane, Adnan Akyuz, Md. Borhan, John Hendrickson, David Archer, Mark Liebig, David Toledo, Kevin Sedivec, Scott Kronberg, Jonathan Halvorson
Summary: Farmers and ranchers rely on annual forage production for grassland livestock enterprises. Regression and machine learning models have been developed to understand the seasonal variability in grass and forage production. Decision support tools help farmers compare management practices and develop forecast scenarios. A systematic literature review was performed to synthesize current knowledge, identify research gaps, and inform stakeholders. High-resolution satellites, advanced ML models, and interactive, user-friendly tools should be further studied and applied in this field.
Article
Multidisciplinary Sciences
Abdullah Niaz, Kurt A. Spokas, Bea Gamiz, David Mulla, Khaliq R. Arshad, Sarfraz Hussain
Summary: This study evaluated the effect of pyrolysis temperatures on MCPA sorption in biochars made from different feedstocks, and found that sorption increased with pyrolysis temperature. Poultry manure and rice hulls pyrolyzed at higher temperatures exhibited irreversible sorption, while wood pellets showed concentration-dependent desorption. The study also compared the predictive ability of different isotherm models and found that the Freundlich isotherm was a better predictor of MCPA sorption.
Article
Environmental Sciences
Marcelo Odorizzi de Campos, Carlos Eduardo Pellegrino Cerri, Newton La Scala Jr
Summary: The degradation of pastures in Brazil's Cerrado biome poses a threat, as it contributes to CO2 emissions and soil carbon losses. This study highlights the contrast between degraded pastures and managed pastures in terms of atmospheric CO2 dynamics. The findings suggest that degraded pastures, with their stored soil carbon, are the main source of CO2 emissions, emphasizing the importance of proper pasture management for mitigating emissions and improving soil carbon content.
REMOTE SENSING APPLICATIONS-SOCIETY AND ENVIRONMENT
(2022)
Article
Agronomy
Mark A. Liebig, Nicanor Z. Saliendra, David W. Archer
Summary: The increase in corn and soybean production in rainfed cropping systems of the northern Great Plains has altered the carbon balance of agricultural land. This study quantified the carbon balance of a spring wheat-corn-soybean rotation and found that the rotation is a carbon source. It also found that lengthening the period of crop growth can reduce carbon loss.
AGROSYSTEMS GEOSCIENCES & ENVIRONMENT
(2022)
Article
Agronomy
Eric Antosh, Mark A. Liebig, David W. Archer, Roberto Luciano
CROP FORAGE & TURFGRASS MANAGEMENT
(2022)
Article
Soil Science
Camila Viana Vieira Farhate, Zigomar Menezes de Souza, Mauricio Roberto Cherubin, Lenon Henrique Lovera, Ingrid Nehmi de Oliveira, Wellingthon da Silva Guimaraes Junnyor, Newton La Scala Junior
Summary: This study evaluates the impact of adopting conservation management practices during sugarcane planting on soil physical properties and stalk yield of sugarcane. The results showed that cultivation of sunn hemp associated with deep subsoiling induced high stalk yield of sugarcane, but did not result in significant differences in sugarcane yield. Planting sunn hemp and millet, along with subsoiling, are promising strategies for better soil physical quality in sugarcane fields.
REVISTA BRASILEIRA DE CIENCIA DO SOLO
(2022)