Article
Plant Sciences
Suman Lamichhane, Chiaki Murata, Carl A. Griffey, Wade E. Thomason, Takeshi Fukao
Summary: The study compared the nitrogen use efficiency of two soft red winter wheat genotypes under limited nitrogen conditions, finding that VA08MAS-369 exhibited higher efficiency in nitrogen remobilization in leaves and nitrogen uptake in roots.
Article
Agronomy
Feilong Yan, Yu Shi, Zhenwen Yu
Summary: Optimizing field border length can reduce soil nitrogen residues and increase nitrogen absorption and utilization by wheat plants in the Huang-Huai-Hai Plain of China. The study found that irrigation with a border length of 40 meters significantly improved nitrogen transport and grain nitrogen accumulation, while reducing soil inorganic nitrogen residue. This resulted in higher grain yield and nitrogen fertilizer utilization compared to other irrigation methods.
Article
Plant Sciences
Angie L. Gamez, Xue Han, Iker Aranjuelo
Summary: This study evaluated the effect of elevated concentrations of CO2 on two cultivars of wheat at three phenological stages and in different organs, suggesting minimal effect on agronomic and biomass parameters but differential responses in carbon and nitrogen dynamics between cultivars.
Article
Environmental Sciences
Savita Datta, Anita Sharma, Baerbel Sinha
Summary: DO3SE model is a dry deposition model used to assess tropospheric ozone risk to vegetation. The photosynthetic model is found to be superior to the multiplicative model even for leaf-level studies, and it can accurately assess nighttime pollutant uptake fluxes.
ENVIRONMENTAL POLLUTION
(2022)
Article
Agronomy
Feina Zheng, Jiyuan Qin, Yifan Hua, Jinpeng Chu, Xinglong Dai, Mingrong He
Summary: A modified sowing pattern with wider seedling strips has been found to improve the nitrogen use efficiency of winter wheat, especially in terms of enhanced nitrogen uptake from the soil. However, the effects of this sowing pattern on root size, N-15-uptake efficiency, and N uptake from different soil depths have not been clarified yet.
Article
Biochemistry & Molecular Biology
Yanru Feng, Muhammad Shahedul Alam, Feng Yan, Michael Frei
Summary: Tropospheric ozone has significant effects on the remobilization and allocation efficiency of aboveground biomass and nutrients in cereal crops. Long-term ozone exposure increases straw C:N ratio and affects grain C:N ratio. Grain N concentrations increase significantly under ozone stress, but N yield declines due to grain yield losses. Various indicators of N use efficiency are reduced, indicating reduced N absorption from soil and allocation from vegetative to reproductive organs. Straw C:N ratio is not suitable for predicting wheat productivity. Nitrogen harvest index (NHI) is not affected by ozone stress, but the relationship between harvest index (HI) and NHI is changed by elevated ozone concentration.
Article
Agronomy
Arnesta Odone, Olga Popovic, Kristian Thorup-Kristensen
Summary: This study aimed to investigate the relationship between deep roots in winter wheat and drought tolerance, and how this relationship is affected by genotype and nitrogen fertilization. The study found that deep roots were correlated with higher grain yield, uptake of water and nitrogen from deeper layers, and tolerance to drought. Therefore, breeding efforts should consider enhancing deep rooting for more climate resilient crops.
Article
Agriculture, Multidisciplinary
Jianbiao Guo, Juanjuan Zhang, Shuping Xiong, Zhiyong Zhang, Qinqin Wei, Wen Zhang, Wei Feng, Xinming Ma
Summary: Real-time non-destructive monitoring of nitrogen accumulation through hyperspectral remote sensing is crucial for crop nitrogen management. This study compared different parameters and modeling methods for predicting leaf nitrogen accumulation, with SVM regression model found to be the most accurate. Continuum removal treatment improved the correlation between chlorophyll absorption region spectra and leaf nitrogen accumulation.
PRECISION AGRICULTURE
(2021)
Article
Plant Sciences
Hui Sun, Meichen Feng, Wude Yang, Rutian Bi, Jingjing Sun, Chunqi Zhao, Lujie Xiao, Chao Wang, Muhammad Saleem Kubar
Summary: Rapid and non-destructive estimation of leaf nitrogen accumulation (LNA) is crucial for nitrogen management in the field. This study developed a new spectral index, FDR-TBI1 (451, 706, 688), which showed the best performance in estimating LNA of winter wheat. The FDR transformation method enhanced the relationship to LNA and improved prediction accuracy.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Yuangang Zhu, Juan Liu, Jiaqi Li, Lishan Xian, Jinpeng Chu, Hui Liu, Jian Song, Yinghui Sun, Zhongmin Dai
Summary: Understanding dry matter accumulation during the stem elongation period is crucial for yield estimation. This study investigated the effects of delayed sowing on dry matter accumulation in main shoots and tillers. The results showed that delayed sowing increased grain yield and dry matter accumulation in main shoots, while decreasing them in tillers. However, delayed sowing improved dry matter accumulation in both main shoots and tillers during stem elongation.
EUROPEAN JOURNAL OF AGRONOMY
(2023)
Article
Engineering, Environmental
Jiao Li, Ruifang Liu, Chuangye Zhang, Jing Yang, Lihui Lyu, Zhaoyong Shi, Yu Bon Man, Fuyong Wu
Summary: The present study found that the inoculation of AMF can significantly improve selenium uptake by winter wheat under low phosphorus levels. AMF improves the expression of phosphate transporter and the bioavailability of selenium in the rhizosphere soil, thus enhancing plant selenium concentration.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Agronomy
Matthias Stettmer, Franz-Xaver Maidl, Jurgen Schwarzensteiner, Kurt-Juergen Huelsbergen, Heinz Bernhardt
Summary: This study investigated the precision of nitrogen uptake measurements using sensor and satellite data in winter wheat. The results showed moderate to strong correlations between the data from both methods and the ground truth data, with slight deviations in the absolute amount of nitrogen uptake.
Article
Plant Sciences
Jianqing Wang, Lianqing Li, Shu Kee Lam, Xiuzhen Shi, Genxing Pan
Summary: Projected global climate change poses a potential threat to nutrient utilization in agroecosystems. However, the combined effects of elevated [CO2] and canopy warming on nutrient concentrations and translocations in plants are not well understood. This study conducted an open-air field experiment to investigate the impact of elevated [CO2] and canopy air warming on nutrient status during the growing season of winter wheat. The results showed that canopy warming played a more important role in nutrient translocation from belowground to aboveground than elevated [CO2].
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Hemat Mahmood, Jian Cai, Qin Zhou, Xiao Wang, Allan Samo, Mei Huang, Tingbo Dai, Mohammad Shah Jahan, Dong Jiang
Summary: Nitrogen supply and seed rate have significant effects on wheat growth, yield, and nitrogen use efficiency. Increasing nitrogen levels and decreasing seed rate can improve photosynthetic rate, stomatal conductance, chlorophyll content, and enzyme activities. A combined treatment of nitrogen at 235 kg/ha and seed rate at 180 kg/ha resulted in the highest grain yield and nitrogen use efficiency.
Article
Environmental Sciences
Shaowu Hu, Yunxia Wang, Lianxin Yang
Summary: The analysis shows that elevated atmospheric CO2 concentration under FACE conditions can significantly increase rice yield by enhancing various yield components, especially spikelet density. Hybrid and indica rice exhibit a stronger response to elevated CO2 compared to conventional rice. Nitrogen supply plays a crucial role in affecting rice yield, while temperature also has different effects on yield increase.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Environmental Sciences
Peter M. Kopittke, Asmeret Asefaw Berhe, Yolima Carrillo, Timothy R. Cavagnaro, Deli Chen, Qing-Lin Chen, Mercedes Roman Dobarco, Feike A. Dijkstra, Damien J. Field, Michael J. Grundy, Ji-Zheng He, Frances C. Hoyle, Ingrid Kogel-Knabner, Shu Kee Lam, Petra Marschner, Cristina Martinez, Alex B. McBratney, Eve McDonald-Madden, Neal W. Menzies, Luke M. Mosley, Carsten W. Mueller, Daniel V. Murphy, Uffe N. Nielsen, Anthony G. O'Donnell, Elise Pendall, Jennifer Pett-Ridge, Cornelia Rumpel, Iain M. Young, Budiman Minasny
Summary: Healthy soils play a crucial role in planetary survivability, providing not only calories but also other essential functions. However, intensive agriculture is rapidly degrading soils and diminishing their capacity to deliver vital functions, highlighting the need to focus on the multiple functions of soils for long-term human welfare and the survivability of the planet.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Agronomy
Jianqing Wang, Yingfeng Zheng, Xiuzhen Shi, Shu Kee Lam, Manuel Esteban Lucas-Borja, Zhiqun Huang
Summary: This study demonstrates the active responses of soil nematode community to nature restoration and highlights the importance of above-ground and below-ground interactions to the soil food web.
Review
Forestry
Phillip M. Chalk, Shu K. Lam, Deli Chen
Summary: This article reviews the literature on the contribution of endophytic and phyllospheric N-2 fixation to non-nodulated trees and highlights the need for in situ measurements and overcoming methodological obstacles.
TREES-STRUCTURE AND FUNCTION
(2022)
Article
Soil Science
Helen Suter, Shu Kee Lam, Charles Walker, Deli Chen
Summary: This study investigated the impact of different types of enhanced-efficiency nitrogen fertilisers (EEFs) on pasture growth, showing significant effects of PCU and DMPP under different nitrogen fertiliser application conditions. Seasonal variations also influence the efficiency of EEFs.
Article
Agriculture, Multidisciplinary
Baobao Pan, Longlong Xia, Enli Wang, Yushu Zhang, Arvin Mosier, Deli Chen, Shu Kee Lam
Summary: Soil denitrification can lead to significant nitrogen loss, and the denitrification rate is positively correlated with soil water content, nitrate content, and temperature, with an average emission factor of 4.8% and an average N2O/(N2O+N-2) ratio of 0.33. Latitude, water content, soil mineral nitrogen, and soil oxygen content affect N-2 emissions, while soil oxygen content, organic carbon, C/N ratio, soil pH, and water content affect the N2O/(N2O+N-2) ratio. Optimizing nitrogen application, using ammonium-based fertilizers, applying biochar, and using nitrification inhibitors can effectively reduce soil denitrification rate and N-2 emissions.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Review
Ecology
Shu Kee Lam, Jordan P. Goodrich, Xia Liang, Yujing Zhang, Baobao Pan, Louis A. Schipper, Yiyi Sulaeman, Lee Nelson, Deli Chen
Summary: Conversion of tropical peat swamp forests for industrial plantations and agriculture leads to significant carbon loss. Management practices, such as raising the water table and reducing nitrogen fertilizer inputs, can help mitigate greenhouse gas emissions.
FRONTIERS IN ECOLOGY AND THE ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Xinrui Shi, Jie Shen, Bingjie Niu, Shu Kee Lam, Yuzheng Zong, Dongsheng Zhang, Xingyu Hao, Ping Li
Summary: The study found that broomcorn millet has higher yield and increased accumulation of certain nutrients, such as minerals and flavonoids, under elevated CO2 concentration. However, the protein content of the millet decreases under elevated CO2. These findings suggest that broomcorn millet has more desirable nutritional traits and potential for breeding more nutritious plants in the era of climate change.
Article
Multidisciplinary Sciences
Baojing Gu, Xiuming Zhang, Shu Kee Lam, Yingliang Yu, Hans J. M. van Grinsven, Shaohui Zhang, Xiaoxi Wang, Benjamin Leon Bodirsky, Sitong Wang, Jiakun Duan, Chenchen Ren, Lex Bouwman, Wim de Vries, Jianming Xu, Mark A. Sutton, Deli Chen
Summary: Cropland is a major contributor to nitrogen pollution, and reducing this pollution is a challenge due to the decentralized nature of the pollution and the limitations in implementing pollution-reduction measures. By analyzing field observations, we have identified key measures that can significantly reduce nitrogen losses from croplands while improving crop yield and nitrogen use efficiency. Implementing these measures on a global scale could lead to significant benefits in food supply, human health, ecosystems, and climate, with relatively low mitigation costs.
Correction
Multidisciplinary Sciences
Baojing Gu, Xiuming Zhang, Shu Kee Lam, Yingliang Yu, Hans J. M. van Grinsven, Shaohui Zhang, Xiaoxi Wang, Benjamin Leon Bodirsky, Sitong Wang, Jiakun Duan, Chenchen Ren, Lex Bouwman, Wim de Vries, Jianming Xu, Mark A. Sutton, Deli Chen
Article
Agronomy
Yuanling Zhang, Shu Kee Lam, Ping Li, Yuzheng Zong, Dongsheng Zhang, Xinrui Shi, Xingyu Hao, Jing Wang
Summary: Understanding the impacts of rising temperature and elevated [CO2] on different crop cultivars is crucial for adapting to climate change. Simulation and pot experiments were conducted to study the growth and yield of two wheat cultivars under elevated [CO2] and 2 degrees C warming. It was found that the early-maturing cultivar was better adapted to elevated [CO2] and rising temperature than the late-maturing one.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Plant Sciences
Jianqing Wang, Lianqing Li, Shu Kee Lam, Xiuzhen Shi, Genxing Pan
Summary: Projected global climate change poses a potential threat to nutrient utilization in agroecosystems. However, the combined effects of elevated [CO2] and canopy warming on nutrient concentrations and translocations in plants are not well understood. This study conducted an open-air field experiment to investigate the impact of elevated [CO2] and canopy air warming on nutrient status during the growing season of winter wheat. The results showed that canopy warming played a more important role in nutrient translocation from belowground to aboveground than elevated [CO2].
FRONTIERS IN PLANT SCIENCE
(2023)
Review
Agronomy
Xia Liang, Helen Suter, Shu Kee Lam, Charlie Walker, Roya Khalil, Deli Chen
Summary: This paper reviews the major challenges and future opportunities for making Australian agrifood systems more sustainable, less polluting and more profitable.
FRONTIERS OF AGRICULTURAL SCIENCE AND ENGINEERING
(2022)
Article
Food Science & Technology
Shu Kee Lam, Uta Wille, Hang-Wei Hu, Frank Caruso, Kathryn Mumford, Xia Liang, Baobao Pan, Bill Malcolm, Ute Roessner, Helen Suter, Geoff Stevens, Charlie Walker, Caixian Tang, Ji-Zheng He, Deli Chen
Summary: This article discusses the barriers and opportunities in designing enhanced-efficiency fertilizers and incorporating these alternative technologies into policy and decision-making. It shows that enhanced-efficiency fertilizers can reduce nitrogen losses in agricultural systems and provide economic advantages.
Correction
Food Science & Technology
Hans J. M. van Grinsven, Peter Ebanyat, Margaret Glendining, Baojing Gu, Renske Hijbeek, Shu Kee Lam, Luis Lassaletta, Nathaniel D. Mueller, Felipe S. Pacheco, Miguel Quemada, Tom W. Bruulsema, Brian H. Jacobsen, Hein F. M. ten Berge
Article
Food Science & Technology
Hans J. M. van Grinsven, Peter Ebanyat, Margaret Glendining, Baojing Gu, Renske Hijbeek, Shu Kee Lam, Luis Lassaletta, Nathaniel D. Mueller, Felipe S. Pacheco, Miguel Quemada, Tom W. Bruulsema, Brian H. Jacobsen, Hein F. M. ten Berge
Summary: This study develops a generic long-term nitrogen response function for global cereals based on 25 field experiments. The function characterizes the yield impacts, economic benefits, and external costs of changing nitrogen inputs. The study also proposes a new method to assess long-term sustainable nitrogen inputs. The results have important implications for nutrient management practices, policies, and global distribution of cereal production.
Article
Agriculture, Multidisciplinary
Jiarui Zhao, Xiaohu Yuan, Zhanjun Liu, Haotian Shi, Bingnian Zhai, Yuanjun Zhu
Summary: Overfertilization is common in rainfed apple orchards on China's Loess Plateau, but its impacts on soil physicochemical properties in deep soil profiles are poorly understood. This study found that different land-use types showed divergent distribution patterns in soil properties, with low variability for SWC and pH, moderate variability for NH4+-N, AP, and AK, and high variability for SOC, NO3--N, and EC. The results also showed that fertilization influenced soil water content, NO3--N, AP, and AK, and NO3--N played a crucial role in regulating pH and EC. Soil profiles were useful for studying the evolution of soil quality.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Daniel Nyfeler, Olivier Huguenin-Elie, Emmanuel Frossard, Andreas Luscher
Summary: Grass-legume mixtures combine high yields, low fertiliser requirements, and low nitrate leaching better than either pure grass or pure legume swards, both during the intact plant cover and after tilling for the subsequent crop.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Martin Faucher, Seraphine Grellier, Clemence Chaudron, Jean-Louis Janeau, Gabrielle Rudi, Fabrice Vinatier
Summary: The Mediterranean region is expected to experience more intense rainfall events and severe droughts due to climate change, leading to an increase in runoff and erosion rates in agrosystems. Vegetation cover can help reduce erosion and the soil seed bank can provide cost-effective vegetation. This study assessed the effect of vegetation cover on seed loss in vineyards and evaluated the differences in the soil seed bank along a transect. The results suggest that vegetation may not protect interrows from runoff-induced seed loss.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Christian Thierfelder, Blessing Mhlanga, Isaiah Nyagumbo, Kelvin Kalala, Esau Simutowe, Mazvita Chiduwa, Chloe Maclaren, Joao Vasco Silva, Hambulo Ngoma
Summary: The performance of different maize-legume diversification strategies was compared in southern Africa. Intercropping systems showed significant nutritional and economic benefits, but had higher labor requirements compared to other cropping systems. Soil organic carbon content and pH were not affected by the tested cropping systems.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Han Chen, Han Li, Yizhao Wei, Edward Mcbean, Hong Liang, Weimin Wang, Jinhui Jeanne Huang
Summary: This research introduces a hybrid four-sub-deep neural network (HFSD) model for partitioning NEE into GPP and ER. The HFSD employs dual sub-deep neural networks to estimate ERa and ERb and incorporates GPP and environmental variables to predict vegetation transpiration. The results of the model show that the dual sub-DNNs architecture enhances the accuracy of ER simulations, while using EC-derived T as a constraint improves the accuracy of GPP simulations. Correlation analyses suggest that solar radiation and air temperature primarily influence the seasonal variations in GPP and ER, while soil moisture has a strong impact during dry seasons. This study advances the biophysical description of data-driven models for NEE partitioning and enhances the accuracy of GPP and ER estimates.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Michael Glaser, Stefan Dullinger, Dietmar Moser, Johannes Wessely, Milan Chytry, Zdenka Lososova, Irena Axmanova, Christian Berg, Jana Buerger, Serge Buholzer, Fabrizio Buldrini, Alessandro Chiarucci, Swen Follak, Filip Kuezmic, Stefan Meyer, Petr Pysek, Nina Richner, Urban Silc, Siegrid Steinkellner, Alexander Wietzke, Franz Essl
Summary: This study investigated changes in vascular plant species in Central European arable fields and their edges from 1930 to 2019. The results showed a small decline in overall species occupancy, but a more pronounced species turnover. Species with environmental preferences for nutrient-rich sites with neutral pH increased in occupancy, while species typical for arable fields decreased. No response to climate change was observed, and there was a decrease in archaeophytes and native species and an increase in neophytes.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Thomas Abrell, Krishna Naudin, Felix J. J. A. Bianchi, Debora Veiga Aragao, Pablo Tittonell, Marc Corbeels
Summary: This study demonstrates that reducing fallow periods in shifting cultivation systems in the Eastern Amazon region has negative effects on soil fertility and weed pressure, posing a threat to the sustainability and productivity of local farming systems.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Jun Wang, Lu Lv, Ronggui Hu, Haiyang Ma, Bo Liu, Wenju Zhang, Lei Wu
Summary: Nitrification and denitrification are crucial for nitrogen losses in agricultural soils and are affected by soil properties. This study investigated the patterns and controlling factors of nitrification and denitrification potentials in paddy soils in major rice-producing areas of Hubei Province, China. The results showed that soil pH and SOC were the primary factors regulating nitrification and denitrification potentials, respectively.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Olga Fishkis, Jessica Weller, Jorn Lehmhus, Franz Pollinger, Jorn Strassemeyer, Heinz -Josef Koch
Summary: The Farm to Fork strategy of the European Union aims to reduce pesticide use and replace chemical measures with mechanical methods in weed control. However, there is currently no comprehensive evaluation of the ecological and economic parameters of mechanical methods. This study quantified these parameters for different weed control methods in sugar beet and found that no method can be considered fully environmentally friendly.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Mercedes Guerrero-Brotons, Nuria Perujo, Anna M. Romani, Rosa Gomez
Summary: Proper bed substrate selection is crucial for the performance of constructed wetlands, especially when treating drainage water with high nitrogen and low carbon and phosphorus concentrations. In a field-scale pilot plant, adding a carbon-rich substrate such as soil or biochar increased phosphorus availability in beds. Beds with soil displayed higher microbial density and activity, as well as better plant growth compared to gravel. These findings highlight the importance of selecting suitable substrates for treating irrigated agricultural water.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Beatrice Giannetta, Cesar Plaza, Giorgio Galluzzi, Iria Benavente-Ferraces, Juan Carlos Garcia-Gil, Marco Panettieri, Gabriel Gasco, Claudio Zaccone
Summary: This study examines the long-term effects of biochar application on soil organic C protection and finds that biochar, especially when combined with other amendments, has the potential to increase the content of particulate organic C and mineral-associated organic C in soils. The presence of ferrihydrite may mediate the positive effects on mineral-associated organic matter.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Emily Rose Waring, Carl Pederson, Ainis Lagzdins, Chelsea Clifford, Matthew J. Helmers
Summary: Addressing the global problem of eutrophication requires better management of inorganic nitrogen in the agricultural landscape. This study compares the effects of different tillage practices and cover crops on soil and water quality. The results show that the conventional tillage system is more effective in improving water quality and maintaining crop yields compared to other tillage practices. Additionally, the study reveals that the impact of tillage practices and cover crop growth methods on water and soil quality changes over time.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Annalisa Stevenson, Yakun Zhang, Jingyi Huang, Jie Hu, Keith Paustian, Alfred E. Hartemink
Summary: Considerable advances have been made in the assessment and mapping of soil organic carbon stocks. However, the rates of change in carbon stocks are influenced by various factors and need to be quantified. This study found that sandy soils under cultivation and forests have different organic carbon stocks. Factors such as tillage, irrigation, and nitrogen applications contribute to the decline in soil organic carbon stocks. Afforestation of abandoned cultivated fields can increase soil organic carbon, but it is still lower than soils under forest that have never been cultivated.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Zhiyuan Yao, Chuanxiong Huang, Huiling Hu, Tao Wang, Yulong Li, Xiaoming Sune, Sina Adl, Bo Zhu
Summary: Enhancing soil organic carbon levels through improved fertilization strategies is important for soil health and sustainable crop production. This study found that the relative abundance of organisms from higher trophic levels and increased network complexity in the soil micro-food webs are vital contributors to effective SOC accumulation.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
Article
Agriculture, Multidisciplinary
Qing Qu, Lei Deng, Zhouping Shangguan, Jian Sun, Jinsheng He, Kaibo Wang, Zhengchao Zhou, Jiwei Li, Josep Penuelas
Summary: Grazing exclusion is a widely implemented strategy for restoring degraded grassland ecosystems and increasing carbon stocks. This study analyzed data from 199 experiments to understand the temporal responses and factors influencing plant and soil carbon stocks following grazing exclusion in different grassland ecosystems. The results showed that plant biomass carbon stocks and soil organic carbon stocks decreased exponentially or rationally with years since enclosure. Grazing exclusion had positive effects on aboveground biomass carbon, but the effects on belowground biomass and soil carbon were influenced by climate, initial carbon levels, and grazing exclusion duration. The response of carbon stocks to grazing exclusion stabilized after approximately 40 years, with soil carbon sequestration showing a lagged pattern compared to plant biomass carbon. The study highlighted the effectiveness of grazing exclusion in regions with low carbon content and non-water limited conditions. However, it might not be an effective measure to increase soil organic carbon stocks in water-limited areas like desert grasslands.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2024)
