Article
Forestry
Ming Ouyang, Chen Yang, Di Tian, Jiamin Pan, Guoping Chen, Haojie Su, Zhengbing Yan, Chengjun Ji, Zhiyao Tang, Jingyun Fang
Summary: The study conducted comprehensive surveys and measurements of Moso bamboo forests in China, providing accurate estimations of bamboo forest biomass and revealing its proportion in the total national forest biomass in China.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Plant Sciences
Fu Cai, Na Mi, Huiqing Ming, Yushu Zhang, Hui Zhang, Shujie Zhang, Xianli Zhao, Bingbing Zhang
Summary: Dry matter accumulation and partitioning in maize were studied under drought stress and rewatering conditions. The results showed that reproductive organs were more sensitive to drought and their dry matter accumulation was affected even after rehydration. Drought during vegetative growth reduced stalk dry matter more than leaves, while drought during reproductive growth significantly decreased leaf dry matter. Drought increased the dry matter partitioning rates of vegetative organs and decreased the partitioning rates of ears, leading to reduced harvest index. The persistence of drought impact depended on the occurrence stage and degree of drought, as well as the duration of rewatering.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Haotian Li, Lu Li, Na Liu, Zimeng Liu, Yang Lu, Liwei Shao
Summary: Breeding cultivars that can maintain high production and water productivity under various growing conditions is important for mitigating freshwater shortage problems. This study assessed the changes in yield and water productivity of different winter wheat cultivars under different water levels. The results showed that the cultivar released in the 2010s had significantly improved yield and water productivity compared to that released in the 1970s. The improvement in yield was mainly attributed to higher photosynthetic capacity and greater above-ground biomass accumulation, while traits related to yield and water productivity improvements included increased harvest index and reduced root: shoot ratio.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Ecology
Yanrong Guo, Liang Chen, Yubo Luo, Yang Liu
Summary: This study used a machine learning algorithm to explore the spatial patterns of root-shoot ratios in China's forests and their association with various factors. The estimated biomass turnover time was also calculated. The results provide valuable information for assessing model performance and improving carbon-cycle assessments in the future.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2022)
Article
Forestry
Janis Liepins, Kaspars Liepins, Andis Lazdins
Summary: The study aims to derive individual tree allometric equations for grey and common alder based on data sets obtained in Latvia. Current biomass functions in the national forest inventory overestimate grey alder and underestimate common alder biomass stocks. The existing local aboveground biomass equation has good predictive ability compared to the derived equations in this study.
SCANDINAVIAN JOURNAL OF FOREST RESEARCH
(2021)
Article
Agronomy
Lu Li, Huaiqiang Liu, Taogetao Baoyin
Summary: Quantifying the long-term effects of mowing on soil organic carbon (SOC) is important for understanding carbon cycle changes in grassland ecosystems and managing grassland strategies. This study investigated SOC content and storage in different mowing regimes in the semiarid grasslands of northern China. The results showed that SOC storage and microbial biomass C (MBC) decreased with soil depth, and all mowing frequencies caused declines in SOC storage and MBC. However, the root-to-shoot ratio (R:S) increased. SOC storage was highest under no mowing and followed the order of no mowing > mowing once every 2 years > mowing twice every 3 years > mowing once a year > mowing twice a year at 0-20 cm soil depth. There was no significant difference in the five mowing frequencies at 20-30 cm depth. Different mowing regimes influenced soil carbon storage by altering vegetation productivity, litter, plant community composition, soil microbial biomass, and resource allocation between aboveground plants and belowground roots.
Review
Agronomy
Henrike Heinemann, Juliane Hirte, Felix Seidel, Axel Don
Summary: Optimised genotype selection can increase root biomass by 22% and crop yield by 52% without compromising soil organic carbon stocks. This review demonstrates the potential of this approach for increasing carbon sequestration in agricultural soils.
Article
Forestry
Israel Oren, Neringa Mannerheim, Andreas Fangmeier, Nina Buchmann, Jose M. Grunzweig
Summary: This study fills the gap in understanding the respiratory CO2 flux of roots at the total root system scale and quantifies the daily C budget of the tropical tree species Ceiba pentandra. The results suggest that monitoring the entire root system is crucial for understanding the tree CO2 budget, and that the contribution of coarse-root respiration to the total root system respiration may be greater than appreciated.
Article
Plant Sciences
Faris Rafi Almay Widagdo, Lihu Dong, Fengri Li
Summary: This study investigated the impact of origin on biomass equations for Pinus koraiensis in northeast China by comparing natural stands and plantation sites. The results showed that including the origin's effect in dummy variable models significantly improved model performance, and incorporating tree total height as an additional predictor increased model accuracy. Additionally, variations in biomass allocation, carbon content, and root-to-shoot ratio were found between samples from plantations and natural forests.
Article
Plant Sciences
Harun Bektas, Christopher E. Hohn, Adam J. Lukaszewski, John Giles Waines
Summary: Numerous studies have shown that a larger root biomass is associated with increased above-ground biomass under limited water supply, and this relationship is influenced by genetic control and environmental factors. This study analyzes the relationship between shoot and root biomass in bread wheat and its wild relatives using a large dataset. The results show a positive correlation between shoot and root biomass, with the correlation values increasing over time. Further analysis suggests that increasing root biomass beyond a certain point may negatively impact shoot biomass. The study also highlights the different responses of two wheat cultivars to water availability scenarios, emphasizing the need to breed wheat varieties for specific environmental challenges.
Article
Environmental Sciences
Yanqiang Jin, Chenggang Liu, Song S. Qian, Yiqi Luo, Ruiwu Zhou, Jianwei Tang, Weikai Bao
Summary: A large-scale study on understory biomass distribution in Chinese forests found variation in biomass and R/S ratio with forest types, longitude, latitude, elevation, mean annual temperature, and mean annual precipitation. Stand structure strongly influenced understory biomass variation, while mean annual precipitation was identified as the most important driver of R/S ratio. This study sheds light on the mechanisms behind understory biomass variation and allocation at a broad geographic scale.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Plant Sciences
Petia Simeonova Nikolova, Jan Geyer, Peter Brang, Paolo Cherubini, Stephan Zimmermann, Holger Gartner
Summary: Silvicultural interventions like strip cuttings can alter resource availability for trees at forest edges, potentially changing root-shoot allometry. This study found that strip cutting led to increased root growth and optimized resource uptake, with strongest effects seen in regularly managed stands with tall trees. However, the changes in root-stem allometry post-cutting were short-lived, with the most significant effects seen in smaller, previously suppressed trees. Further analysis of stable isotopes is recommended for a more mechanistic understanding of environmental drivers.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Maliheh Shaltouki Rizi, Mohsen Mohammadi
Summary: Boosting soil carbon by adding it to the soil is a climate mitigation strategy. In this study, breeding populations of wheat were developed to increase root biomass and carbon storage in soil. The results showed that breeding can successfully increase root biomass in wheat while maintaining or increasing grain yield.
Article
Soil Science
Jiayu Lu, Feike A. Dijkstra, He Wang, Peng Wang, Weixin Cheng
Summary: This study finds that live roots of non-woody perennials can accelerate the decomposition of soil organic matter even during non-growing seasons, a phenomenon known as rhizosphere priming effect.
Article
Forestry
Cornelia Krause, Audrey Lemay
Summary: This study investigated the growth potential and root system adaptation of black spruce under water-saturated soil conditions. The results showed that black spruce has a shallow root system with most roots being adventitious, and the biomass accumulation of black spruce growing under saturated soil conditions was lower. However, the root-shoot ratio remained similar across different drainage regimes.
CANADIAN JOURNAL OF FOREST RESEARCH
(2022)
Article
Environmental Sciences
Menghan Wang, Fucui Li, Lili Dong, Xiang Wang, Liebao Han, Jurgen E. Olesen
Summary: Increases in nitrogen deposition have the potential to impact the organic carbon cycle in soil. The effects of nitrogen addition on soil organic carbon pools are inconsistent, highlighting the need for quantifying the response of organic carbon pool distribution to nitrogen addition. Furthermore, the influence of adding a mixture of organic and inorganic nitrogen on organic carbon pool distribution and stabilization in grassland soil remains unclear.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Jared Onyango Nyang'au, Henrik Bjarne Moller, Peter Sorensen
Summary: This study evaluated the effects of electrokinetic and ultrasonication pre-treatments on biowastes in a two-step anaerobic digestion process. The results showed that electrokinetic pre-treatment increased the NH4+-N/total N ratio in the digestates, while ultrasonication pre-treatment had no significant effect on the fertiliser value. The second AD step significantly reduced ammonia losses and increased the fertiliser equivalence in winter wheat.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agriculture, Multidisciplinary
Xiaoyi Meng, Peter Sorensen, Henrik B. Moller, Soren O. Petersen
Summary: This study investigated the effects of different treatments on greenhouse gas emissions from cattle manure. The results showed that anaerobic digestion and solid-liquid separation reduced methane emissions. The processed manure materials had similar yields and nitrogen use efficiencies as inorganic fertilizer.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Agronomy
Alireza Araghi, Christopher J. Martinez, Jorgen E. Olesen
Summary: This study assessed the accuracy of a gridded weather dataset called MSWX in modeling wheat performance in Iran. The results showed that MSWX temperature had higher accuracy than AgERA5, while MSWX solar radiation had weaker performance. It was found that MSWX temperature data could be the best replacement for measured temperature data in the study area.
EUROPEAN JOURNAL OF AGRONOMY
(2023)
Article
Agronomy
Chiara De Notaris, Ea Elisabeth Enggrob, Jorgen E. Olesen, Peter Sorensen, Jim Rasmussen
Summary: Increasing grain legume production in Europe has multiple benefits, including protein self-sufficiency and environmental advantages such as biological nitrogen fixation. Faba bean is the main grain legume grown in Europe, with growing interest from the organic sector. However, the inclusion of grain legumes in cropping systems faces agronomic and economic challenges that can be overcome by considering ecosystem services.
FIELD CROPS RESEARCH
(2023)
Article
Agronomy
Peter Sorensen, Betina N. N. Pedersen, Ingrid K. K. Thomsen, Jorgen Eriksen, Bent T. T. Christensen
Summary: This study investigated the long-term lability of mineral fertilizer nitrogen (N) in an agricultural soil. The results showed that crop uptake and leaching of N were highest in the first year after the set-aside period, and the addition of autumn vegetation was crucial for reducing leaching losses.
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2023)
Article
Agronomy
Li Zhang, Haoyu Zheng, Wenjie Li, Jorgen Eivind Olesen, Matthew Tom Harrison, Zhiyuan Bai, Jun Zou, Axiang Zheng, Carl Bernacchi, Xingyao Xu, Bin Peng, Ke Liu, Fu Chen, Xiaogang Yin
Summary: By analyzing the factors contributing to the increase in soybean productivity in China, it was found that genetic progress plays a significant role in yield gains in different regions. The increase in yield in the Northeast region is mainly attributed to an increase in the number of pods per plant, while in the Huang-Huai-Hai Plain and Southern Multi-cropping Region, both pod number per plant and 100-grain weight contribute to yield gains. Genetic progress also reduces the sensitivity of higher yielding cultivars to heat stress. This research emphasizes the importance of genetic improvement in ensuring sustainable food security.
AGRONOMY FOR SUSTAINABLE DEVELOPMENT
(2023)
Article
Agronomy
Wenhai Huang, Yuhao Yang, Haoyu Zheng, Jorgen Eivind Olesen, Robert M. Rees, Jun Zou, Li Zhang, Suya Hu, Bowen Qiao, Xiaohui Wang, Shuaijie Shen, Biaoding Yang, Zhiyuan Bai, Axiang Zheng, Wenjie Li, Zhenwei Song, Xinya Wen, Fu Chen, Xiaogang Yin
Summary: This study evaluated the effects of different fertilizer nitrogen inputs on the yield and biological nitrogen fixation (BNF) of summer peanut in the North China Plain (NCP). The results showed that the optimal nitrogen application rate for achieving high nitrogen use efficiency (NUE) and low nitrogen losses without sacrificing yield was 150 kg N ha-1, which resulted in a yield of 3915 kg ha-1 and NUEoi of 73.0% in the summer-peanut production. These findings have important implications for the sustainable development of summer-peanut systems.
FIELD CROPS RESEARCH
(2023)
Article
Biodiversity Conservation
Jorgen E. Olesen, Robert M. Rees, Sylvie Recous, Marina A. Bleken, Diego Abalos, Ishita Ahuja, Klaus Butterbach-Bahl, Marco Carozzi, Chiara De Notaris, Maria Ernfors, Edwin Haas, Sissel Hansen, Baldur Janz, Gwenaelle Lashermes, Raia S. Massad, Soren O. Petersen, Tatiana F. Rittl, Clemens Scheer, Kate E. Smith, Pascal Thiebeau, Arezoo Taghizadeh-Toosi, Rachel E. Thorman, Cairistiona F. E. Topp
Summary: Crop residues play a crucial role in carbon and nitrogen input to soils, affecting nitrous oxide emissions. The current inventory methodology only considers nitrogen inputs by crop residues, ignoring other factors and processes. Different biochemical and physical characteristics of residues contribute to variations in emissions, with immature residues having higher concentrations of mineralizable nitrogen and decomposable carbon. Accurately estimating the short-term and long-term effects of crop residues on N2O emissions requires distinguishing between mature and immature residues and considering local conditions. Better mitigation efforts and emission accounting methods are urgently needed.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Biodiversity Conservation
Yong Zhang, Xiaoli Cheng, Kees Jan van Groenigen, Pablo Garcia-Palacios, Junji Cao, Xunhua Zheng, Yiqi Luo, Bruce A. Hungate, Cesar Terrer, Klaus Butterbach-Bahl, Jorgen Eivind Olesen, Ji Chen
Summary: Anthropogenic nitrogen loading affects the abundance of soil ammonia-oxidizing archaea and bacteria, leading to changes in soil nitrification. Climate is the most important factor determining the response of the ammonia-oxidizing community to nitrogen loading, and it affects nitrification indirectly through its influence on the ammonia-oxidizing community.
GLOBAL CHANGE BIOLOGY
(2023)
Editorial Material
Food Science & Technology
Davide Cammarano, Jorgen Eivind Olesen, Katharina Helming, Christine Helen Foyer, Martin Schoenhart, Gianluca Brunori, Keerthi Kiran Bandru, Marco Bindi, Gloria Padovan, Bo Jellesmark Thorsen, Florian Freund, Diego Abalos
Summary: The lack of strong interconnection between research, policy, and societal action inhibits climate change mitigation in agri-food systems. Modelling tools, international superordinate bodies, and stakeholder-inclusive assessment frameworks can facilitate better alignment between these three pillars of human progress.
Article
Environmental Sciences
Haoyang Wang, Teng Hu, Minghan Wang, Yunshan Liang, Chengwen Shen, Huaqin Xu, Yaoyu Zhou, Zhonghua Liu
Summary: This study investigated the effect of different amounts of biochar on fluoride (F) content in tea leaves during tea plant growth. The results showed that biochar amendment significantly reduced water-soluble F content in tea leaves, especially in the 8.0% treatment. Biochar also contributed to improving tea polyphenols and caffeine. However, it had no significant impact on free amino acids and water leachate. The application of biochar also increased soil water-soluble F content and decreased exchangeable aluminum content, which can help reduce F enrichment of tea leaves.
Article
Green & Sustainable Science & Technology
Arezoo Taghizadeh-Toosi, Khagendra Raj Baral, Peter Sorensen, Soren Petersen
Summary: This study compares the effects of two different methods of slurry application on soil mineral nitrogen dynamics and nitrous oxide emissions. The results show that placing the untreated slurry in a broad band under maize seeds reduces nitrous oxide emissions. Adding a nitrification inhibitor to non-placed slurry can achieve a similar reduction in emissions. However, adding the inhibitor to placed slurry results in a complex pattern of nitrous oxide emissions that requires further investigation.
Article
Agriculture, Multidisciplinary
Soren O. Petersen, Leanne E. K. Peixoto, Helle Sorensen, Azeem Tariq, Andreas Braendholt, Line Vinther Hansen, Diego Abalos, Alice Thoft Christensen, Cecilie Skov Nielsen, Johannes W. M. Pullens, Sander Bruun, Lars Stoumann Jensen, Jorgen E. Olesen
Summary: This study presents the first estimates of country-specific N2O emissions from synthetic and liquid organic fertilisers in Denmark, and finds that organic fertilisers have higher N2O emissions compared to synthetic fertilisers.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Soil Science
Linsen Du, Hua Wang, Zhen Zhang, Yaoyu Zhou, Zhiyu Xiao, Muhammad Shaaban, Avelino Nunez-Delgado, Geng Sun, Yelan Yu, Zhihua Xiao, Teng Hu
Summary: Rice-crayfish integrated farming can significantly enhance the accumulation of soil carbon, nitrogen, and phosphorus. Long-term farming has an impact on soil CNP storage and stoichiometry. Regulation of fertilizer input and improving feed utilization efficiency are crucial for ensuring soil nutrient balance and sustainable development.
SOIL & TILLAGE RESEARCH
(2024)
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)