Article
Geosciences, Multidisciplinary
Zi-Qiang Yuan, Xiao-Gang Feng, Jin-Yu Tian, Xin Song, Guo-Yu Li, Chao Fang
Summary: This study investigated the controlling factors of soil organic carbon (SOC) and total nitrogen (TN) in lucerne grasslands in the semiarid Loess Plateau, and found that soil resources, topography, vegetation, and soil interactions played important roles in influencing the SOC and TN contents.
Article
Agronomy
Lelia Weiland, Cheryl A. Rogers, Camile Sothe, M. Altaf Arain, Alemu Gonsamo
Summary: Soil respiration, a key ecosystem process, can be estimated using satellite-derived land surface temperature and soil moisture. This study evaluated three empirical models and a Random Forest algorithm, which were calibrated using in-situ measurements and validated against soil CO2 fluxes from automatic chambers. The results showed that satellite observations can explain over 70% of the variability in soil respiration and provide comparable accuracy to in-situ measurements.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Environmental Sciences
Jiaoyang Zhang, Zemin Ai, Hongwei Xu, Hongfei Liu, Guoliang Wang, Lei Deng, Guobin Liu, Sha Xue
Summary: Plant-soil feedback (PSF) is an important driver of plant community dynamics, with early successional plant species having a positive feedback effect on soil and subsequent plant species showing a negative feedback effect. The microbial responses to PSF vary with different plant successional stages, influencing the plant community composition.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agriculture, Multidisciplinary
Lingfei Yu, Wenjuan Sun, Yao Huang
Summary: Grazing exclusion has positive effects on plant and topsoil carbon accumulation, but its effects may change due to altered soil water conditions under climate change.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2021)
Article
Environmental Sciences
Zilong Ma, Bharat M. Shrestha, Edward W. Bork, Scott X. Chang, Cameron N. Carlyle, Timm F. Dobert, Laio Silva Sobrinho, Mark S. Boyce
Summary: The study found that adaptive multi-paddock grazing does not reduce greenhouse gas emissions from grasslands, and that the emissions are instead influenced by specific management attributes, environmental conditions, and soil properties.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Soil Science
Zhou Jia, Ping Li, Yuntao Wu, Sen Yang, Chengzhang Wang, Bin Wang, Lu Yang, Xin Wang, Jing Li, Ziyang Peng, Lulu Guo, Weixing Liu, Lingli Liu
Summary: Despite the fact that winter processes in temperate grasslands represent a third of the year, they are not well represented in global climate change studies. Increased snow depth due to climate change on the Mongolian Plateau is impacting grasslands alongside land use changes, affecting winter nitrogen budget. Manipulating snow depth under different land use practices revealed a decrease in nitrogen recovery due to deepened snow increasing soil temperature and microbial activity, leading to higher N2O emission.
BIOLOGY AND FERTILITY OF SOILS
(2021)
Article
Ecology
Jiahuan Li, Lizhu Guo, Gail W. T. Wilson, Adam B. Cobb, Kun Wang, Li Liu, Huan Zhao, Ding Huang
Summary: This study investigated the plant-soil-microbial dynamics of fairy rings in grasslands and found that the expansion of fairy rings leads to increased pathogen infection in plant roots, resulting in reduced growth. However, soil microbial activity at the ring-edge can promote plant growth.
BMC ECOLOGY AND EVOLUTION
(2022)
Article
Multidisciplinary Sciences
Maria Leticia Sabatt, Marcelo Juan Massobrio, Mariano Tomas Cassani, Fernando Roberto Momo
Summary: The study investigated the effects of changing land use from grassland to Eucalyptus plantation on soil food webs in the Rolling Pampas. They found differences in community diversity and composition between grasslands, 10-year-old Eucalyptus plantations, and 20-year-old Eucalyptus plantations. While there were no significant differences in the structure of soil food webs, the communities in the youngest plantations showed evidence of transition characteristics compared to grasslands and older plantations.
Article
Green & Sustainable Science & Technology
Xueyan Lu, Lu Wen, Haoyu Sun, Tao Fei, Huan Liu, Sina Ha, Shiming Tang, Lixin Wang
Summary: Anthropogenic activities have increased phosphorus deposition and affected the carbon cycle in grassland ecosystems. A meta-analysis of 41 studies and 75 independent study sites worldwide found that phosphorus addition significantly increased soil respiration in grasslands, but the response varied among different grassland ecosystem types.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Plant Sciences
Tom Lachaise, Joana Bergmann, Norbert Hoelzel, Valentin H. Klaus, Till Kleinebecker, Matthias C. Rillig, Mark van Kleunen
Summary: The "conservation" and "collaboration" gradients previously identified at the species level extend to the community level in grasslands, encompass more traits than previously described, and vary with the environment.
JOURNAL OF ECOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Xia Zhang, Zhenghui Xie, Zhuguo Ma, Greg A. Barron-Gafford, Russell L. Scott, Guo-Yue Niu
Summary: The study developed a microbial-explicit soil organic carbon decomposition model (MESDM) and improved our understanding and ability to simulate complex soil carbon dynamics that experience drying-wetting cycle in climate-carbon feedbacks.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2022)
Article
Plant Sciences
Ruyan Qian, Yanbin Hao, Linfeng Li, Zhenzhen Zheng, Fuqi Wen, Xiaoyong Cui, Yanfen Wang, Tong Zhao, Ziyang Tang, Jianqing Du, Kai Xue
Summary: Globally, droughts have a significant impact on carbon cycling. However, the specific responses of soil respiration to extreme droughts, regulated by seasonal timing and plant functional types, are not well understood. In this study, a manipulative drought experiment was conducted to investigate the importance of drought timing and plant types on soil respiration. The results showed that mid-drought had the greatest negative effects on soil respiration, while early-drought had little effect. Plant functional types also had significant effects on soil respiration under late drought. This study highlights the importance of considering seasonal timing and plant communities in predicting carbon dynamics under future droughts.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Yawei Li, Yuwei Chai, Jiantao Ma, Rui Li, Hongbo Cheng, Lei Chang, Shouxi Chai
Summary: Mulching practices can improve soil hydrothermal conditions and affect soil respiration. Straw mulching and plastic film mulching have different effects on soil respiration and heterotrophic respiration. Straw mulching decreases yield, while plastic film mulching increases yield. Mulching practices also have great potential for soil carbon sequestration.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Jianfei Yu, Yi Zhang, Yutao Wang, Xu Luo, Xiaoqian Liang, Xumei Huang, Yaxin Zhao, Xinyang Zhou, Jianping Li
Summary: The amount and intensity of precipitation have significant effects on plant growth and ecosystem carbon exchange in semiarid desert steppes. A field experiment in China found that changes in precipitation significantly affected ecosystem carbon fluxes, with decreasing precipitation leading to decreased ecosystem respiration, soil respiration, and net ecosystem CO2 exchange, while increasing precipitation increased gross ecosystem photosynthesis, ecosystem respiration, and net ecosystem CO2 exchange. Changes in precipitation also impacted soil moisture and aboveground biomass, contributing to uncertainty in carbon exchange and carbon sinks.
GLOBAL ECOLOGY AND CONSERVATION
(2022)
Article
Environmental Sciences
Kai Liu, Zunchi Liu, Nan Zhou, Xinrong Shi, T. Ryan Lock, Robert L. Kallenbach, Zhiyou Yuan
Summary: The diversity-stability relationships in grasslands are influenced by environmental factors and changes in soil pH. This study found that altered soil pH had negative impacts on community biodiversity and stability, especially in desert grasslands. Soil acidification and alkalization reduced community stability in desert and typical grasslands, respectively. However, altered soil pH did not affect community stability in meadow grasslands. The study also revealed that changes in soil nutrients, mediated by soil acidification and alkalization, were associated with species asynchrony and indirectly influenced community stability.
LAND DEGRADATION & DEVELOPMENT
(2022)
