Article
Environmental Sciences
Zheng-Rong Kan, Wen-Xuan Liu, Wen-Sheng Liu, Cong He, N'dri Yves Bohoussou, Yash Pal Dang, Xin Zhao, Hai-Lin Zhang
Summary: Soil sieving can lead to a temporary increase in mineralization, affecting estimates of SOC mineralization, especially in soils managed with NT. Although sieved soils may overestimate SOC mineralization and underestimate Q10, sieving soil is still considered a suitable approach to evaluate the relative impacts of NT and RR on SOC mineralization and Q10.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Yue Liu, Jisong Yang, Kai Ning, Andong Wang, Qiuxian Wang, Xuehong Wang, Shuwen Wang, Zhenbo Lv, Yajie Zhao, Junbao Yu
Summary: The study reveals that wetland type and soil depth significantly affect the Q(10) values of anaerobic soil organic matter decomposition. Different wetland types and soil depths show distinct differences in Q(10) values, and total organic carbon, salinity, and pH have varying impacts on the Q(10) values of the decomposition process.
ECOLOGICAL INDICATORS
(2021)
Article
Agronomy
Xiuwei Zhang, Biao Zhu, Fei-Hai Yu, Peng Wang, Weixin Cheng
Summary: This study found that the priming effect (PE) of relatively stabilized soil organic matter (SOM) is sensitive to temperature. Unlike the old field soil, the PE in bare fallow soil was significantly enhanced with increasing temperature. Additionally, the addition of litter resulted in a greater increase in microbial biomass C in bare fallow soil compared to old field soil, and temperature increase led to a higher net N mineralization rate in litter-treated bare fallow soil.
Article
Ecology
Junqia Kong, Zhibin He, Longfei Chen, Shouke Zhang, Rong Yang, Jun Du
Summary: The response of soil organic matter decomposition to temperature in alpine forest soils is influenced by patterns and elevational controls. The study found that the decomposition rate of soil organic matter increased with increasing elevation and was more sensitive to warming at high altitudes. Soil organic carbon and aggregate-associated organic carbon were identified as key factors affecting decomposition rate and temperature sensitivity.
Article
Environmental Sciences
Xiting Zhang, Shengxian Chen, Yanbo Yang, Qiong Wang, Yan Wu, Zhiqiang Zhou, Huimei Wang, Wenjie Wang
Summary: This study compared the difference in soil organic carbon (SOC) sequestration and stability between farmland and shelterbelt forests by collecting soil samples. The results showed that shelterbelt forests had significantly higher SOC concentration than farmland, while there was no significant difference in SOC respirational decomposition rate between the two. The respiration patterns of both shelterbelt forests and farmland changed with increasing soil moisture. The stability of SOC was influenced by geographic-climate factors and soil properties. The findings suggest that these SOC changes can improve the carbon sequestration function of shelterbelt forests.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Soil Science
Dmitry Fomin, Maria Timofeeva, Olga Ovchinnikova, Ilya Valdes-Korovkin, Andrey Holub, Anna Yudina
Summary: This study aims to validate the dry sieving procedure, suggest an optimal sieving regime for different soil samples, propose a formula for calculating total sieving energy, and introduce indicators for mechanical stability of soil structure. The meta-analysis revealed that many previous studies used insufficient sieving energy, resulting in the aggregate size distribution not reaching equilibrium. A detailed protocol for soil dry sieving analysis is also provided.
SOIL & TILLAGE RESEARCH
(2021)
Article
Biodiversity Conservation
Jun Pan, Nianpeng He, Yuan Liu, Li Xu, Mingxu Li, Chao Li
Summary: This study reveals the significant impact of incubation temperature range (ITR) scenarios on the temperature sensitivity (Q(10)) of soil organic matter (SOM) decomposition, which is often overlooked. The results suggest that the growing season average temperature range (GSA) scenario performs better than other ITR scenarios and should be considered as the optimum ITR scenario. Additionally, accounting for the variation of main influence factors of Q(10) across different ecosystems is crucial for accurate prediction of the feedback between soil carbon cycle and climate change.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Xiaomei Chen, Muying Liu, Zhanying Xu, Hui Wei
Summary: Abiotic processes contribute significantly to CO2 emission in biologically active soil, likely originating from degradation of soil organic carbon through thermal degradation and oxidation of reactive oxygen species. Abiotic soil CO2 emission is less sensitive to changes in temperature and moisture compared to biotic processes, which may increase uncertainty in predicting carbon cycling in ecosystems with high biological activities.
CARBON BALANCE AND MANAGEMENT
(2021)
Article
Environmental Sciences
Zhihan Yang, Xinrui Luo, Yuehong Shi, Tao Zhou, Ke Luo, Yunsen Lai, Peng Yu, Liang Liu, Alexander Olchev, Ben Bond-Lamberty, Dalei Hao, Jinshi Jian, Shaohui Fan, Chunju Cai, Xiaolu Tang
Summary: This study used a machine learning approach to predict the temperature sensitivity (Q10) of soil respiration at a 1 km resolution across China. The results showed that Q10 varied from 1.54 to 4.17, with a weighted average of 2.52. Soil organic carbon was identified as the most important driving factor for Q10, and the spatial and temporal variations were influenced by different environmental factors.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biodiversity Conservation
Xiaowei Guo, Xiali Mao, Wu Yu, Liujun Xiao, Mingming Wang, Shuai Zhang, Jinyang Zheng, Hangxin Zhou, Lun Luo, Jinfeng Chang, Zhou Shi, Zhongkui Luo
Summary: Soil biogeochemical processes exhibit depth-dependent responses to climate change. This study presents an innovative and cost-effective approach of field incubation of intact soil cores to explore this depth dependence. The results indicate that soil respiration responds significantly to climate shifts induced by translocation experiments, but this response is independent of soil depth.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Soil Science
Ronglin Su, Xian Wu, Jinli Hu, Huabin Li, Hengbin Xiao, Jinsong Zhao, Ronggui Hu
Summary: The ongoing global warming is causing paddy soil to experience higher levels of carbon and nitrogen loss. This study investigates the effects of temperature on soil organic matter (SOM) decomposition and microbial characteristics in different soil layers. The results show that warming promotes the decomposition of recalcitrant SOM and enhances the relative abundance of oligotrophic bacteria. Understanding these mechanisms is crucial for monitoring carbon dynamics in deep soil affected by global climate changes.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Soil Science
Mina Azizi-Rad, Georg Guggenberger, Yaoming Ma, Carlos A. Sierra
Summary: The decomposition rate of soil organic carbon (SOC) in alpine environments is influenced by various factors, with temperature being the main control. However, the temperature sensitivity of decomposition around freezing point may differ from higher temperature ranges. This study used soil samples from the Tibetan Plateau to investigate the effects of temperature, soil moisture, and oxygen concentration on SOC decomposition. The results showed that temperature had the strongest influence on decomposition rate, while the sensitivity to temperature remained constant except around 0 degrees C. Additionally, soil moisture and oxygen concentration had limited effects on decomposition rate, but small changes within narrow ranges could lead to significant changes in decomposition rates.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Biodiversity Conservation
H. B. Xiao, Z. H. Shi, Z. W. Li, J. Chen, B. Huang, Z. J. Yue, Y. M. Zhan
Summary: Land use types significantly affect the soil carbon and nitrogen levels, with grassland and woodland showing higher levels due to higher plant residues and lower human disturbance. Soil respiration (Rs) decreases from summer to winter, influenced mainly by soil temperature and moisture. Q10 values vary across different land use types, with temperature, pH, microbial biomass nitrogen, microbial biomass carbon, bacterial abundance, available nitrogen, and soil moisture being the most important predictors of Rs.
ECOLOGICAL INDICATORS
(2021)
Article
Soil Science
Mengguang Han, Weifeng Gao, Baoku Shi, Guangze Jin
Summary: This study reveals that forest thinning can reduce the temperature sensitivity of soil respiration and heterotrophic respiration during the mid-growing season, and increase long-term soil CO2 emission.
Article
Microbiology
Lei Jiang, Xiuyan Ma, Yanyu Song, Siqi Gao, Jiusheng Ren, Hao Zhang, Xianwei Wang
Summary: Climate warming and labile carbon addition affect the carbon cycle of northern peatlands. Warming stimulates SOC mineralization, while glucose addition triggers different priming effects in early and late stages. Glucose regulates carbon dynamics by altering fungal and bacterial activities, as well as carbon and nitrogen content. Labile carbon can partially inhibit warming-induced carbon emission increase and reduce carbon losses.
Letter
Ecology
Cindy E. Prescott, Sue J. Grayston, Helja-Sisko Helmisaari, Eva Kastovska, Christian Korner, Hans Lambers, Ina C. Meier, Peter Millard, Ivika Ostonen
TRENDS IN ECOLOGY & EVOLUTION
(2021)
Article
Soil Science
Yuan Li, Timothy J. Clough, Gabriel Y. K. Moinet, David Whitehead
Summary: The study found that as soil gas diffusivity decreased, N2O emissions increased exponentially, with glucose leading to higher peak emissions compared to acetate. N2O, N-2, and CO2 emissions were influenced by soil gas diffusivity as well as substrate type, demonstrating the complex interplay between carbon substrates and denitrification process.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2021)
Article
Soil Science
Jonathan Nunez, Gabriel Y. K. Moinet, Scott L. Graham, Matthew H. Turnbull, Gwen-Aelle Grelet, David Whitehead
Summary: The addition of sorptive mineral phases to soils can rapidly and proportionally reduce soil organic matter (SOM) decomposition, leading to decreased microbial access to SOM. This effect occurs independently of soil organic carbon concentration and pH, suggesting a universal impact on SOM stability.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2022)
Article
Biodiversity Conservation
Gabriel Y. K. Moinet, Manpreet K. Dhami, John E. Hunt, Anastasija Podolyan, Liyin L. Liang, Louis A. Schipper, David Whitehead, Jonathan Nunez, Adriano Nascente, Peter Millard
Summary: The study found that soil microbial communities adapt to long-term warming, but substrate quality and quantity exert a stronger influence on selecting for distinct thermal traits than temperature.
GLOBAL CHANGE BIOLOGY
(2021)
Letter
Soil Science
Adriano S. Nascente, Jonathan Nunez, Scott L. Graham, Gabriel Y. K. Moinet, John E. Hunt, Graeme N. D. Rogers, David Whitehead
Article
Soil Science
Yuan Li, Gabriel Y. K. Moinet, Timothy J. Clough, John E. Hunt, David Whitehead
Summary: Intensification of grazed grasslands following conversion from dryland to irrigated farming has the potential to alter ecosystem carbon cycling and affect components of CO2 exchange. Managing irrigation frequency could reduce belowground respiratory C losses without significant effects on biomass production and greenhouse gas emission.
Review
Agronomy
Heitor Mancini Teixeira, Rogier P. O. Schulte, Niels P. R. Anten, Leosane C. Bosco, Jantiene E. M. Baartman, Gabriel Y. K. Moinet, Pytrik Reidsma
Summary: This paper presents a systematic literature review on the impact of diversification on agroforestry coffee systems and their sustainability. The findings indicate that diversification has a positive impact on most dimensions of system sustainability, particularly in terms of ecosystem services and biodiversity. However, the lack of interdisciplinary and systemic perspectives in existing studies is a limitation. Additionally, there is a need for further research on the impacts of diversification on input use, socio-economic sustainability, and resilience capacity, as well as specific biodiversity attributes and ecosystem services.
AGRONOMY FOR SUSTAINABLE DEVELOPMENT
(2022)
Article
Soil Science
Jonathan Nunez, Kate H. Orwin, Gabriel Y. K. Moinet, Scott L. Graham, Graeme N. D. Rogers, Matthew H. Turnbull, Timothy J. Clough, Andrew Dopheide, Carina Davis, Gwen-Aelle Grelet, David Whitehead
Summary: Nitrogen inputs in agricultural systems have significant impacts on soil nitrate concentrations, increasing NO3- leaching and groundwater contamination. Previous studies have mainly focused on the role of soil microbes in regulating NO3- concentrations in the topsoil, neglecting their influence in the subsoil. This study examined the relationships between microbial properties and NO3- concentrations in both the topsoil and subsoil, revealing the important role of microbial regulation in subsoil NO3- concentrations.
APPLIED SOIL ECOLOGY
(2022)
Article
Biodiversity Conservation
Gabriel Y. K. Moinet, Renske Hijbeek, Detlef P. van Vuuren, Ken E. Giller
Summary: The role of soil organic carbon (SOC) sequestration as a 'win-win' solution to both climate change and food insecurity is critically examined in this article. The inclusion of SOC saturation in estimations significantly reduces the potential contribution of SOC sequestration to climate change mitigation, and the observed yield effects of increasing SOC are inconsistent. The article argues for a shift towards soil-smart agriculture that takes into account specific local conditions and quantifies multiple soil functions for land sustainability and food security.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Environmental Sciences
Yuan Li, Gabriel Y. K. Moinet, Timothy J. Clough, David Whitehead
Summary: This study investigated the effects of C and N substrate addition on the linkages between SOM priming and N2O emissions. It found that adding carbon substrate increased both CO2- and SOM-derived N2O emissions in the presence of exogenous N, with different types of carbon substrates having varying effects on soil emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Soil Science
Max Fuchs, Hanna Frick, Gabriel Y. K. Moinet, Marius Mayer, Else Katrin Buenemann
Summary: Fertilisation with animal manure has a long tradition in farms for closing nutrient cycles, but the fate of nitrogen from manure in the soil remains poorly understood. This study aimed to understand the residual nitrogen fertiliser value of mineral fertiliser and cattle slurry in different soil fractions, and also compared two fractionation methods for accuracy and simplicity. Two years after application, most of the nitrogen was found in the fractions smaller than 20 μm, specifically in the mineral-associated organic matter (MAOM). About 2% of the applied nitrogen was available to ryegrass plants, with the majority originating from MAOM.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Food Science & Technology
Nick W. Smith, Andrew J. Fletcher, Peter Millard, Jeremy P. Hill, Warren C. McNabb
Summary: This study presents a mathematical model that can forecast the future cropland requirement for a given quantity of crop mass, in conjunction with the DELTA Model that calculates global availability of 29 nutrients against human requirements. The results show that crops with the greatest yield variation between high and low production are nuts, fruits, and vegetables. The potential for increasing global food production lies in improving yield for maize, wheat, and rice.
FRONTIERS IN SUSTAINABLE FOOD SYSTEMS
(2022)