Highly spatial variation of soil microbial respiration and temperature sensitivity in a subtropical forest

2021 ◽  
pp. 152197
Author(s):  
Bingwei Zhang ◽  
Yun Jiang ◽  
Dongxia Chen ◽  
Zongrui Wu ◽  
Buhang Li ◽  
...  
Keyword(s):  
Spatial Variation ◽  
Temperature Sensitivity ◽  
Microbial Respiration ◽  
Subtropical Forest ◽  
Soil Microbial ◽  
Soil Microbial Respiration

Effects of nitrogen additions on soil microbial respiration and its temperature sensitivity in a Tibetan alpine meadow

2018 ◽  
Vol 38 (7) ◽  
Author(s):  
叶成龙 YE Chenglong ◽  
张浩 ZHANG Hao ◽  
周小龙 ZHOU Xiaolong ◽  
周显辉 ZHOU Xianhui ◽  
郭辉 GUO Hui ◽  
...  
Keyword(s):  
Temperature Sensitivity ◽  
Alpine Meadow ◽  
Microbial Respiration ◽  
Soil Microbial ◽  
Soil Microbial Respiration ◽  
Nitrogen Additions

Effects of nitrogen addition on soil microbial respiration and its temperature sensitivity in a Duolun grassland ecosystem

2020 ◽  
Vol 40 (5) ◽  
Author(s):  
赵学超 ZHAO Xuechao ◽  
徐柱文 XU Zhuwen ◽  
刘圣恩 LIU Shengen ◽  
王清奎 WANG Qingkui
Keyword(s):  
Temperature Sensitivity ◽  
Microbial Respiration ◽  
Nitrogen Addition ◽  
Grassland Ecosystem ◽  
Soil Microbial ◽  
Soil Microbial Respiration

scholarly journals Lower Soil Carbon Loss Due to Persistent Microbial Adaptation to Climate Warming

2020 ◽  
Author(s):  
Xue Guo ◽  
Qun Gao ◽  
Mengting Yuan ◽  
Gangsheng Wang ◽  
Xishu Zhou ◽  
...  
Keyword(s):  
Microbial Community ◽  
Climate Warming ◽  
Temperature Sensitivity ◽  
Microbial Respiration ◽  
Ecosystem Model ◽  
Soil C ◽  
Spatial And Temporal Scales ◽  
Soil Microbial ◽  
Soil Microbial Respiration ◽  
C Cycle

AbstractSoil microbial respiration is an important source of uncertainty in projecting future climate and carbon (C) cycle feedbacks. Despite intensive studies for two decades, the magnitude, direction, and duration of such feedbacks are uncertain, and their underlying microbial mechanisms are still poorly understood. Here we examined the responses of soil respiration and microbial community structure to long-term experimental warming in a temperate grassland ecosystem. Our results indicated that the temperature sensitivity of soil microbial respiration (i.e., Q10) persistently decreased by 12.0±3.7% across 7 years of warming. Integrated metagenomic and functional analyses showed that microbial community adaptation played critical roles in regulating respiratory acclimation. Incorporating microbial functional gene abundance data into a microbially-enabled ecosystem model significantly improved the modeling performance of soil microbial respiration by 5–19%, compared to the traditional non-microbial model. Model parametric uncertainty was also reduced by 55–71% when gene abundances were used. In addition, our modeling analyses suggested that decreased temperature sensitivity could lead to considerably less heterotrophic respiration (11.6±7.5%), and hence less soil C loss. If such microbially mediated dampening effects occur generally across different spatial and temporal scales, the potential positive feedback of soil microbial respiration in response to climate warming may be less than previously predicted.

Effects of subtropical forest conversion on soil microbial respiration and its entropy

2020 ◽  
Vol 40 (3) ◽  
Author(s):  
纪娇娇 JI Jiaojiao ◽  
郑蔚 ZHENG Wei ◽  
杨智杰 YANG Zhijie ◽  
王全成 WANG Quancheng ◽  
熊德成 XIONG Decheng ◽  
...  
Keyword(s):  
Microbial Respiration ◽  
Subtropical Forest ◽  
Forest Conversion ◽  
Soil Microbial ◽  
Soil Microbial Respiration
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