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Nitrogen addition decreased soil respiration and its components in a long-term fenced grassland on the Loess Plateau

文献类型：期刊论文

作者Wei, Lin1,4; Su, Jishuai2; Jing, Guanghua1,4; Zhao, Jie2; Liu, Jian2; Cheng, Jimin1,2,3; Jin, Jingwei3
刊名JOURNAL OF ARID ENVIRONMENTS
出版日期2018-05-01
卷号152页码:37-44
关键词Soil respiration Microbial respiration Root respiration N addition Q(10) value
ISSN号0140-1963
DOI10.1016/j.jaridenv.2018.01.017
通讯作者Cheng, Jimin(gyzcjm@ms.iswc.ac.cn) ; Jin, Jingwei(jinjingweisoil2008@163.com)
英文摘要Knowledge of the impact of N enrichment on soil respiration components is critical for understanding carbon (C) cycling and its feedback processes with climate change. We conducted three N level addition experiments, control (CK, 0 g N m(-2)yr(-1)), low nitrogen addition (LN, 10 g N m(-2)yr(-1)), and high nitrogen addition (HN, 20 g N m(-2)yr(-1))) to investigate the response of microbial and root respiration to N enrichment in a long-term fenced grassland on the Loess Plateau of China. Compared to the control, both the LN and HN treatments generally decreased soil respiration and its two components for both years. Under N addition, the decreased rates of root respiration and microbial respiration were significantly and positively correlated with the monthly root production and soil microbial biomass C, respectively. Nitrogen addition decreased the Q(10) values of root and microbial respiration, with the reduction more pronounced in root respiration. Overall, our results suggest that N enrichment may reduce the soil C loss through CO2 emissions. With global warming, soil C loss will be less due to the lower Q(10) values of root and microbial respiration on the Loess Plateau of China under future scenarios of N deposition.
WOS关键词SEMIARID GRASSLAND ; TEMPERATE STEPPE ; CO2 EFFLUX ; TIBETAN PLATEAU ; DIFFERENTIAL RESPONSES ; ECOSYSTEM RESPIRATION ; NORTHEASTERN CHINA ; MICROBIAL BIOMASS ; GRAZING EXCLUSION ; TALLGRASS PRAIRIE
资助项目Spatial scale effect of land use impact on runoff in the Loess Plateau under climate change of the National Natural Science Foundation of China[41230852] ; Natural Science Foundation of China[31601987] ; Strategic Priority Research Program-Climate Change: Carbon Budget and Related Issues of the Chinese Academy of Sciences[XDA05050202]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000429755800006
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
资助机构Spatial scale effect of land use impact on runoff in the Loess Plateau under climate change of the National Natural Science Foundation of China ; Natural Science Foundation of China ; Strategic Priority Research Program-Climate Change: Carbon Budget and Related Issues of the Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/57402]  
专题中国科学院地理科学与资源研究所
通讯作者Cheng, Jimin; Jin, Jingwei
作者单位1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
2.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Peoples R China
3.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Wei, Lin,Su, Jishuai,Jing, Guanghua,et al. Nitrogen addition decreased soil respiration and its components in a long-term fenced grassland on the Loess Plateau[J]. JOURNAL OF ARID ENVIRONMENTS,2018,152:37-44.
APA Wei, Lin.,Su, Jishuai.,Jing, Guanghua.,Zhao, Jie.,Liu, Jian.,...&Jin, Jingwei.(2018).Nitrogen addition decreased soil respiration and its components in a long-term fenced grassland on the Loess Plateau.JOURNAL OF ARID ENVIRONMENTS,152,37-44.
MLA Wei, Lin,et al."Nitrogen addition decreased soil respiration and its components in a long-term fenced grassland on the Loess Plateau".JOURNAL OF ARID ENVIRONMENTS 152(2018):37-44.

入库方式： OAI收割

来源：地理科学与资源研究所

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