Ambient precipitation determines the sensitivity of soil respiration to precipitation treatments in a marsh
Li, Xinge1,2,3,4; Hou, Yalin5; Chu, Xiaojing1,2,4; Zhao, Mingliang1,2,4; Wei, Siyu1,2,3; Song, Weimin1,2,4; Li, Peiguang1,2,4; Wang, Xiaojie1,2,4; Han, Guangxuan1,2,4,6
Source PublicationGLOBAL CHANGE BIOLOGY
ISSN1354-1013
2023-02-07
Pages12
Keywordambient precipitation field manipulation experiment marshes precipitation treatments sensitivity soil respiration
DOI10.1111/gcb.16581
Corresponding AuthorHan, Guangxuan(gxhan@yic.ac.cn)
AbstractThe effects in field manipulation experiments are strongly influenced by amplified interannual variation in ambient climate as the experimental duration increases. Soil respiration (SR), as an important part of the carbon cycle in terrestrial ecosystems, is sensitive to climate changes such as temperature and precipitation changes. A growing body of evidence has indicated that ambient climate affects the temperature sensitivity of SR, which benchmarks the strength of terrestrial soil carbon-climate feedbacks. However, whether SR sensitivity to precipitation changes is influenced by ambient climate is still not clear. In addition, the mechanism driving the above phenomenon is still poorly understood. Here, a long-term field manipulation experiment with five precipitation treatments (-60%, -40%, +0%, +40%, and +60% of annual precipitation) was conducted in a marsh in the Yellow River Delta, China, which is sensitive to soil drying-wetting cycle caused by precipitation changes. Results showed that SR increased exponentially along the experimental precipitation gradient each year and the sensitivity of SR (standardized by per 100 mm change in precipitation under precipitation treatments) exhibited significant interannual variation from 2016 to 2021. In addition, temperature, net radiation, and ambient precipitation all exhibited dramatic interannual variability; however, only ambient precipitation had a significant negative correlation with SR sensitivity. Moreover, the sensitivity of SR was significantly positively related to the sensitivity of belowground biomass (BGB) across 6 years. Structural equation modeling and regression analysis also showed that precipitation treatments significantly affected SR and its autotrophic and heterotrophic components by altering BGB. Our study demonstrated that ambient precipitation determines the sensitivity of SR to precipitation treatments in marshes. The findings underscore the importance of ambient climate in regulating ecosystem responses in long-term field manipulation experiments.
Funding OrganizationNatural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; International Science Partnership Program of the Chinese Academy of Sciences ; Yellow River Delta Ecological Research Station of Coastal Wetland ; Chinese Academy of Sciences
Indexed BySCI
Language英语
WOS KeywordPHENOLOGICAL RESPONSES ; MICROBIAL COMMUNITY ; COASTAL WETLAND ; ORGANIC-CARBON ; CLIMATE-CHANGE ; TEMPERATE ; WATER ; COMPONENTS ; RAINFALL ; DROUGHT
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS IDWOS:000928685700001
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/32643
Collection中国科学院海岸带环境过程与生态修复重点实验室
支撑部门_中国科学院黄河三角洲滨海湿地试验站
Corresponding AuthorHan, Guangxuan
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China
2.Shandong Key Lab Coastal Environm Proc, Yantai, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Yellow River Delta Ecol Res Stn Coastal Wetland, Yantai, Peoples R China
5.Henan Univ, Coll Geog & Environm Sci, Kaifeng, Peoples R China
6.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Li, Xinge,Hou, Yalin,Chu, Xiaojing,et al. Ambient precipitation determines the sensitivity of soil respiration to precipitation treatments in a marsh[J]. GLOBAL CHANGE BIOLOGY,2023:12.
APA Li, Xinge.,Hou, Yalin.,Chu, Xiaojing.,Zhao, Mingliang.,Wei, Siyu.,...&Han, Guangxuan.(2023).Ambient precipitation determines the sensitivity of soil respiration to precipitation treatments in a marsh.GLOBAL CHANGE BIOLOGY,12.
MLA Li, Xinge,et al."Ambient precipitation determines the sensitivity of soil respiration to precipitation treatments in a marsh".GLOBAL CHANGE BIOLOGY (2023):12.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Xinge]'s Articles
[Hou, Yalin]'s Articles
[Chu, Xiaojing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Xinge]'s Articles
[Hou, Yalin]'s Articles
[Chu, Xiaojing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Xinge]'s Articles
[Hou, Yalin]'s Articles
[Chu, Xiaojing]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.