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Causal analysis reveals that ecosystem structure and function are temperature-dominated but relatively independent

文献类型：期刊论文

作者Luo, Wenxing2,4; Yang, Junqi3; Wang, Yanfen4,5; Cui, Xiaoyong2,4; Zhang, Leiming4,6; Zhao, Tong3,7; Xue, Kai4,5; Du, Jianqing4,5; Song, Xiaoning4,5; Hao, Yanbin1,2,4
刊名ECOLOGICAL INDICATORS
出版日期2024-08-01
卷号165页码:11
关键词Temperate grassland Climate change Ecosystem structure and function Causal network Dominant driver Ecosystem stability
ISSN号1470-160X
DOI10.1016/j.ecolind.2024.112188
英文摘要The understanding of the interplay between the environment, ecosystem structure, and function is crucial for effectively managing ecosystems in the face of climate change and environmental disturbances. Numerous observations and simulation experiments relying on correlation analysis have yielded the conclusion that environmental factors can directly or indirectly affect ecosystem community structure and function. However, the limitations of traditional ecological approaches lie in their inadequate control over confounding factors, thus hindering our comprehensive understanding of the true causal relationships. Our study aims to address these limitations and obtain a more accurate picture of causality about environment, ecosystem structure and function within a long-term time series data of an ecosystem. Here, utilizing a 31-year dataset of typical temperate grassland ecosystems, we developed an advanced causal discovery model and further enhanced it to effectively identify the causal network within the ecosystem, while also quantifying the intensity of causal pathways connecting the environment, ecosystem structure, and function. We found that the primary driver for changes in ecosystem structure and function was the temperature during the growing season, with soil water content being the secondary factor. However, there was only a weak causal relationship between ecosystem structure and gross primary productivity (GPP), which was mediated by eurytopic xerophyte plants. These findings challenge the conventional notion that precipitation is a key driver of changes in ecosystem carbon fluxes, highlighting the importance of plant-available water in regulating ecosystem structure and function. Our results suggest that the effects of global warming and severe droughts on plant growth and carbon sequestration capacity necessitate significant attention and further mitigation measures in arid and semi-arid regions.
WOS关键词INNER-MONGOLIA ; COMMUNITY COMPOSITION ; CLIMATE-CHANGE ; PRODUCTIVITY ; PRECIPITATION ; BIODIVERSITY ; STABILITY ; GRASSLANDS ; IMPACTS
资助项目Weiqiao-UCAS Special Projects on Low-Carbon Technology Development[GYY-DTFZ-2022-006] ; National Natural Science Foundation of China[42041005] ; Fundamental Research Funds for the Central Universities[E1E40607]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001249221600001
出版者ELSEVIER
资助机构Weiqiao-UCAS Special Projects on Low-Carbon Technology Development ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
源URL[http://ir.igsnrr.ac.cn/handle/311030/206459]  
专题生态系统网络观测与模拟院重点实验室_外文论文
通讯作者Zhao, Tong; Hao, Yanbin
作者单位1.Binzhou Inst Technol, WeiOo UCAS Sci & Technol Pk, Binzhou 256606, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China
4.Univ Chinese Acad Sci, Chinese Acad Sci, Yanshan Mt Earth Crit Zone & Surface Flux Res Stn, Beijing 100049, Peoples R China
5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
7.Chinese Acad Sci, Key Lab Big Data Min & Knowledge Management, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Luo, Wenxing,Yang, Junqi,Wang, Yanfen,et al. Causal analysis reveals that ecosystem structure and function are temperature-dominated but relatively independent[J]. ECOLOGICAL INDICATORS,2024,165:11.
APA Luo, Wenxing.,Yang, Junqi.,Wang, Yanfen.,Cui, Xiaoyong.,Zhang, Leiming.,...&Hao, Yanbin.(2024).Causal analysis reveals that ecosystem structure and function are temperature-dominated but relatively independent.ECOLOGICAL INDICATORS,165,11.
MLA Luo, Wenxing,et al."Causal analysis reveals that ecosystem structure and function are temperature-dominated but relatively independent".ECOLOGICAL INDICATORS 165(2024):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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