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The responses of ecological indicators to compound extreme climate indices in Southwestern China

文献类型：期刊论文

作者Lu, Qingao5; Zhang, Yuandong1,5; Song, Bochao4; Shao, Hui2,3; Tian, Xiaorui5; Liu, Shirong5
刊名ECOLOGICAL INDICATORS
出版日期2023-12-15
卷号157页码:13
ISSN号1470-160X
关键词Ecological indicators Compound extreme climate events Compound warm-dry events Compound cold-dry events Copula Southwestern China
DOI10.1016/j.ecolind.2023.111253
通讯作者Zhang, Yuandong(zyd@caf.ac.cn)
英文摘要Global warming has been leading to frequent climate extremes, and a single variable of climate extremes is no longer sufficient to fully assess the impact of climate extremes on ecosystems, requiring a synergistic multivariate inquiry. We obtain the compound warm-dry index (CWD) and the compound cold-dry index (CCD), based on a Copula theory with a binary distribution of a standardized precipitation index (SPI) and a standardized temperature index (STI). Changes in the spatial and temporal patterns of the compound extreme climate indices (CECIs) and the direct and lag responses of ecological indicators (EIs) to the CECIs in Southwestern China (SWC) are analyzed using these two indices. We find that CECIs rise continually during 1980-2019 (p < 0.05), with spring CCD being particularly pronounced (74.8 %, p < 0.01). Moreover, there are regional asymmetries and seasonal asymmetries in the direct and lag responses of ecosystems to compound extreme climate events (CECEs). CWD promotes productivity in spring and the response diminishes in summer, with the response area shifting towards higher altitudes. Spring CWD has a strong lag effect that will suppress summer productivity at higher elevation (>3000 m). Spring CCD promotes the growth of vegetation at low elevation (<1000 m), while summer CCD inhibits it at high elevation. Meanwhile, spring CCD has a strong lag positive effect on summer vegetation growth at low elevation specifically in Sichuan Basin, especially for crops (46.8 %). Our findings highlight the impact of compound climatic conditions on vegetation at specific geographical terrain, and vegetation in different regions can have complex and different responses to compound climate extremes.
WOS关键词PRIMARY PRODUCTIVITY ; PLANT PRODUCTIVITY ; PRECIPITATION ; IMPACTS ; DISEASES ; EVENTS ; TEMPERATURE ; DROUGHTS ; GROWTH ; WINTER
资助项目National Key Research and Devel-opment Program of China[2021YFD220040103] ; National Natural Science Foundation of China[32271646]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:001165306200001
资助机构National Key Research and Devel-opment Program of China ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/202811]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Yuandong
作者单位1.Chinese Acad Forestry, Ecol & Nat Conservat Inst, Key Lab Forest Ecol & Environm Natl Forestry & Gra, Dongxiaofu 2, Beijing 100091, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Res Stn, Beijing 100101, Peoples R China
4.Beijing Inst Radio Measurement, Beijing 100854, Peoples R China
5.Chinese Acad Forestry, Ecol & Nat Conservat Inst, Key Lab Forest Ecol & Environm Natl Forestry & Gra, Beijing 100091, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Qingao,Zhang, Yuandong,Song, Bochao,et al. The responses of ecological indicators to compound extreme climate indices in Southwestern China[J]. ECOLOGICAL INDICATORS,2023,157:13.
APA Lu, Qingao,Zhang, Yuandong,Song, Bochao,Shao, Hui,Tian, Xiaorui,&Liu, Shirong.(2023).The responses of ecological indicators to compound extreme climate indices in Southwestern China.ECOLOGICAL INDICATORS,157,13.
MLA Lu, Qingao,et al."The responses of ecological indicators to compound extreme climate indices in Southwestern China".ECOLOGICAL INDICATORS 157(2023):13.

入库方式： OAI收割

来源：地理科学与资源研究所

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