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Ecosystem drought recovery and its driving factors in southwest China

文献类型：期刊论文

作者Ge, Zhongxi2,3,4; Wang, Jingting2,3,4; Tang, Bo-Hui2,3,4,5; Lai, Peiyu6; Huang, Liang2,3,4; Li, Menghua2,3,4; Zhang, Zhen2,3,4; Fan, Dong2,3,4; Zhou, Yun1
刊名JOURNAL OF HYDROLOGY-REGIONAL STUDIES
出版日期2025-12-01
卷号62页码:102780
关键词Drought recovery time Solar-induced chlorophyll fluorescence Spring phenology Drought recovery trajectory Drought occurrence time
DOI10.1016/j.ejrh.2025.102780
产权排序4
文献子类Article
英文摘要Study area: Southwest China. Study focus: Southwest China, with its karst topography and mismatched soil-water resources, is highly susceptible to drought stress. Drought recovery time, defined as the time required for ecosystems to restore their pre-drought functions following stress, is critical for evaluating impacts of droughts and ecosystem resilience. Previous studies have predominantly focused on the influence of factors such as temperature, precipitation, and gross primary production on ecosystem drought recovery time across large scales, with insufficient attention paid to southwest China: a region prone to frequent droughts and ecologically vulnerable. To investigate the characteristics of drought recovery time in different ecosystems across southwest China under the following two drought recovery trajectories when drought occurs at different time, as well as the impacts of multiple driving factors on drought recovery time: (1) drought recovery was completed prior to the winter of the dry year (RSGS); (2) drought recovery extended into the winter and the subsequent year following the drought year (RMGS), this study used Standardized Precipitation Evapotranspiration Index (SPEI) and solar-induced chlorophyll fluorescence (SIF) to identify drought recovery time. It categorized ecosystem drought recovery into two trajectories and utilized the Random Forest (RF) model to assess the importance of various bioclimatic factors, vegetation physiological conditions, and karst landform in influencing ecosystem drought recovery. New hydrological insights for the regions: The results showed that: (1) The drought recovery time of different ecosystems in southwest China shows significant differences. (2) Precipitation during the drought response lag period significantly influenced drought recovery under RSGS; according to the feature importance results identified by the RF model, the importance of spring phenology to drought recovery is 78 %-85 % under RMGS. (3) Precipitation, temperature, vapor pressure deficit (VPD), and spring phenology all have significant impacts on drought recovery in both
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WOS关键词CLIMATE-CHANGE ; WATER-USE ; PLATEAU ; RESILIENCE ; RESPONSES ; RISK
WOS研究方向Water Resources
语种英语
WOS记录号WOS:001577209800001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/216055]  
专题资源与环境信息系统国家重点实验室_外文论文
通讯作者Tang, Bo-Hui
作者单位1.Southwest Univ, Sch Geog Sci, Chongqing Jinfo Mt Natl Field Sci Observat & Res S, Chongqing 400715, Peoples R China
2.Yunnan Key Lab Quantitat Remote Sensing, Kunming, Peoples R China;
3.Kunming Univ Sci & Technol, Fac Land Resource Engn, Kunming 650093, Peoples R China;
4.Yunnan Int Joint Lab Integrated Sky Ground Intelli, Kunming, Peoples R China;
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China;
6.Univ Twente, Fac Geoinformat Sci & Earth Observat, POB 217, NL-7500 AE Enschede, Netherlands;
推荐引用方式
GB/T 7714		 Ge, Zhongxi,Wang, Jingting,Tang, Bo-Hui,et al. Ecosystem drought recovery and its driving factors in southwest China[J]. JOURNAL OF HYDROLOGY-REGIONAL STUDIES,2025,62:102780.
APA Ge, Zhongxi.,Wang, Jingting.,Tang, Bo-Hui.,Lai, Peiyu.,Huang, Liang.,...&Zhou, Yun.(2025).Ecosystem drought recovery and its driving factors in southwest China.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,62,102780.
MLA Ge, Zhongxi,et al."Ecosystem drought recovery and its driving factors in southwest China".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 62(2025):102780.

入库方式： OAI收割

来源：地理科学与资源研究所

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