Compound heatwave-drought alters eco-hydrological processes in subtropical evergreen and deciduous forests
文献类型：期刊论文
| 作者 | Zheng, Diwen5; Lu, Yuyu5; Xiao, Jingjing6; Wu, Chaoyang4; Ding, Zhi1; Jardim, Alexandre Manitoba Da Rosa Ferraz2; Da Silva, Thieres George Freire3; Tang, Xuguang5 |
| 刊名 | FOREST ECOSYSTEMS
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 15页码:100416 |
| 关键词 | Compound Heatwave-Drought (CHD) event Transpiration Evapotranspiration (ET) Water cycle Forest |
| ISSN号 | 2095-6355 |
| DOI | 10.1016/j.fecs.2025.100416 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | In recent years, extreme climate events have occurred globally with increasing frequency, posing severe challenges to forest water cycles. Particularly during the summer of 2022, an unprecedented compound heatwavedrought (CHD) event swept through southern China, while the potential effect on subtropical forest ecosystems remains unclear. On the basis of three-year continuous eddy covariance (EC)-based water flux and climate observations at the subtropical evergreen and deciduous forests between 2021 and 2023, this study addressed to quantify the process and the degree of influence of such CHD event on the ratio of transpiration (T) to evapotranspiration (ET), T, ET, and cumulative (precipitation (P) - ET), respectively. In contrast to the adjacent years, water contents at different soil depths in the two forest types declined sharply during the summer of 2022. Large differences in the variation ranges of T/ET were revealed between the two forest types, and the evergreen forest (EBF) exhibited relatively mild seasonal fluctuations, whereas the deciduous forest (DBF) showed relatively higher T/ET, T, and ET in summertime. Subsequent analysis revealed that MODIS EVI time-series effectively captured the variability in these eco-hydrological parameters. Furthermore, divergent differences were observed about the CHD-induced stress. For the DBF, both ET and T increased significantly, resulting in a severe water deficit (cumulative (P - ET)) of approximately -116.31 mm in 2022. In contrast, the EBF experienced a substantial reduction in both ET and T, with a water deficit of only -26.34 mm in 2022. All these analyses provide mechanistic evidence of the divergent drought response strategies between subtropical evergreen and deciduous forests, and offer scientific support for optimizing forest water resource management and enhancing climate resilience. |
| URL标识 | 查看原文 |
| WOS关键词 | NET ECOSYSTEM EXCHANGE ; WATER-USE EFFICIENCY ; EDDY-COVARIANCE ; PARTITIONING EVAPOTRANSPIRATION ; IMPACT |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:001669055100001 |
| 出版者 | KEAI PUBLISHING LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/220891]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Tang, Xuguang |
| 作者单位 | 1.Southwest Univ, Sch Geog Sci, Chongqing 400715, Peoples R China; 2.Sao Paulo State Univ UNESP, Inst Biosci, Dept Biodivers, BR-13506900 Sao Paulo, Brazil; 3.Univ Fed Rural Pernambuco, Dept Plant Prod, Acad Unit Serra Talhada, BR-56909535 Serra Talhada, Brazil 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 5.Hangzhou Normal Univ, Inst Remote Sensing & Geosci, Hangzhou 311121, Peoples R China; 6.Zhejiang Climate Ctr, Zhejiang Meteorol Bur, Hangzhou 310017, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zheng, Diwen,Lu, Yuyu,Xiao, Jingjing,et al. Compound heatwave-drought alters eco-hydrological processes in subtropical evergreen and deciduous forests[J]. FOREST ECOSYSTEMS,2026,15:100416. |
| APA | Zheng, Diwen.,Lu, Yuyu.,Xiao, Jingjing.,Wu, Chaoyang.,Ding, Zhi.,...&Tang, Xuguang.(2026).Compound heatwave-drought alters eco-hydrological processes in subtropical evergreen and deciduous forests.FOREST ECOSYSTEMS,15,100416. |
| MLA | Zheng, Diwen,et al."Compound heatwave-drought alters eco-hydrological processes in subtropical evergreen and deciduous forests".FOREST ECOSYSTEMS 15(2026):100416. |
入库方式： OAI收割
来源：地理科学与资源研究所
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