Response of vegetation ecosystems to flash drought with solar-induced chlorophyll fluorescence over the Hai River Basin, China during 2001-2019
文献类型：期刊论文
| 作者 | Yao, Tingting1,2; Liu, Suxia1,2,3; Hu, Shi2; Mo, Xingguo1,2,3 |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 313页码:12 |
| ISSN号 | 0301-4797 |
| 关键词 | Flash drought duration Flash drought onset Solar-induced chlorophyll fluorescence Soil moisture Gross primary productivity Vegetation index |
| DOI | 10.1016/j.jenvman.2022.114947 |
| 通讯作者 | Liu, Suxia(liusx@igsnrr.ac.cn) |
| 英文摘要 | With global climate change, frequent flash droughts have critically impacted vegetation productivity. Based on the new definition on flash drought onset and duration, the temporal and spatial evolution patterns of the flash drought over the Hai River Basin (HRB) was analysed. Among the events, the flash drought in 2019 lasted for 40 days, from the day of the year (DOY) 120 to DOY160, which was the strongest and mainly concentrated in the south-eastern part of the basin. Solar-induced chlorophyll fluorescence (SIF) and vegetation indices were used to explore the responses of different vegetation types to this flash drought. Compared to forest and grassland, the SIF and SIFyield (SIF normalized by the absorbed photosynthetically active radiation (APAR)) values of cropland were more sensitive to water losses and replenishment. By analysing different radiation conditions which would affect SIF and photosynthesis, low radiation was found altering the linear relationship between fluorescence and photosynthesis. The flash drought event caused gross primary productivity (GPP) losses in 40% of the basin and the maximum loss reached 0.16 kg C m(-2), indicating that the impact of this flash drought on vegetation productivity was quite serious. The results obtained in this work can be used to understand the mechanisms with which the vegetation photosynthetic capacity responds to flash droughts and to evaluate the impact of flash droughts on terrestrial ecosystems. |
| WOS关键词 | ONSET ; PHOTOSYNTHESIS ; MECHANISMS ; SATELLITE ; MISSION ; WHEAT |
| 资助项目 | National Key Research and Development Program of China[2018YFE0106500] ; National Key Research and Development Program of China[2017YFA0603702] ; Danida Fellowship Centre EOForChina project[18-M01-DTU] ; ChinaWaterSense project[8087-00002B] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000878688600001 |
| 资助机构 | National Key Research and Development Program of China ; Danida Fellowship Centre EOForChina project ; ChinaWaterSense project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/186810]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Suxia |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Tingting,Liu, Suxia,Hu, Shi,et al. Response of vegetation ecosystems to flash drought with solar-induced chlorophyll fluorescence over the Hai River Basin, China during 2001-2019[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2022,313:12. |
| APA | Yao, Tingting,Liu, Suxia,Hu, Shi,&Mo, Xingguo.(2022).Response of vegetation ecosystems to flash drought with solar-induced chlorophyll fluorescence over the Hai River Basin, China during 2001-2019.JOURNAL OF ENVIRONMENTAL MANAGEMENT,313,12. |
| MLA | Yao, Tingting,et al."Response of vegetation ecosystems to flash drought with solar-induced chlorophyll fluorescence over the Hai River Basin, China during 2001-2019".JOURNAL OF ENVIRONMENTAL MANAGEMENT 313(2022):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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