Flash Droughts Identification Based on an Improved Framework and Their Contrasting Impacts on Vegetation Over the Loess Plateau, China
文献类型：期刊论文
| 作者 | Zheng, Xudong3; Huang, Shengzhi3; Peng, Jian1,4; Leng, Guoyong2; Huang, Qiang3; Fang, Wei3; Guo, Yi3 |
| 刊名 | WATER RESOURCES RESEARCH
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 58期号:9页码:24 |
| 关键词 | flash drought identification framework rate of intensification GPP impact Loess Plateau |
| ISSN号 | 0043-1397 |
| DOI | 10.1029/2021WR031464 |
| 通讯作者 | Huang, Shengzhi(huangshengzhi7788@126.com) |
| 英文摘要 | Flash drought occurs in a short timescale and has more adverse impacts on society and ecosystems than regular drought. Considering flash drought as a special type of regular drought and identifying it by the rate of the first intensification period might ignore posterior intensification periods. To this end, we introduced the combinatorial decomposable flash drought identification framework (CDFDI) to identify flash drought from the perspective of regarding it as the subphase of drought and explore the characteristics and vegetation response of flash drought in the Loess Plateau (LP), China, where is prone to drought and its ecological environment is very fragile. The neffectiveness of the framework is evaluated through the comparison analysis with a preexisting identification method proposed by Li et al. (2020, ). Results indicate that: (a) the CDFDI framework can better capture flash drought events than the Liu's method in terms of time series and spatial patterns, its rationality was further demonstrated by the obvious latitudinal pattern of correlation between flash drought and normalized difference vegetation index (NDVI); (b) the correlation shows an southeast (positive) and northwest (negative) contrasting pattern in the LP; (c) such contrasting pattern was also found in the response time of GPP, which suggests a more rapid impact on vegetation of flash drought in the arid northwestern LP; and (d) flash drought shows an exacerbating trend across the LP under the background of climate warming and mainly concentrated in the southern part. In general, this study provides new insights on flash drought connotations in a changing environment. |
| WOS关键词 | PRECIPITATION DEFICIT ; SOIL-MOISTURE ; RIVER-BASIN ; NDVI3G ; ONSET ; MODIS |
| 资助项目 | National Key R&D Program of China[2021YFC3000203] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA28060100] ; Shaanxi University Science and Technology Association Youth Talent Promotion Project[20190413] ; National Natural Science Foundation of China[52009100] ; China Postdoctoral Science Foundation[2021M692602] |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000860574800001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Shaanxi University Science and Technology Association Youth Talent Promotion Project ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/184969]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Huang, Shengzhi |
| 作者单位 | 1.Univ Leipzig, Remote Sensing Ctr Earth Syst Res, Leipzig, Germany 2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian, Peoples R China 4.UFZ Helmholtz Ctr Environm Res, Dept Remote Sensing, Leipzig, Germany |
| 推荐引用方式 GB/T 7714 | Zheng, Xudong,Huang, Shengzhi,Peng, Jian,et al. Flash Droughts Identification Based on an Improved Framework and Their Contrasting Impacts on Vegetation Over the Loess Plateau, China[J]. WATER RESOURCES RESEARCH,2022,58(9):24. |
| APA | Zheng, Xudong.,Huang, Shengzhi.,Peng, Jian.,Leng, Guoyong.,Huang, Qiang.,...&Guo, Yi.(2022).Flash Droughts Identification Based on an Improved Framework and Their Contrasting Impacts on Vegetation Over the Loess Plateau, China.WATER RESOURCES RESEARCH,58(9),24. |
| MLA | Zheng, Xudong,et al."Flash Droughts Identification Based on an Improved Framework and Their Contrasting Impacts on Vegetation Over the Loess Plateau, China".WATER RESOURCES RESEARCH 58.9(2022):24. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。