Interannual moisture variability on the Qinghai Plateau: Trends, patterns, and implications
文献类型：期刊论文
| 作者 | Yang, Yanxi3; Wang, Junbang3; Zhang, Xiujuan2; Ye, Hui1; Yuan, Bin1; Watson, Alan E.3 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 645页码:132074 |
| 关键词 | Climate change Moisture Index (IM) Quasi-periodic EEMD Qinghai Plateau (QP) |
| DOI | 10.1016/j.jhydrol.2024.132074 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Investigating surface dry-wet patterns on the Qinghai Plateau (QP) is crucial for water allocation, ecological sustainability, and climate variability adaptation strategies. Existing discrepancies in the QP dry-wet trends and distribution characteristics underscored the need for a more refined analysis. This study utilized the Thornthwaite Moisture Index (IM) to quantify changes in surface dryness and wetness under prevailing climatic conditions. Linear trend regression and ensemble empirical mode decomposition (EEMD) were applied to study the dynamic and periodic characteristics of the QP from 1980 to 2018. Our findings revealed a decrease from southeast to northwest in IM, with the semi-arid and sub-humid transition line aligning closely with the 400 mm isohyet. The dry-wet transition line exhibited a northwestward trend over the past four decades. Possibly influenced by monsoon circulation and El Nino-Southern Oscillation (ENSO), the annual IM displayed a quasi-cycle of 3 to 5 years, manifested by a dry period (1990-2004) and a wet period (2005-2012). However, spatial differences existed, challenging the universality of the Dry gets Drier and Wet gets Wetter (DDWW) pattern. Precipitation (PRCP) changes could predict over 90 % of IM spatiotemporal variations. Additionally, the IM response to Average Temperature (TAVG) exhibited an inverted U-shaped curve, with a boundary (-3.8 degrees C) below which cooler regions became wetter and above which they became drier. The observed warming and precipitation shifts suggested that continued warming could lead to warmer and wetter climates, potentially causing ecological and environmental problems. Therefore, examining the surface moisture budget is of critical scientific and practical significance, in order to provide a decision- making basis for mitigating and adapting to climate change. |
| WOS关键词 | TIBETAN PLATEAU ; DROUGHT ; CHINA ; EVAPOTRANSPIRATION ; HYDROCLIMATE ; ROBUST |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| WOS记录号 | WOS:001345747400001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/209542]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Wang, Junbang |
| 作者单位 | 1.Jiujiang Univ, Sch Tourism & Geog, Jiujiang 332005, Peoples R China 2.Yangtze Univ, Coll Hort & Landscape Architecture, Jingzhou 434025, Peoples R China 3.[Yang, Yanxi; Wang, Junbang; Watson, Alan E.] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Natl Ecosyst Sci Data Ctr, Key Lab Ecosyst Network Observat & Modeling, 11A Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yanxi,Wang, Junbang,Zhang, Xiujuan,et al. Interannual moisture variability on the Qinghai Plateau: Trends, patterns, and implications[J]. JOURNAL OF HYDROLOGY,2024,645:132074. |
| APA | Yang, Yanxi,Wang, Junbang,Zhang, Xiujuan,Ye, Hui,Yuan, Bin,&Watson, Alan E..(2024).Interannual moisture variability on the Qinghai Plateau: Trends, patterns, and implications.JOURNAL OF HYDROLOGY,645,132074. |
| MLA | Yang, Yanxi,et al."Interannual moisture variability on the Qinghai Plateau: Trends, patterns, and implications".JOURNAL OF HYDROLOGY 645(2024):132074. |
入库方式： OAI收割
来源：地理科学与资源研究所
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