| Assessing the Influence of Compounding Factors to the Water Level Variation of Erhai Lake | |
| Wu, Huaxin1; Wang, Shengrui1,2; Wu, Tao1; Yao B(姚波)3; Ni, Zhaokui1 | |
| Corresponding Author | Wang, Shengrui([email protected]) |
| Source Publication | WATER
 |
| 2021 | |
| Volume | 13Issue:1Pages:17 |
| Abstract | Climate change and human activities cause lake water level (WL) fluctuations to exceed natural thresholds, with implications for the available water resources. Studies that explore WL change trends and the main driving forces that affect water level changes are essential for future lake water resource planning. This study uses the Mann-Kendall trend test method to explore the WL fluctuations trend and WL mutation in Erhai Lake (EL) during 1990-2019 and explore the main driving factors affecting water level changes, such as characteristic WL adjustments. We also use the principal component analysis to quantify the contribution of compound influencing factors to the water level change in different periods. The results showed that the WL rose at a rate of 47 mm/a during 1990-2019 but was influenced by the characteristic WL adjustment of EL in 2004 and the WL mutation in 2005. In 1990-2004, the WL showed a downtrend caused by the increase in water resource development and utilization intensity, and in 2005-2019, the WL showed an uptrend caused by the combined decrease in evaporation, outflow, and the increase in water supply for water conservancy projects. Additionally, the largest contributions of outflow to WL change were 19.34% and 21.61% in 1990-2019 and 1990-2004, respectively, while the largest contribution of cultivated area to WL change was 20.48% in 2005-2019, and it is worth noting that the largest contribution of climate change to WL change was 40.35% in 2013-2019. In the future, under the increase in outflow and evaporation and the interception of inflow, the WL will decline (Hurst exponent = 0.048). Therefore, planning for the protection and management of lakes should consider the impact of human activities, while also paying attention to the influence of climate change. |
| Keyword | water level climate change human activity Erhai Lake influence factor |
| DOI | 10.3390/w13010029 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000606369600001 |
| WOS Keyword | CLIMATE-CHANGE ; CHANGE SCENARIOS ; YANGTZE-RIVER ; RESOURCES ; FLUCTUATION ; MANAGEMENT ; IMPACTS ; ECOLOGY ; QUALITY ; BASIN |
| WOS Research Area | Environmental Sciences & Ecology ; Water Resources |
| WOS Subject | Environmental Sciences ; Water Resources |
| Funding Project | National Major Science and Technology Program for Water Pollution Control and Treatment[2018ZX07701001-17] ; National Natural Science Foundation of China[U1902207] |
| Funding Organization | National Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China |
| Classification | 二类 |
| Contributor | Wang, Shengrui |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/85934 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Beijing Normal Univ, Coll Water Sci, Beijing Key Lab Urban Hydrol Cycle & Sponge City, Beijing 100875, Peoples R China; 2.Beijing Normal Univ Zhuhai, Technol Res Ctr Water Sci, Zhuhai 519087, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Wu, Huaxin,Wang, Shengrui,Wu, Tao,et al. Assessing the Influence of Compounding Factors to the Water Level Variation of Erhai Lake[J]. WATER,2021,13,1,:17.Rp_Au:Wang, Shengrui |
| APA | Wu, Huaxin,Wang, Shengrui,Wu, Tao,姚波,&Ni, Zhaokui.(2021).Assessing the Influence of Compounding Factors to the Water Level Variation of Erhai Lake.WATER,13(1),17. |
| MLA | Wu, Huaxin,et al."Assessing the Influence of Compounding Factors to the Water Level Variation of Erhai Lake".WATER 13.1(2021):17. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2021048.pdf（3618KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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