中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Assessing the Influence of Compounding Factors to the Water Level Variation of Erhai Lake

文献类型:期刊论文

AuthorWu, Huaxin3; Wang, Shengrui2,3; Wu, Tao3; Yao B(姚波)1; Ni, Zhaokui3
SourceWATER
Issued Date2021
Volume13Issue:1Pages:17
Keywordwater level climate change human activity Erhai Lake influence factor
DOI10.3390/w13010029
Corresponding AuthorWang, Shengrui(wangsr@craes.org.cn)
English AbstractClimate 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.
Classification二类
Funding ProjectNational Major Science and Technology Program for Water Pollution Control and Treatment[2018ZX07701001-17] ; National Natural Science Foundation of China[U1902207]
WOS KeywordCLIMATE-CHANGE ; CHANGE SCENARIOS ; YANGTZE-RIVER ; RESOURCES ; FLUCTUATION ; MANAGEMENT ; IMPACTS ; ECOLOGY ; QUALITY ; BASIN
WOS Research AreaEnvironmental Sciences & Ecology ; Water Resources
Language英语
WOS IDWOS:000606369600001
Funding OrganizationNational Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China
Other responsibleWang, Shengrui
源URL[http://dspace.imech.ac.cn/handle/311007/85933]  
Collection力学研究所_流固耦合系统力学重点实验室(2012-)
Affiliation1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
2.Beijing Normal Univ Zhuhai, Technol Res Ctr Water Sci, Zhuhai 519087, Peoples R China;
3.Beijing Normal Univ, Coll Water Sci, Beijing Key Lab Urban Hydrol Cycle & Sponge City, Beijing 100875, 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.
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.

入库方式: OAI收割

来源:力学研究所

浏览0
下载0
收藏0
其他版本

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.