文献类型：期刊文献

英文题名：Assessment of the impact of the Poplar Ecological Retreat Project on water conservation in the Dongting Lake wetland region using the InVEST model

作者：Hu, Wenmin[1,2] Li, Guo[1] Gao, Zhihai[2] Jia, Guanyu[1] Wang, Zhongchen[1] Li, Yi[3]

第一作者：Hu, Wenmin

通信作者：Li, G[1]

机构：[1]Cent South Univ Forestry & Technol, Changsha 410004, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forest Resources Informat Tech, Beijing 100001, Peoples R China;[3]Hunan Agr Univ, Changsha 410015, Peoples R China

年份：2020

卷号：733

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20202108687279);Scopus(收录号：2-s2.0-85084796773);WOS:【SCI-EXPANDED(收录号:WOS:000540254000004)】；

基金：This work was supported by the National Natural Science Foundation of China [grant number 41801183], the China Postdoctoral Science Foundation Funded Project [grant number 2018M641528], the Philosophy and Social Science Foundation of Hunan Province [grant number 18YBQ131], the Evaluation Committee Project of Social Science Achievements of Hunan Province [grant numbers XSP19YBC114, XSP18YBZ027], the Scientific Research Project of Hunan Education Department [grant number 18C0269] and the Forestry Science and Technology Innovation Project of Hunan Province [grant number XLK201983]. We thank the Global Environment Facility (GEF) organization for their support.

语种：英文

外文关键词：Water conservation; Poplar ecological retreat; Ecosystem services; Dongting Lake; Landscape pattern; InVEST model

摘要：The Poplar Ecological Retreat (PER) project is a significant environmental protection initiative implemented to protect the Dongting Lake wetlands ecosystem in China, and the ecological impacts of this project have gradually become a hot topic. In this study, water conservation was selected as an indicator of ecosystem function to explore the impact of the project by using the water yield module of the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) model and geographic statistical methods. Water yield and land-use changes were quantitatively evaluated, and significant changes in the wetland landscape configuration occurred after the PER project because forest beach, moss marshland and mudflat areas were transformed into a poplar-retreat area. Thus, the proportion of the poplar-retreat area and average water yield increased. By using the principal component and cluster analysis methods, climate change and landscape patterns were shown to be the dominant driving factors affecting water conservation under stable meteorological conditions. Moreover, the landscape heterogeneity that resulted from the landscape patterns had a greater impact than climate change, which means that reducing human activities can enhance water conservation. Additionally, the correlation between landscape heterogeneity and water yield indicated that reducing landscape fragmentation and improving aggregation also benefit water conservation. Therefore, the PER project is successful at enhancing ecological functions and protecting wetland environments, and it represents a good example of maintaining ecological sustainability despite local economic performance restrictions. This project serves as an important reference for the establishment of sustainable wetland ecological policies by national governments, and the results can provide theoretical support for landscape ecology and eco-hydrology research.