文献类型：期刊文献

英文题名：Spatial and temporal evolution characteristics of the water conservation function and its driving factors in regional lake wetlands-Two types of homogeneous lakes as examples

作者：Hu, Wenmin[1,2] Li, Guo[1] Li, Zenian[1]

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

年份：2021

卷号：130

外文期刊名：ECOLOGICAL INDICATORS

收录：;EI(收录号：20213210733960);Scopus(收录号：2-s2.0-85111943854);WOS:【SCI-EXPANDED(收录号:WOS:000693451900001)】；

基金：This research was funded by the Forestry Science and Technology Innovation Programme of Hunan Province (Programme number: XLK201983) , the Natural Science Foundation General Programme of Hunan Province (Programme number: 2020JJ4942) , the Science and Technology Innovation Programme of the Hunan Department of Natural Resources (Programme number: 2020007) , and the National Natural Science Foundation of China (Programme number: 32001363) . We would like to thank Naomi Twery and Guanyu JIA for providing lan-guage help and the Key Laboratory of Soil and Water Conservation of Hunan Province and the Engineering Technology Research Centre of Big Data for Landscape Resources in Nature Protected Areas of Hunan Province at the Central South University of Forestry and Technology for providing experimental help.

语种：英文

外文关键词：Water yield; Lake wetland; Cluster analysis; Climate change; InVEST model

摘要：Water conservation is the core wetland ecological function. The pattern of water conservation in geography often exhibits local spatial heterogeneity. In this paper, the Dongting Lake (DT) and Poyang Lake (PY) wetlands were taken as research objects, and the water yield (WY) module of the Integrated Valuation of Ecosystem Services and Trade-offs (InVEST) model was used to spatially quantify water conservation, with the aim of revealing the differences in water conservation in homogeneous wetlands. We observed spatio-temporal changes in the WY over six periods from 1998 to 2018 and used multivariate analysis of variance (MANOVA) and the system cluster method to explore the patterns and driving factors of water conservation in the DT and PY wetlands. The research results were as follows: (1) the WY in the two wetlands showed declining trends, but the trend in the DT wetland was more obvious. (2) Water conservation in the PY wetland exhibited a more sensitive response to climate than water conservation in the DT wetland. (3) From the perspective of the WY level, the PY wetland was generally high, while the DT wetland was generally low. (4) Climate change was the main contributor to and direct driving factor of water production, while wetland changes and socio-economic factors were indirect driving factors. (5) The effect of wetland cover changes on the WY showed significant differences among wetland cover types, indicating that the drivers of the WY changes had a clear relationship with landscape changes and transfers in wetland cover types. (6) The InVEST model was applicable for evaluating lake wetland water conservation. In summary, paying more attention to the differences in the changes in heterogeneous and homogenous regions can help us understand the factors that impact water conservation. Additionally, rational adjustment of indirect driving forces is conducive to ecological safety management.