文献类型：期刊文献

英文题名：Effects of land-use and climate change on sediment and nutrient retention in Guizhou, China

作者：Han, Huiqing Yang, Jianqiang Ma, Geng Liu, Yue Zhang, Linan Chen, Siying Ma, Shuliang

通信作者：Han, HQ[1]

机构：[1]Guizhou Inst Technol, Sch Architecture & Urban Planning, Guiyang 550003, Peoples R China;[2]Guizhou Inst Technol, Sch Econ & Management, Guiyang, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Architecture & Urban Planning, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2020

卷号：6

期号：1

外文期刊名：ECOSYSTEM HEALTH AND SUSTAINABILITY

收录：;Scopus(收录号：2-s2.0-85090123423);WOS:【SCI-EXPANDED(收录号:WOS:000565952000001)】；

基金：This work was supported by the Science and Technology Foundation of Guizhou Province (NO.[2020]1Y152), the Humanity and Social Science Youth foundation of the Ministry of Education (18YJCZH042) and the Scientific Research Foundation of the Guizhou Institute of Technology.

语种：英文

外文关键词：Climate change; land-use change; InVEST model; nutrient retention; scenario analysis; sediment retention

摘要：Introduction Sediment and nutrient retention have significant impacts on agricultural productivity and water quality. Obvious changes of climate and land-use have deeply affected freshwater ecosystem services in the last several decades. Nevertheless, it is unclear what the differences are in the impact of climate and land-use changes on freshwater ecosystem services. Outcomes The impacts of climate and land-use change on sediment and nutrient retention (two essential freshwater ecosystem services) were evaluated with the help of the Integrated Valuation of Environmental Services and Tradeoffs (InVEST) model. The results from the study area suggest a decreasing trend in sediment and nutrient retention from 1995 to 2015 when climate and land-use were changed simultaneously. A decreasing trend in sediment retention and an increasing trend in nutrient retention were presented under scenario A (climate change from 1995 to 2015 with land-use unchanged), while the sediment exported and nutrient retention exhibited a decreasing trend except sediment retained under scenario B (land-use change from 1995 to 2015 with unchanged climate). Rainfall erosivity and soil erodibility were more sensitive to the output of sediment retention, while retention efficiency produced more of an effect on nutrient retention. Discussion and Conclusion Climate change played a dominant role in the change in sediment retention, while land-use change had a more significant effect on nutrient retention change than climate change. The results of this study provide explicitinformation for land-use managers to reduce the negative effects associated with sediment and nutrient retention.