水土保持研究2024，Vol.31Issue(2)：431-442,12.DOI:10.13869/j.cnki.rswc.2024.02.019
漓江流域"三生"功能时空分异特征及动态模拟
Spatiotemporal Differentiation and Dynamic Simulation of Production-Living-Ecology Function in Lijiang River Watershed
摘要
Abstract
[Objective]The aims of this study are to analyze the dynamic variation characteristics of the spatiotemporal distribution of the production-living-ecology function in the Lijiang River watershed,to predict its future change trend in the natural development scenario and the ecological protection scenario,respectively,and to provide a decision-making support for the sustainable development of the karst watershed.[Methods]With the land use data of Lijiang River Watershed of 2010,2015 and 2020,the gravity center model was used to analyze the movement of the gravity centers of the production-living-ecology function,and the Patch-Generating Land Use Simulation Model(PLUS)model was used to analyze and simulate spatial-temporal variation characteristics of the production-living-ecology function in the Lijiang River watershed.[Results](1)From 2010 to 2020,the index of production function(PF)and living function(LF)increased by 0.77% and 23.85%,respectively,and the areas with high-value of PF and LF concentrated in the lower elevations of the study area and Guilin urban area,respectively.The ecologly function(EF)index decreased by 1.39% over the same time period,and the area of high-value of EF distributed along high elevations.(2)The areas of enhanced PF and LF in the latter stage increased by 4.0% and 11.6% from the previous period,respectively,while the areas of weakened function decreased by 3.2% and 9.4% from the previous period,respectively.The areas of enhanced and weakened EF decreased by 16.4% and increased by 17.3% from the previous period,respectively.(3)In the past ten years,the centers of gravity of PF and LF moved to the northwest as a whole,while the center of gravity of EF moved to the southeast as a whole.(4)Compared with 2020,in the natural development scenario,the mean values of PF and LF in 2030 increased by 0.278 and 0.4,respectively,while the mean value of EF decreased by 0.138.In the ecological protection scenario,the mean values of PF,LF and EF in 2030 increased by 0.421,0.211 and 0.06,respectively.[Conclusion]The PF and LF in the Lijiang River watershed had been enhanced overall,while the EF had been weakened,but the overall amplitude of change of EF was the largest among the three functions.The simulation results of ecological protection scenarios are more in line with the development goals of the Overall Territorial Space Plan of Guilin City(2021-2035).关键词
"三生"功能/情景模拟/PLUS模型/漓江流域Key words
production-living-ecology function/scenario simulation/PLUS model/Lijiang River watershed分类
管理科学引用本文复制引用
蓝贵文,张凡,吴静,江凡..漓江流域"三生"功能时空分异特征及动态模拟[J].水土保持研究,2024,31(2):431-442,12.基金项目
国家自然科学基金(41861050) （41861050）
广西空间信息与测绘重点实验室资助课题项目(1404524-06,16-380-25-09) （1404524-06,16-380-25-09）
