Landscape Pattern Changes and Eco-environmental Sensitivity Analysis in Guangxi Darongshan Natural Reserve from 2003 to 2023
In order to explore landscape pattern changes in Guangxi Darongshan Natural Reserve and reveal characteristics of changes and distributions of eco-environmental sensitivity,based on Landsat series remote sensing data,landscape pattern changes of natural reserve from 2003 to 2023 were analyzed.Eco-environmen-tal sensitivity evaluation system was constructed by six factors including elevation,slope aspect,slope gradient,land use type,normalized difference vegetation index and water buffer zone.Eco-environmental sensitivity of natural reserve was evaluated.Results showed that from 2003 to 2008,main change of land use type in Darong-shan Natural Reserve was transfer of cultivated land to forest land.From 2008 to 2013,main change was trans-fer of unused land to forest land.From 2013 to 2018,change of land use type was tended to stability,construc-tion land began to be developed,and area of unused land slightly increased.From 2018 to 2023,there were more developments for construction land,and overall landscape pattern remained stable.Comprehensive sensi-tivity of eco-environment in natural reserve did not change significantly.Extreme sensitive areas mainly distrib-uted in northwest of natural reserve.Low sensitive areas distributed in eastern part of natural reserve as strips.Overall distributions of areas with different grades of sensitivities were scattered.
国家科技期刊平台
NSTL
万方数据
