Comprehensive evaluation of ecosystem diversity in Yulong Snow Mountain Nature Reserve based on optimize PSR model
To make a more scientific and quantitative evaluation on the results of ecosystem diversity protection in Yulong Snow Mountain Nature Reserve,the third national land survey,the seventh national census,a map of forest land in 2020,and the result of unified confirmation and registration of natural resources in 2022 in Lijiang,Yunnan Province were taken as the main basic data.Among the many evaluation models,a more suitable and stable PSR model was selected for the Reserve for the first time.Qualitative and quantitative evaluation of ecosystem diversity in the Reserve was conducted at 3 levels,including pressure,state and response.Finally,the comprehensive evaluation index system value of 7.21 was obtained,indicating that the Reserve has rich ecosystems,strong integrity,less human interference and strong biodiversity maintenance function.
geographic information systemYulong Snowmountainecosystem diversityPSR model