Ecological vulnerability assessment of scenic spots based on RSEVI and geographic detector
As a type of ecosystem that plays an indispensable role in conserving regional environments and boosting regional economies,scenic spots have recently been confronted with several ecological problems,such as soil ero-sion and vegetation degradation.There are critical needs to monitor and evaluate the ecological vulnerability at a scenic spot scale.We established a remote-sensing-based ecological vulnerability index(RSEVI)based on multi-source remote sensing imagery.This index was applied to the 12 national 5A scenic spots in Anhui Province,Chi-na,to investigate the spatiotemporal changes of ecological vulnerability for the years 2010,2015,and 2020.The driving factors of these changes were analyzed using a Geodetector model.The overall distribution of ecological vul-nerability differed greatly among the national 5A scenic spots in Anhui Province,with the level of vulnerability clas-sified as moderate for most areas.Most of the scenic spots consisting of landscape geography and cultural relics dem-onstrated an overall alleviation in ecological vulnerability,while that of the water scenery and entertainment and shopping exhibited a worsening trend over these years.Differences among different scenic spots varied in the domi-nant and interactive factors,among which human disturbance index had a significant interaction with other evalua-tion factors.Our results could offer methodological reference for the evaluation and preservation of the ecological environment in scenic spots,and provide a basis for regional ecological construction and management planning.
ecological vulnerabilityremote sensing based indexgeographic detectorscenic spot
万方数据
维普
