The Ecological Evolution Analysis of Heritage Sites Based on The Remote Sensing Ecological Index—A Case Study of Kalajun–Kuerdening World Natural Heritage Site

As very fragile natural ecological areas, the spatiotemporal environment (EE) analysis of World Natural Heritage Sites (WNHSs) is particularly important for their conservation and sustainable development. Timely, objective quantitative evaluation EE change characteristics WNHSs great significance ecological, environmental protection government policy formulation. This study quantitatively evaluates distribution Kalajun–Kuerdening WNHS by selecting Remote Sensing Ecological Environment Index (RSEI) 2006, 2011, 2016 2021. We studied differences in buffer zones nominated sites heritage patterns trends. The changes land use from 2006–2011, 2011–2016 2016–2021 were overlaid analyzed to explore relationship between evolution site. results show that (1) site was a state equilibrium 2006 form slight decline quality 2011 under influence factors, but it maintained stable with small degree fluctuation, recovery areas better grades located northwest region (Kalajun) northeast (Kuerdening) (2) grade shows neighborhood without large number leap changes. (3) From 2021, than zone, onward, difference two gradually decreased until average basically same but, spatially, most zone area. (4) types transformation caused enhancement barren–grassland, snow/ice–barren barren–snow/ice, while reduction grassland–barren barren–snow/ice. this help improve knowledge background its evolutionary process provide scientific guidance ecologically related decision making management global sites. snow ice cover an essential factor shift Site.