Geoscience landscape division and tourism zonation in the mid-southern section of the Hengduan Mountains, eastern Qinghai-Tibet Plateau

摘要

The mid-southern section of the Hengduan Mountains is a typical region of mountainous landscape in western China and is the core region of "Shangri-La",a world-famous ecotourism destination.The landscape classification system is an important scientific basis for landscape protection and tourism development in this region.By combining geology and geography and referring to the concepts of "system tract" and "tectonic system" in geology,this paper comes up with grading standards for the geoscience landscape system of this region.Based on the regional stratigraphic structure,tectonic fault marks and geomorphological differentiation,this paper comes up with 2 Grade Ⅰ geoscience landscape system tracts,8 Grade Ⅱ geoscience landscape systems,21 Grade Ⅲ geoscience landscape areas,and 165 representative Grade ⅣV geoscience landscape attractions.According to the main classification methods for the geological heritage and tourism landscapes,the geoscience landscapes can be divided into 4 categories,16 types and 19 subtypes.On this basis,23 eco-tourism areas of the mid-southern section of the Hengduan Mountains can be delimited.The study provides a theoretical direction and method reference for the geoscience landscape division and tourism zonation,which has an important significance on the mountain landscape protection and tourism development in the regions of complex geo-environments.