Study On The Change Of Urban Habitat Quality In Tibetan Areas Of Sichuan Province Based On Land Use Change

This paper belongs to the project of national natural science foundation of China "the urban spatial structure of Tibetan areas in sichuan province based on the theory of complex system"Study on the ecological optimization mechanism of wan(batch no.51578454).At present,China is in a period of rapid urbanization,and the sustainable development of ecological town construction has become a research hotspot in this period.As an important part of the national key ecological functional areas,the Tibetan areas in sichuan province must develop in an ecological and sustainable way.However,due to its special natural geographical environment characteristics and historical development factors,the region has caused serious damage to the ecological environment.Based on the typical towns in sichuan Tibetan areas regional development history and the research of land use change,on the basis of in-depth analysis of the land use type transformation between each other,and by using GIS software and InVEST model,quantitative analysis is made to the habitat quality,explore the specific cause of the change of the habitat quality of different periods,and in order to provide theoretical reference to sichuan Tibetan ecological and sustainable development.This paper is mainly divided into the following parts:1)to study the current situation of urban development in Tibetan areas in sichuan,and to find the entry point of this paper,namely to study the impact of land use change on habitat quality.On this basis,land use/cover change(LUCC),urbanization and habitat quality evaluation at home and abroad are reviewed.2)according to the current situation of Tibetan areas in sichuan,the appropriate habitat quality evaluation model,namely InVEST model,is selected.The principle of model evaluation,model setting process,advantages and disadvantages are described,and the representative urban areas of sichuan Tibetan region are selected as the research object on the basis of the research group.3)taking ruoergai county and aba county as the representatives of plateau towns and kangding county,dege county and daocheng county as the representatives of valley towns,this paper studies their historical development,economic and industrial development,urban construction and development,land use change and habitat quality change,and makes a preliminary analysis on the habitat quality change of this county.4)Discuss the internal relationship between land use and habitat quality change in representative cities and towns in Sichuan Tibetan region,make suggestions for sustainable and healthy urban development in Sichuan Tibetan region,and summarize the deficiencies of the full text.