Research on Optimization of Geog-raphical Space in Southwest Moun-tainous Cities Based on Ecological Zoning—Taking Zhaotong as an Example
Dealing with the adaptability of protection and development to resources and environment is an important challenge in the optimization of urban space,yet there is still a lack of complete and applicable research paths in mountain cities.Taking Zhaotong,a mountainous city in southwest China,as a research area,this paper predicts the multi-scenario land development in 2035 based on ecological zoning plans and then verifies the reasonability of zoning.The results indicate that:1)the current habitat quality in Zhaotong city is good,but the overall landscape pattern is fragile;2)by coupling two indicators,an ecological conservation zone is planned with the main functional orientation of protecting current habitats with the best quality,a key restoration zone is planned with the main functional orientation of restoring areas with poor habitats and fragile landscape patterns,and an urban and rural development zone is planned with the main functional orientation of rational development and utilization of non-fragile areas,accounting for 46.08％,15.79％and 38.13％of the total urban area,respectively;3)under the protection and development scenario that follows the zoning planning,the comprehensive benefits of ecosystem services are better than the current situation and the economic priority development scenario,and at the same time,the construction land area of Zhaotong can achieve reasonable growth.The research path of"zoning planning-land development projection-comparative assessment"has a positive significance in avoiding potential risks and balancing relationships between economy and ecology for mountainous cities in Southwest China,which tend to be more ecologically sensitive,economically underdevel-oped and with high construction needs.
habitat qualityvulnerability of landscape patternecological zoning planningmountainous citiesurban space
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