生态旅游区环境变化与可持续旅游发展——以张家界为例

生态旅游区在扩大接待能力，增加旅游注入的同时，不可避免地破坏了景区生态环境。既要接持更多的过夜游客，增加旅游收入，又要使旅游区生态系统维持在安全的水平上，开发建设规模多大为宜，这是许多生态旅游区亟待解决的问题。本文提出了基于环境脆弱因子的建设规模容限值计量模型，并在典型的生态旅游区张家界进行了验证。通过计算得出了在不同的建设规模条件下，张家界景区最为脆弱的环境因子-总磷含量的变化状态。实证研究表明，宾馆规模容限值模型是分析生态旅游区环境变化可持续发展的有效工具。

ENVIRONMENT CHANGE AND SUSTAINABLE DEVELOPMENT IN ECOTOURISM AREA:A CASE STUDY OF ZHANGJIAJIE

With the development of the tourist industry in ecotourism areas, the ecological environment quality of scenic zones began to deteriorate yearly. What building scale is the best in the way of supporting the security for the ecosystem in the ecotourism area? Many ecotourism areas come across this kind of problem. A threshold model for the most fragile environment factor is built in this paper. And this model was checked in Zhangjiajie, a typical ecotourism area. From the model we figured out different total phosphate content in the water body in Zhangjiajie according to different building scale. The illustration proved that the model is a useful method to analyse the problem about the environment change and the sustainable development in ecotourism area.