摘要
通过建立西藏生态环境稳定性评价指标体系和利用AHP法确定评价因子权重,构建西藏生态环境稳定性综合评价模型,采用栅格G IS的叠加分析功能生成评价结果图,根据结果对西藏生态环境稳定性的空间分布特点做出分析,并提出相应对策。研究表明,西藏生态环境稳定性的总体状况良好,稳定性差的区域主要分布在雅鲁藏布江中下游地区,约占全区面积的9.78%,因此,对该地区要加大生态环境建设力度,防止生态环境的进一步退化。
By making a evaluation index system and using AHP to determine the evaluation factorg weights, this paper builds the valuation model of eco-environmental stability of Tibet and uses the overlay function of rasterGIS to make a result map, and finds the distribution characteristics of eco-environmental stability of Tibet based on the analysis of result map. The unstable area that is only 9.78 % study shows that the eco-environmental stability of Tibet is almost good and the of the total area of Tibet is distributed in the middle and low reaches of the Yarlung Zangbo river. To protect the eco-environmental of the unstable area from tarther degenerating, the government should pay more attention on the eco-environmental construction work on this area.
出处
《地理科学》
CSCD
北大核心
2005年第5期573-578,共6页
Scientia Geographica Sinica
基金
国家自然科学基金资助项目(50099620)
