摘要
应用喀纳斯自然保护区1980,2005年两个时期的LandsatTM影像解译数据,采用Costanza生态系统服务价值计算公式,参照中国单位面积生态服务价值系统,确定了喀纳斯自然保护区生态系统单位面积生态服务价值系数,分析了保护区土地利用变化对其生态系统服务价值的影响。结果表明,保护区林地面积在减少,草地,水域、建设用地面积有所增加;研究期内生态系统服务价值从26.79亿元减少到26.02亿元,天然有林地和高覆盖度草地的减少是生态服务价值降低的主要原因;保持土壤、维持生物多样性、气候调节等各单项功能服务价值均呈现不同程度的减少,说明保护区生态环境不断趋向恶化。
Use Landsat TM image interpretation data in 1980 and 2005,based on the Costanza method and modified the Chinese land ecosystem services unit area value proposed by XieGaodi,the service value coefficient of unit research area of ecosystem was confirmed.By the model of land use dynamic degree and the coefficient of sensibility,this paper analyzed the responses of ecosystem services value to change of land use.The results showed that the forest decreased,woodland,water area land increased slightly;the total ecosystem service value had decreased 0.773×108 Yuan from 26.79×108 Yuan of 1980 to 26.02×108 yuan of 2005.The reduction of natural forest and the dramatic cover-high woodland were mainly responsible for the decrease of the ecosystem services value;the value of soil conservation,biodiversity protection,gas and climate regulation etal.had decreased in different level.The ecological environment of Kanas Natural Reserve was degraded constantly,it should take measures to protect the ecological environment and develop resources reasonably.
出处
《地域研究与开发》
CSSCI
北大核心
2011年第3期123-127,共5页
Areal Research and Development
基金
国家自然科学基金项目(49961022)
