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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。
Landsat image interpretation data from two periods of Kanas Nature Reserve in 1980 and 2005 were applied to calculate the ecosystem service value of Costanza ecosystem and the ecosystem service value system of unit area in China to identify the Kanas Nature Reserve ecosystem unit Area ecological service value coefficient, analyzes the impact of land use change in the protected area on the ecosystem service value. The results showed that the area of forestland in the reserve decreased, the area of grassland, water area and construction land increased; the service value of ecosystem services decreased from 2.679 billion yuan to 2.602 billion yuan during the study period; the reduction of natural forestland and high-coverage grassland was an ecological The main reason for the decrease of service value; the service value of each single function such as soil conservation, biodiversity conservation and climate regulation all showed different degrees of decrease, indicating that the ecological environment of the nature reserve continued to deteriorate.