县级土地利用变化与生态系统服务价值研究——以湖北省江陵县为例

Research on the change of county land use and ecosystem service value——A case of Jiang Ling County in Hubei Province

研究土地利用变化对区域生态系统服务价值的影响,可以为区域生态环境的保护和恢复提供科学依据;利用江陵县土地利用变更调查数据和相关统计资料,应用Costanza生态系统服务价值计算公式,采用谢高地等人的中国陆地生态系统单位面积生态服务价值表进行计算;结果表明:1996～2004年研究区耕地、园地、林地和未利用地在减少,其中耕地减少最多,达342.06hm2;水域、建设用地和牧草地在增加,水域增加最多,达596.31hm2;ESV总体呈增长趋势,由1996年的165660.4万元增加到2004年的168170万元,水域面积增加较多是生态系统服务价值增加的主要原因;江陵县的人均GDP与生态系统服务价值有较显著的线性正相关关系,说明研究区社会经济的发展并没有以牺牲环境为代价;今后应保持这种和谐的经济发展方式,取得社会、经济、环境效应的和谐统一。

Research on relationship between land utilization changes and the region ecosystem service value may provide the scientific basis for the ecological environment protection and recovery in this region. Taking Jiang Ling county as an example. This article uses the inw：stigation data about the land utilization chan. ge and the relative statistical data from 1996 to 2004, applies the formula of ecosystem service value by Costanza,and calculates with the table of Chinese land ecosystem unit area ecology service value by Xie Gaedi. The result indicates that： From 1996 to 2004 the arable land, garden plot, woodland and unused land have been reducing, and the arable land reduced the most with 342.06hm^2; The waters, the building land and the grassland have been increasing, and the waters increased the most with 596.31hm^2; Overall ,the ESV is in the tendency of growth from 16566.04×10^5 Yuan in 1996 to 16817×10^5 Yuan in 2004,with the increase of 251.59×10^5 Yuan. The growth of ecosystem service value is mainly because the increase of the waters area; The per capita GDP of Jiang Ling county has the remarkable positive linear dependence relation with the ecosystem service value. It means the social economy development of the research area didn＇ t at the cost of the environment. From now on, it should maintain this harmonious economical development way to obtai, the harmonious unification of the social, economical and environment effect.