土地利用变化对生态服务价值影响的研究——以吉林省为例

基于通径分析理论,通过研究吉林省土地利用变化对生态服务价值的影响,为吉林省经济发展与生态建设提供技术支撑和科学依据.结果表明：1996～2008年吉林省土地利用变化幅度较大,其中农田、草地面积分别减少42 248.8、43 934.2 hm^2,建设用地、森林面积分别增加39 822.1、47 294.5 hm^2;吉林省生态服务价值在1996 ～ 2008年呈现倒“S”的变化趋势,总值上增加了2.156亿元;森林在生态服务价值中起主导作用,农田、园地等用地类型的负向作用已经超过其正向作用.

The Research on the Effects of the Land-use Change on the Ecological Service Value with an Example of Jilin Province

Based on the theory of latus rectum analysis, this article provides technical support and scientific basis for the economic development and ecological construction of Jilin Province through the research of the influence of land-use change on the ecological service value. The results showed that the land use of Jilin Province during 1996 -2008 has changed a lot, among which the farmland and the grassland area respectively reduced by 42 248.8 and 43 934.2 hm^2 while the construction land and the forest area increased by 39 822.1 and 39 822.1 hm^2 respectively. The ecological service value of Jilin Province during 1996 - 2008 presented the trend of the upside-down ＂S＂ with the gross increasing by 215.6 million yuan. Forests play a leading role in the ecological serviee value. The negative effects of the farmland, the gardenland and other types of land use have already exceeded their positive effects.