晋江市土地利用变化对生态系统服务价值的影响

以晋江市为研究区,依据2005年,2010年和2015年3期土地利用数据,从生态系统服务功能角度,运用Costanza的方法,结合谢高地修正的我国生态服务价值当量因子表,分析了晋江市土地利用变化与生态服务价值的响应关系。结果表明:2005-2015年,晋江市的城镇用地显著扩张,而耕地和林地却急剧减少,土地利用的生态系统服务价值总体呈逐年下降趋势。通过分析晋江市土地利用变化对生态服务价值的影响可以为科学合理利用土地,保障人口、资源、环境的可持续发展提供决策支持。敏感性分析表明,生态服务价值对生态服务价值系数的变化是缺乏弹性的,因此结果是可信的。在编制土地利用规划时应将生态服务价值考虑其中,尤其是应注重保护湿地、水域、林地等生态服务价值系数高的土地利用类型,以期实现晋江市的可持续发展。

Dynamics of land use and its influence on ecosystem service value in Jinjiang City

Based on land use data in 2005, 2010 and 2015, and the Costanza's method and the coefficients proposed by Gao-di Xie, this paper examined the effects of land use change on ecosystem services value from the perspective of ecosystem services in Jinjiang City. The results showed that the land use in Jinjiang City changed considerably during the period from 2005 to 2015. Town and construction land increased intensively, while cropland and forest decreased evidently. The total ecosystem service value of land use in Jinjiang City decreased year by year. Analyzing the effects of land use change on ecological service value in Jinjiang City can provide support for scientific and rea-sonable land use, as well as the sustainable development of popu-lation, resources and environment while making decisions. Coeffi-cient of sensitivity analysis showed that the ecological service value was not sensitive to the change of ecological service value coefficient. So the result was credible. As a result, ecosystem services value is recommended to be taken into account in the for-mulation of land use planning, especially the conservation of wet-land, water and woodland of high coefficients of ecosystem services value in order to achieve sustainable development of Jinjiang City.