城镇化对生态服务价值的影响——以湖南省长株潭地区为例

Effect of Urbanization on Ecosystem Service Value:A Case Study of Changsha-Zhuzhou-Xiangtan Region,Hunan Province

在对生态系统服务价值系数修正的基础上,计算分析了长株潭地区2000年和2010年的生态服务价值及其时空变化特征,并探讨了城镇化对生态服务价值的影响。结果表明:①过去10年,城镇用地增加了14.27%,林地面积大量减少;②生态服务价值减少29.8亿元,减少超过5%,林地的锐减是其生态服务价值减少的主要因素;③单项生态服务价值中废物处理与食物生产服务价值在增加,其他各单项价值均减少;④生态服务价值变化在空间上呈东南-西北带状分布,生态服务价值剧烈减少的区域包括长沙市辖区以及株洲市辖区,增加的区域仅有株洲的炎陵县;⑤城镇化与生态服务价值之间存在负相关关系。

Based on the modification of eco-system service value, this paper analyzes the eco-system service value and the features of temporal and spatial variation of Changsha-Zhuzhou-Xiangtan region in 2000 and 2010 and discusses the effect of urbanization on the ecosystem service value （ESV）. The results show that in the past 10 years （1） forest area has greatly decreased while the urban area increased by 14.27%, （2） the ESV loss of the whole region has reached 2. 98 billion yuan, more than 5 % of the total amount, the sharp decrease of forest land being the major factor of the ESV loss, （3） in the single item of ESV the service value of waste treatment and food produetion has been increasing while the value of other items decreasing, （4） change of ESV in the region is distributed along the southeast-northwest areas, and the areas in which ESV decreases dramatically are in the northwest and center of the Changsha-Zhuzhou-Xiangtan region, and （5） the ESV has an negative correlation with the urbanization.