机构地区: 北京师范大学环境学院
出 处: 《水土保持学报》 2006年第1期160-163,180,共5页
摘 要: 生态系统服务价值在理论、评价尺度、核算方法等方面的研究取得了很大的进展,但其结果的应用方面研究较少,以河北省易县为例,将生态系统服务价值应用到土地利用规划的生态效益定量研究中,这对维持生态平衡,采取合理的土地利用方式,建立可持续的土地利用模式具有指导意义。依据易县1997年、2001年和2010年的3期土地利用规划数据,估算了土地利用规划所引起的易县及其28个乡镇的生态系统服务价值的变化。结果表明,易县的生态系统服务价值从1997年的16.87×108元增加到2010年的20.06×108元,增加值为3.20×108元,总生态系统服务价值每年增长率为1.46%。土地利用变化的生态价值呈上升趋势,表明该区的土地利用规划基本是合理的,土地利用规划在取得经济效益的同时,又提高了土地利用的生态效益;但此规划还存在一些不足,如未利用土地面积占的比例较大,应对此规划进行修改,提高土地利用的生态效益。 The researches of ecosystem services value have been greatly advanced in its theory, assessment scale and evaluation methods but its results were applied little. The paper took Yi County in HeBei Province as a case. Ecosystem services value was applied in the quantitative research of eco-benefit of land use program. It is signifi- cance to keep eco-balance, adopt the reasonable manner of land use and establish the model of sustainable land use. Based on the data of land use program of 1997,2002 and 2010 in Yi County,changes of the values of ecosystem services caused by land use change were estimated for Yi County and its 28 villages and towns with referring to the table of Chinese land ecosystem services value of unit area. Results show that from 1997 to 2010,the total ecosystem service values of the study area increased from ¥16.87×10^8 to ¥20. 06×10^8. There was ¥3.20×10^8 net enhancement and a 1.46% increase per year in total ecosystem service values. The increased trend of ecosystem service values caused by the change of land use showed that the program of land use change was reasonable and right, the change of land use obtained economic benefit and increased the eco-benefit of land use at the same time. But there are some shortages in the program, for example, no-use land occupy 45% in 2010, the program should be emended to increase the eco-benefit of land use.