苏州市土地利用变化的生态环境效应研究  

Study on the Eco-environmental Effect of Land Use Change in Suzhou

作　　者：张芳怡[1,2] 邢元志[3] 濮励杰[1] 彭补拙[1,2] 

机构地区：[1]南京大学地理与海洋科学学院,南京210093 [2]南京大学金陵学院,南京210089 [3]上海大学房地产学院,上海201702

出　　处：《水土保持研究》2009年第5期98-103,共6页Research of Soil and Water Conservation

基　　金：国家自然科学基金(40871255);国家"十一五"科技支撑计划(2006BAJ05A02;2006BAJ05A08);江苏省研究生培养创新工程(CX09B_006Z)

摘　　要：以苏州市为例,利用1980年、1995年、2000年三期TM遥感影像解译图获取土地利用变化数据。首先,对苏州市1980-1995年和1995-2005年两个时段的土地利用变化特征进行分析。然后,通过定义不同土地利用类型的相对生态服务价值,分别运用区域生态环境质量指数和区域土地利用变化类型生态贡献率,对研究时段内苏州市土地利用变化的生态环境效应以及导致苏州市生态环境质量变化的主导土地利用变化类型进行分析与评价。结果表明,1980-2005年苏州市的生态环境质量不断下降,苏州市的生态环境质量指数从0.4609下降到0.4431,且下降速度越来越快。其中,导致苏州市生态环境质量恶化的主要土地利用变化类型是耕地向城乡建设用地的转变,促进苏州市生态环境质量改善的主要土地利用变化类型是耕地向水域用地的转变。This paper obtained the data of land use change based on the TM images interpreted in 1980, 1995 and 2005 taking Suzhou as a case study. First, this paper analyzed the characteristics of land use change during 1980-1995 and 1995-2005. Then, eco environmental quality was associated with land use types according to the relative ecological service value of different land use types. The effect of land use change on the eco-environmental quality was measured and quanlified by calculating the regional eco-envi ronmental indices. The major land use transformation types causing the change of eco environmentalquali ty were found out by calculating the contribution proportions of land use transformation types to eco environmental quality. The regional eco-environmental quality index decreased from 0. 460 9 to 0. 443 1 in Suzhou from 1980 to 2003, which reflected that the eco-environmental quality was continually decreasing; and the rate was faster and faster. In the study phases, the transformation from arable land to constructive land was the major land use transformation type deteriorating the eco environmental quality; the transfor mation from arable land to water area was the major land use transformation type improving the eco envi ronmental quality.

关 键 词：土地利用变化 生态环境效应 生态系统服务价值 生态环境质量指数 

分 类 号：F301.24[经济管理—产业经济] X171[环境科学与工程—环境科学]