摘要
生态系统服务价值的研究是目前生态学研究的热点之一。以阿勒泰为研究区,采用中国科学院资源环境数据库中的全国1∶100 000土地资源利用分类系统进行遥感影像的精确解译,应用1990和2000年TM的合成影像解译结果,并且参照该地区的地形图、植被覆盖图和实地GPS景观照片库验证了分类的典型区域。基于GIS(ArcGIS9.2)对阿勒泰地区近10年来景观格局变化进行了研究,计算了研究区景观面积、斑块个数、平均斑块面积、多样性指数、均匀度指数、优势度指数、破碎度景观生态指数,在此基础上研究了生态系统服务价值。可以看出,1990到2000年间的森林、草地、湿地依次减少3.12%、1.75%、0.21%,而水体和农田分别增加4.03%、11.7%。因此,生态价值比1990年都有明显变化,表明了该地区生态系统服务功能总和有所下降。
Ecosystem services value（ESV） has been one of the hottest issues in the field of ecology. Taking Altai as the study area, remote sensing images are interpreted precisely by using classification system of land use at the scale of 1 to 100,000 in the resources and environment database of Chinese Academy of Sciences. With interpretation results of composite TM images in 1990 and 2000, the topography of this aera, the vegetation coverage maps and GPS landscape photos taken in the field , the typical regions are verified. Based on GIS （ArcGISg. 2）, the changes of landscape pattern of the Altai area in the past 10 years are studied, the landscape area, the number and average size of patches, diversity index, evenness index, dominance index and fragmentation landscape ecological index are all calculated. Furthermore, ecosystem services value （ESV） is studied. The result shows that forest, grassland and wetland are decreased by 3.12%, 1.75%,0.21%, while waters and farmland are increased by4.03%, 11.7% respectively from 1990 to 2000. Therefore, ecological value has changed apparently to be compared with 1990 indicating that the ecosystem services function in this aera have declined.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2009年第1期147-151,共5页
Xinjiang Agricultural Sciences
基金
国家教育部基金项目(2005037812)
中国沙漠气象科学研究基金项目(Sqj2005010)
作者简介
孔伟斌（1982-）男，新疆阿克苏人，硕士研究生，研究方向为景观生态学，（E-mail）kongvb@163．com。
通讯作者：师庆东（1964-），男，山东成武人，教授，博士，硕士生导师，研究方向干旱区生态环境，（E-mail）shiqingdong@126.com.
