摘要
遥感和地理信息系统技术的发展为研究区域生态环境变化提供了有效手段 ,文中以 1987年海南植被类型分布图 ,1988年海南省土壤侵蚀图和 1998年的TM遥感资料为信息源 ,综合GIS参与监督分类及目视判读的方法 ,以GIS为工具提取生态因子信息并按景观生态类型进行了评价。结果表明海南生态环境质量由中部向外依次降低 ,森林生态环境好 ,部分园林和农田生态环境质量较差。
RS is at present the primary and effective means for measurement of ecological conditions. GIS provides an efficient tool to analyze the status and the changes of ecological environment. Information from 1987 vegetation distribution map, 1988 soil erosion map and 1998 TM Landsat data are extracted to construct ecological map and to evaluate the landscape ecological forms in Hainan Province according to the theory of landscape ecology by using the method of integration of visual interpretation and supervised classification with the help of GIS. The result shows that the quality of the ecological environment in Hainan declines from the central part of the island to its periphery. The ecological environment of the forest system is good, while that of parts of the agrarian system is worse.
出处
《热带地理》
2001年第3期198-201,共4页
Tropical Geography
