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This paper analyzes the growing need of information technology to conserve water resources, capable of storing, integrating, and displaying geographic information. At present, the Geographic Information System is not only limited to cartography but also related to various data management such as natural resource management, environmental impact assessment, and etc. The Information technology coupled...
This study presents GIS to monitor urban lake area change in Wuhan city, including four time-series Landsat TM and ETM+ images of 1991, 1995, 2000 and 2002, Ikonos images of 2000 and 2002, and remote sensing images of Google Earth's in 2005 were used here. Then we analyzed the temporal evolution characteristics of urban lake. The results showed that the total area of lakes in the urban area decreased...
Dahuangpuwa detention basin is an important flood control project in Haihe River Basin. It provides complex ecological functions and services. Examples of the ecosystem's services are flood control, water purification, biodiversity, production output and recreation. Based on field surveys and research of the study area, the economic values of the main ecosystem services in Dahuangpuwa are computed...
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