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Land use/land cover change (LUCC) as an important part of global environmental change has always been one of the hottest issues of ecology research. Based on RS and GIS methods, land use information for 1990 and 2008 was acquired from TM images and analyzed in Yanqing County, Beijing, China. This paper analyzes spatial-temporal land use change in two basins covering the study period. The results showed...
In the Yanqing area, Beijing, China agriculture water use and soil erosion are significantly serious due to large-scale agricultural irrigation; It has been the most prominent issue of agricultural irrigation for water resources protection, mainly because irrigation water use utilization efficiency is very low. The key issue of water-saving agriculture is to improve the utilization of irrigation....
Extracting watershed features from DEM (Digital Elevation Model) is a very important task in Hydrologic study, and also it is the pre-process of hydrological simulation analysis. This paper introduces a very useful method for Hydrological simulation analysis based on extracting watershed features from DEM using Arc Hydro Tools. Arc Hydro is a geospatial data model especially GIS for Water Resources,...
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