By using digitized land use maps of Beijing in 1982, 1992 and 1997 and employing GIS spatial analysis techniques, this paper conducts an empirical study on the
In the mid-1990s, we established the national operative dynamic information serving systems on natural resources and environment. During building the land-use/l
About 70 examples of Quaternary fauna in China's tropics are enumerated in this paper. Of which about 40% of the examples can be found even in cooling stage
The impact of interbasin water transfer on environment is very significant. The affected area of the west route scheme of the South to North Water Transfer Proj
EDSS is a comprehensive software system for water quality management in tidal river networks in general and for the Pearl River Delta in particular. Its purpose
The paper respectively adopted physio-chemical properties of every soil stratum from 2473 soil profiles of the second national soil survey. The corresponding ca