Web-based Process Model Of The Watershed Land And Water Resources Geographic Database Construction And Applications

From the 20th 80s, the global environment problem has been regarded as an important one, and the human beings have put their views into the research of global changes more than ever. In those researches, the land surface system is a most complex and important system and it plays a key role more affected by human beings, and the quantificational research of geography process has been turned into a focus in the geographic studies.There is a close relationship between the quantificational research of geography process and the research of mathematics model. With the development of computer technology and more studies in geography process, mathematics model of geography process and computer simulate of basin process have been improved quickly also, and most achievement has been attained. In this research, firstly, we can colleted many mathematic models about the geography process of drainage area; Secondly, those models had been coordinated and classified, and a model database of mathematics model about geography process had been set up. The geography process model could be shared by used ASP technology this database assisted by SQL Sever 2000. Thirdly, this database could fulfilled the model integrate from calculations of basic parameters, and some model could be calculated and its result could be sent to user. Lastly, an idea of soil erode model had been put forward.This research was imbursed by a National Natural Science Fund project titled Integration And Systematization Of Mathematic Models For Soil And Water Resources Study In A Basin And Its Application. This study established a base for the share of geography information and it also possessed an important significance for the lately geography process quantificational study and its models improvement and integration.