Tupu Analysis of Land Use Changes in the New-born Wetland of the Yellow River Delta (YRD)

The Geoinformation Tupu is a kind of methodology that is brought up by academician Chen Shupeng, supported by such advanced technologies as Remote Sensing (RS), Geographical Information System (GIS), Internet Communication, Virtual Reality and Cartography by computer, etc Based on the theories and methods of Geoinformation Tupu, the thesis puts forward series of Tupu Model on land use based on Tupu unit in the newborn wetland of the Yellow River Delta (YRD) According to data from remote sensing and vector by ERDAS and ARC/INFO, four pieces of land use data are achieved By spatial and process integration in GRID on land use change of 1956,1984,1991,and 1996, three periods of land use change are defined by 1956～1984, 1984～1991,and 1991～1996 By analyzing three different ways of land use changes, which include changes in land use intensity, changes in land use structure and changes of distribution in the process of land use Tupu units, it provides typical applications of land use change analysis by the methods of Geoinformation Tupu It is composed of three aspects in Tupu analysis, which include spatial query in Tupu, ordinance in Tupu units and transfer matrixes of area and probability It analyzes land use changes in the three various temporal units The newborn wetland (approx 85758 hm2) in the Yellow River Delta (YRD) is located in the active river mouth in the East of the YRD, which is one separate part of the Nature Reserve in YRD During 1956 to 1996, land use intensity was arising then falling down to some extent since 1991 In land use structure, wetland and water body is the mainly usage during these period, but it tend to decline as a whole Pasture and farm land are arising greatly from wetland and water body Residential and industrial lands are the most stable type in land usage.Farm land is the second stable type in land usage Forest is the most instable type of land usage Pasture is changing most frequently in the area