Application of national satellite image to investigation of natural resources and environment is a study of multidiscipline and high-level thematic mapping.In this study

we systematically analyzed the basic characteristics

quality and technical in dexes of the image

and evaluated the image from the view of point of accuracy

use frequency and effect. Moreorer a comparative study of computer image processing and optic processing was done to solve the geometric registration of the image using multinomial and finite element method.The principles of remote sensing in earth scinences were used in the investigation of resources and environment of the region to analyze hydrologic elements

regionalize hydrologic environment types

calculate water-yield; study the ratio relationship among agriclutural landuse

non-agriclutural landuse and total area

point out the regional difference of landuse type;res-earch the qualitative and quantitative perfects of low-yield area environment; cornprensively investigate forest resources

including ecologic environment of the suitable-forest area

site and ecologic and economic perfects of suitable-forest tree; find out the travel circle surrounding Beijing and function regionalization

storage mechanism of mineral resources and crustal stability

evolution of natural environment in last ten thounsand years and the relationship between them and land harnessing

planning and city and town construction. We also compiled one series of thematic maps of high-level

and calculated the rsources data.