Fragile ecological environment is a unstable factor influence on live-supporting environment

lead to environment gradually deteriorated

in the paper processing from landscape and landscape ecology

first the meaning of mapping in landscape heterogeneity under landscape information flow determined by informatics

the measurement

the character and obtaining methods of landscape information flow have been discussed

in the meant ime

the way and expression of transform in landscape information flow pattern have been introduced. Second

the lanscape information effect in geoscience heterogeneity information has been discussed

in particularly the heterogeneity information in fragile ecological landscape has been analyzed. In further the mapping method of landscape heterog eneity in fragile landscape ecological environment based on GIS has been stated. Using date acquired by Landsat TM 1:250000 and 1:500 000 around 1990s and GIS in southeast of Horqin Sandy Land

combining with dates of investigated to the area from 1970s to 1980s

fragile ecological landscape heterogeneity map and land cover in the area have been provided.