Abstract:

Landscape indices are simple quantitative indicators that can highly concentrated the information of landscape pattern, reflect its composition and certain aspects of characteristics of spatial configuration .In this paper, taking sushuihe watershed as an example, using the TM image in 2008 of this watershed, apply RS and GIS technology ,and with the help of Fragstats software we analysis the 12 kinds of usual landscape pattern indices from the different scale. The result shows: (1) PD、ED、LSI、SHAPE-MN、FRAC-MN、CONTAG and AI showed a gradual downward trend With the increasing grain size. (2) PAFRAC showed a gradual upward trend with the increasing grain size. (3) LPI、SHDI and SHEI showed a complicate trend with the increasing grain size.