Abstract:

The appropriate Transformation Grain on forest landscape indices are analyzed by vector-grid conversion. The results showed that: (1) the scale effect of landscape pattern is revealed by landscape index with changing of grain; (2) With the grain increasing, the conversion of different landscape indices showed different variation laws, the first landscape indices scale domain are 10m-80m; (3) The choice of appropriate grain can ensure the quality of characteristics of information of landscape patterns and reduce the quantity of calculation, the most appropriate granularity of landscape patterns in West Dongting Lake region are the study of 40m-80m; (4) Due to the complexity and diversity of the forest landscape, grain effect in landscape pattern, ecological processes needs further analyzed.