Analysis and Evaluation on Landscape Pattern of Songpan County with Remote Sensing and Gis

Satellite remotely sensed data has significant potential use in analysis and evaluation on Landscape Pattern. Relying on the recent advances in satellite remote sensing and geographic information system (GIS) techniques, this paper aims to probe into the analysis and evaluation on landscape pattern of Songpan county, which located in the north of Sichuan province, with RS and GIS. First, the geo-spatial remote sensing of study area was classified into six types using supervised classification method. Second, the landscape patterns and attribute data were picked up and systemically analyzed with GIS software and landscape analysis software. Finally, the landscape patterns were analyzed. And some results were got: (1) The irrigation woodland and natural turf occupy are utterly predominant in Songpan county. (2) The average shape index of the six types of patches is less than two, which indicates that the shape of patches is neat, and its nature zoology succession has been interfered by human beings. (3) Fragmentation values of the patches are between 0.0021 and 0.0288, indicating a common degree of fragmentation in Songpan County. (4) Landscape diversity index, max diversity index, landscape dominance index and landscape evenness index are used to analyze the whole landscape pattern in Sonpan County, and the result shows that the distribution of landscape pattern of the Songpan County is uneven and the degree of the whole diversity is low. * Corresponding author. Jian.Ji, E-mail: [email protected], Tel: 13699061143