Analysis on Change of Land Use and Land Cover and Landscape Pattern in the North of Yinshan Mountain

Using Landsat TM/ETM+ satellite remote sensing data in growth season of 1989 and 2002 and the unsupervised classification method,the information about land use and land cover in the north of Ying mountain was picked up.And supported by geographic information system(GIS),spatial analysis of the landscape p attern change in the north of Yin mountain was studied.The result showed that: Firstly,farmland,shrub,high-covering and mid-covering grassland were the main land use types.The change of unused land was the most intense unit in the land types from relatively dynamic degree and the contribution of mid-covering grassland to land use and land cover of the north of Yin mountain was largest from absolutely dynamic degree.Secondly,the area of farmland,forest,shrub,low-covering grassland and unused land increased in evidence from transform matrix of land use,while the area of high-covering grassland and mid-covering grassland de creased absolutely.The area of water and urban land were small and the change was not in evidence.Third,the patch density and edge density in the north of Ying mountain increased and the aggregation index decreased from 1989 to 2002.It proved that landscape fragmentized extent aggravated in this 13 years.Shannon's diversity index increased and it reflected that landscape form had a slight single trend.