Study of Land Use Change in Shenmu County Based on RS & GIS
神木县近10年生态治理效果评价

This paper takes Shenmu county as an example. Shenmu county is located in the northern-most part of Yulin prefecture. It covers an area of 7 635 km~2. Depending on 1986 and 2000 TM images and other data, we achieved the land-use change data after interpretation. This paper analyzed the situation of land-use change in temporal and spatial aspects with the GIS and statistic methods. Then this paper analyzed the situation of landscape change with FRAGSTATS 3.3. The results show that: in recent 15 years the cultivated land and the grassland increased by 5 161.11 hm~2 and 56 462.25 hm~2 respectively, the non-used land decreased by 43 763.01 hm~2,the change rate of non-used land is most high. In the direction of land-use change the conversion from non-used land to grassland land and forestland is prominent. The results also show that the landscape structure changed dramatically during the past 15 years. The decrease of Shannon's diversity index and evenness index manifested that the landscape heterogeneity and landscape diversity decreased. The land conservation works well in recent years.