娄烦县岚河流域LUCC景观格局分析

利用山西省娄烦县岚河流域1995和2004年两期土地利用数据和数字化土地现状图,采用GIS技术与景观生态学相结合的方法,对该县土地利用/覆被景观空间格局进行分析。研究结果表明,耕地、牧业用地和水域呈持续下降趋势,建设用地、工矿和交通用地呈上升趋势。受人类活动的影响,1995-2004年间区域土地利用/覆被格局变化是耕地面积越大,各土地利用类型的多样性和分离度越大,而优势度在减小,破碎度在增大。因此,区域的土地利用/覆被的格局在人类活动的影响下,向不利用于岚河上游生态环境的方向发展。

Analysis on Landscape Pattern of Land Use and Conversion in Loufan County

Based on the data on land use,the digital map in 1995 and 2004,and indexes of landscape pattern and using MapGIS,SPSS 13.0 and the concepts of landscape ecology,an analysis is carried out on the pattern change of LUCC (Land Use and Cover Change). The results show that cropland,grassland and water land were decreased,and construction land was increased. Under the impact of human activities,the diversity index,fragmentation and separation indexes saw a rising trend,and the dominance was decreased during 1995 and 2004. So the pattern of LUCC in Loufan goes in direction unfavorable for the development of the upriver ecological environment in Fenhe River.