基于SPOT影像的四川省剑阁县景观格局现状分析  

SPOT 5 Based Landscape Pattern Analysis of Jiange County in Sichuan Province

作　　者：王吉斌[1] 刘晓双[1] 李才文[1] 

机构地区：[1]国家林业局西北林业调查规划设计院,陕西西安710048

出　　处：《西北林学院学报》2014年第2期257-261,共5页Journal of Northwest Forestry University

基　　金：森林资源清查与动态监测项目(JC2012-32)

摘　　要：基于景观生态学理论,以四川省剑阁县作为研究区域,以2011年该地区的高分辨率遥感影像SPOT-5、森林资源清查数据、林相图资料和实地补充调查数据为基本资料,基于GIS平台和Fragstats软件,对研究区域的土地利用类型及森林景观格局进行分析。结果表明:1)研究区域土地景观区划中,有林地类型与草地类型的景观面积最大,斑块数目多,为优势景观,对研究区景观主体格局的影响较大。2)有林地景观分维数与香农多样性指数数值最高,其景观整体稳定性较好;其他景观类型的分维数与香农多样性指数数值相对较低,受人为干扰比较强烈,稳定性相对较差。3)景观特征整体上随着该地区海拔高度的上升,其呈现结构更规则、形状更简单和大斑块分布的特点。Based on landscape ecology theory, land use types and landscape patterns in Jiange County, Si- chuan Province, China were investigated by using GIS platform and Fragstats software to process relative data, including high-resolution remote sensing images SPOT-5 in the region in 2011, forest inventory data, forest map data and field survey data. The results were reported as follows. I） Woodland and grassland oc- cupied the largest areas and patch numbers, they were the dominant landscapes, which exhibited signifi- cant influences on the landscape pattern of the study area. 2） Fractal dimension index （FDI） and biodiver- sity index （BI） of woodland were the highest, indicating its high overall stability. However, FDI and BI of other landscape types were relatively low, implying that they were sensitive to the disturbance of human being activities. 3） As the increase of altitude, the landscape was characterized by features of more regu- lar, more uniform, and larger patch distribution.

关 键 词：空间分析 景观格局 高程 四川剑阁 

分 类 号：S771.8[农业科学—森林工程]