重庆缙云山不同植被类型空间结构特征分析  

Study on Spatial Structure of Different Vegetation Types in Jinyun Mountain of Chongqing

作　　者：申彦科[1] 王玉杰[1] 成晨[1] 

机构地区：[1]北京林业大学水土保持学院水土保持与荒漠化防治教育部重点实验室,北京100083

出　　处：《林业调查规划》2009年第5期39-42,共4页Forest Inventory and Planning

基　　金："十一五"国家科技支撑项目"重庆北部水源区水源涵养林构建技术试验示范";国家自然科学基金项目(30671661)

摘　　要：将地理信息系统(GIS)与景观格局分析软件FRAGSTAS相结合,选取了9个斑块类型指标和l3个景观指标,从斑块类型和景观2个水平上分析了缙云山各植被类型空间结构特征.结果表明:在斑块类型水平上,研究区的优势斑块类型是马尾松林,占52.70%,其次是慈竹林,占20.90%;各植被类型斑块数目和粒径大小差异较大,空间形状较复杂.景观水平上,缙云山不同植被类型总数为12个,斑块数目众多,且斑块间相隔距离远,分布较离散,最大斑块占景观总面积的24.69%,景观类型相对单调,整体景观由少数景观类型控制,某种优势景观类型形成了良好的联通性.The paper selects 9 patch-type indexes and 13 landscape indexes and combines with GIS and FRAGSTATS to analyze landscape patterns of different vegetations in Jinyun Mountain. The results of the analysis show that the most dominant patch-type is Masson pine stand, accounting for 52.7% ; and the second is bamboo forest, accounting for 20.9% in term of patch-type. Both the number of patch-type and particle size of different vegetations have great difference, and spatial shape is a little complicated. Concerning landscape, the number of different vegetations of Jinyun Mountain is 12, the number of patch is large, and the distance between patches is so big, appearing decentralized distribution. The largest ar- ea of the patch accounts for 24.59% of the total area. Landscape type is relative monotone, the whole landscape is controlled by a few landscape types and some dominant landscapes show a good connectivity.

关 键 词：植被类型 空间结构特征 景观 斑块 GIS FRAGSTATS 缙云山 

分 类 号：S718[农业科学—林学]