基于TM影像的泗顶铅锌矿区森林景观动态分析  

Dynamic analysis on the forest landscape pattern in Siding mine based on the TM image

作　　者：陈丽[1] 黎良财[1,2] 王昆[1] 王书涵[1] 宁亮亮[1] 焦志敏[1] 

机构地区：[1]北京林业大学林学院,北京100083 [2]广西生态工程职业技术学院,广西柳州545004

出　　处：《广东农业科学》2012年第9期144-147,共4页Guangdong Agricultural Sciences

基　　金：柳州市科技基金(2009021603)

摘　　要：运用景观生态学理论和景观格局指数分析方法,选用斑块面积、平均斑块面积、斑块形状指数、临近度指数、分形指数、平均最近距离、景观多样性指数、景观均匀度指数、斑块密度和聚集度指数等10种景观指数,对泗顶铅锌矿区2000—2009年近10年的森林景观格局进行了动态分析。结果表明,矿区主要森林景观类型为有林地和灌木林地;有林地和灌木林地的斑块形状较不规则,斑块边界形状较复杂,同类斑块间距离较近,呈团聚分布;由于受人为因素的影响,2005年林地面积、斑块数、斑块密度、破碎度、多样性均较小,均匀度较低,随着人们对森林环境的重视,2009年森林景观格局有了很大的优化,森林景观逐渐向复杂化、均匀化、多样化发展;景观聚集度指数逐渐增加,2009年达80.19%,景观斑块连接越来越紧密。Based on the theory of landscape and the index of landscape pattern, ten indices including total area, mean patch area, area-weighted mean shape index, mean proximity index, area-weighted mean fractal dimension index, mean euclidean nearest neighbor distance, shannon＇s diversity index, shannon＇s evenness index, patch richness density and aggregation index, were selected to analyze the dynamics of the forest landscape pattern in Siding mine from 2000 to 2009. The results showed that the main forest landscape types in Siding mine were forest and shrub. The patch shape of the forest and shrub lands were more irregular and the patch＇s boundary shape were more complex, moreover, the distance between the same patch were close and the distribution of them were reunion. By the influence of human, the total area and patch number of the forest were both smaller in 2005. At the same time, the density of patches, the patch fragmentation, the diversity index and the evenness index in 2005 were lower, too. However, as people paid more and more attention to the forest environment, the forest landscape pattern had made a lot of optimization in 2009. The forest landscape developed gradually to be more and more complicated, uniform and diverse. Landscape aggregation index increased gradually to 80.19% in 2009, and the landscape patch connected more and more closely.

关 键 词：森林景观 泗顶铅锌矿区 景观指数 

分 类 号：S718.5[农业科学—林学]