黄龙山蔡家川林场景观格局分析

Study on the Landscape Pattern of the Caijiachuan Forest Farm in Huanglong Mountain

以黄龙山蔡家川林场1997森林资源二类调查数据、1∶10000林相图和1969年1∶50000的地形图为基础,利用GIS软件,应用地理信息系统技术,辅助Fragstats3.0景观软件,对林场的景观格局进行了分析。选取的景观空间格局度量指标包括:斑块数量、斑块大小、斑块密度指数、优势度指数、均匀度指数、多样性指数等。研究结果表明:林地是蔡家川林场的景观基质,森林景观以阔叶林为主,以其很强的萌蘖能力在各景观中占绝对优势。蔡家川林场森林景观异质性高,森林类型丰富多样。油松林和杨树林受人为干扰较大,形状简单。

In this paper,with GIS software with the support of geographical information system and Fragstats3.0 landscape software,the landscape patterns of Caijiachuan forest farm were analyzed based on a forest type map（1∶10 000）,class Ⅱ investigation of forest resources and 1∶50 000 topographic map.The selected indices included patch number, patch size, patch density index, dominance index,evenness index and diversity index. The results showed that the matrix landscape in this area was woodland,and the main forest landscape at of Caijiachuan forest farm was broad-leaved forest, which became absolutely dominant due to its intensely asexual germination.The forest landscape of the farm heterogeneity was high,the forest types were diversity.Pine forest and poplar forest were mainly managed by human,the patch shape was simple.