摘要
利用帽儿山实验林场 1999年航测照片及 1999年调查材料绘制而成的 1:10 0 0 0的林相图 ,1:10 0 0 0的土地利用现状图 (1999)和实地调查资料 ,在ARC INFO及其它统计软件支持下 ,应用地理信息系统技术 ,对帽儿山林场的景观空间格局及其多样性进行了分析。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、丰富度指数、优势度指数、均匀度指数、多样性指数等。结果表明 :帽儿山实验林场的森林景观以软阔叶林为主 ,以其很强的萌蘖能力在各景观中占绝对优势 ;在帽儿山各森林景观斑块中 ,天然次生林各景观斑块平均面积大于人工林各景观斑块平均面积 ;人工林各景观类型斑块密度指数高于天然次生林各景观类型斑块密度指数 ;天然林的景观多样性指数和景观均匀度最高 ,其景观异质性程度也最高 ,但景观优势度小 ,各景观要素对景观整体结构、功能及其变化的控制作用较弱 ,人工林则相反。
By using GIS technique, ARCINFO and other statistical software, the landscape spatial patterns and its diversities of the Maoershan Forest Farm were analyzed based on a forest type map (1:10、000), a soil utilization map (1:10、000) and field survey data. The selected indices included patch number, patch size, patch density index, richness index, dominance index, evenness index and diversity index. The results showed that the main forest landscape at the Maoershan region was soft broad-leaved forest, which became absolutely dominant due to its intensely asexual germination. In all patches, the average landscape patch area of natural secondary forests was bigger than that of plantations; the patch density of each landscape type in plantations was bigger than that in natural secondary forests. Landscape diversity index, evenness and heterogeneity of natural forest were the biggest, but its landscape dominance was smaller, and the controlment of each landscape element on the whole structure, function and change of landscape was weaker compared with plantation.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2004年第1期14-17,共4页
Journal of Northeast Forestry University
基金
国家"十五"科技攻关课题 (2 0 0 2BA51 5B0 4 0 )
关键词
黑龙江
帽儿山地区
景观格局
景观多样性
地理信息系统技术
优势度
均匀度
Maoershan forest farm in Heilongjiang Province
Landscape pattern
Landscape diversity
Dominance
Evenness
Diversity index
