郁闭度对风景游憩林林下植被及林内景观的影响  

Impacts of Canopy Closure on Undergrowth and Landscape in Scenic Recreational forest a Case Study of Platycladus orientalis-Robinia pseudoacacia forest in Beijing

作　　者：章志都[1] 徐程扬[1] 董建文[2] 连志刚[3] 

机构地区：[1]北京林业大学林学院 [2]福建农林大学园林学院,福州350002 [3]福建省德化县规划建设局,德化县362500

出　　处：《中国城市林业》2008年第2期10-13,共4页Journal of Chinese Urban Forestry

基　　金：十一五"林业科技支撑计划(2006BAD03A00-6);北京市农委项目"北京市生态林经营管理技术研究与示范

摘　　要：文章试图通过分析郁闭度对林下植被和林内景观的影响,探讨部分群落生态学因子与林内景观美景度的关系,为风景游憩林经营管理提供数量化指标。研究结果表明:所调查风景游憩林侧柏刺槐林的林内景观美景度不高,急需进行人工干预;不同郁闭度类型林下植被的物种组成成分和物种多样性指数均存在差异,郁闭度0.6～0.7时,Simpson指数、Shannon指数和均匀度最大,生态优势度最小;尽管林内景观美景度与郁闭度的关联性不显著,但林下植被物种Simpson指数、Shannon指数、均匀度与美景度标准化值呈显著负相关,生态优势度与美景度标准化值呈显著正相关。综合考虑风景游憩林的多种功能需求,本研究认为风景游憩林侧柏刺槐林的郁闭度以0.6～0.7为宜。An attempt was made to develop quantitative indicators for the management of scenic-recreational forest based on the relations of ecological factors of forest community to landscape beautifulness through analysis of impacts of canopy closure on within-forest undergrowth and landscape.Results indicated that the within-forest landscape beautifulness of Platycladus orientalis-Robinia pseudoacacia plantation was relatively low,therefore,artificial intervention is needed for improvement.Species composition and s...

关 键 词：Scenic-recreational FOREST Platycladus orientalis-Robinia PSEUDOACACIA PLANTATION Within-forest landscape Canopy closure 

分 类 号：S727.5[农业科学—林木遗传育种]