生态学杂志2012，Vol.31Issue(5)：1070-1076,7.
云南松林不同层植物分布与地形、气候因子的关系
Relationships of plant species distribution in different strata of Pinus yunnanensis forest with landform and climatic factors
摘要
Abstract
Plant community is formed under the combined action of plant and environment. In the formation and development of plant community, landform and climatic factors play important roles. On the basis of plant community investigation, and by using detrended canonical correspondence analysis ( DCCA ) , this paper analyzed the effects of each landform and climatic factor on the plant species number, distribution structure, and diversity in different strata of Pinus yunnanensis forest. The DCCA ordination efficiency for the tree layer, shrub layer, and herb layer was very significant (P<0.01). The effects of environmental factors on the plant species diversity and distribution were in the order of mean precipitation in summer (from May to Sept. ) , annual temperature range, and mean annual precipitation for tree layer, mean precipitation in summer, mean annual precipitation, and frost-free days for shrub layer, and frost-free days, elevation, and mean precipitation in summer for herb layer. Human disturbances had great effects on shrub layer but little effects on tree and herb layers.关键词
云南松/群落结构/物种分布/地形/气候Key words
Pinus yunnanensis/ community structure/ species distribution/ landform/ climate.分类
生物科学引用本文复制引用
陈飞,王健敏,孙宝刚,陈晓鸣,杨子祥,段兆尧..云南松林不同层植物分布与地形、气候因子的关系[J].生态学杂志,2012,31(5):1070-1076,7.基金项目
国家林业局948项目(2009-4-37)和国家林业局林业公益性行业专项(200904052、200804001)资助. （2009-4-37）
