3种干扰方式下滇西北天然侧柏林植物多样性比较  

Comparison of Species Diversity of Platycladus orientalis Forests under Three Types of Disturbance

作　　者：孙鸿雁[1] 王娟[1] 杜凡[1] 黄礼梅[1] 

机构地区：[1]西南林学院资源学院,云南昆明650224

出　　处：《西南林学院学报》2006年第2期1-5,共5页Journal of Southwest Forestry College

基　　金：福特基金资助项目(1025-1020);国家重点基础研究发展计划(973)资助项目(2003CB415100)

摘　　要：运用民族植物学和生态学的调查方法,对滇西北德钦县阿东村的天然侧柏林植物多样性进行了调查.结果表明:对于灌木、草本层物种数,中、重度干扰样地多样性指数、均匀度指数均较对照样地大,但从增加和减少的物种来看,多为次生阳性广布植物,缺乏中国特有属种,增加的物种对侧柏群落的相对稳定起不到实质性的作用.The influence of human - caused disturbance on plant diversity of natural Platycladus orientalis forests was studied based on field etho - botanical and ecological survey in Adong village Northwest of Yunnan Province. The results indicated that the diversity and evenness index in , Deqin County in the shrub and herb layers inmoderately and heavily disturbed plots were larger than those of slightly disturbed plots. While the analyses on the species either increased or decreased in the disturbed plots showed that the major species increased in the moderately and heavily disturbed plots were secondary, heliophilous and wide - distributive ones, but lacking of peculiar species in China. And the increased species did not contribute substantially to keep relative steadiness in Platycladus orientalis communities.

关 键 词：侧柏 天然林 人为干扰 植物多样性 滇西北 

分 类 号：S791.380.2[农业科学—林木遗传育种]