西北林学院学报2017，Vol.32Issue(6)：87-95,9.DOI:10.3969/j.issn.1001-7461.2017.06.13
不同人为干预方式对子午岭植物群落组成及多样性的影响
Effects of Human Intervention on the Composition and Diversity of Plant Comunity in Ziwuling Area
摘要
Abstract
Four types of vegetation community were selected as research objects from three forest stands,i.e.,natural secondary forest,artificial near-natural restoration forest,and plantation occurring in Ziwuling (Meridian Ridge of Loess Hilly) area.The influence of different human intervention measures to the changes of vegetation community composition and species diversity were studied.The results showed that 1) the species composition of plant community in this area was mainly of single species,and there was no obvious tendency of species distribution,and the distribution of species composition was relatively diverse.2) The quantity proportion of different vegetation types (arbor,bush,and grass) in the study area was equivalent,the key constructive species were Pinus tabuliformis of Pinaceae,Quercus wutaishanica of Fagaceae,from which the vegetation communities were constructed with other plants,such as Carex lanceolata of Cyperaceae,Tripolium vulgare of Compositae,Spiraea pubescens and Rosa xanthina of Rosaceae.3) Different human interventions demonstrated significant differences on species diversity.The community diversity for natural secondary forest and near-natural control restoration forest with less intervention was mixed forest ＞pure forest,broadleaf forest＞coniferous forest.The species diversity of the plantation with intensive intervention showed the characteristics of pure forest＞mixed forest.4) The influence of human intervention on different community layers was different.With the increase of human intervention intensity,the species richness,Shannon-wienner index and Pielou index of arbor layer decreased,while the herbaceous layer showed the opposite characteristics,and the human intervention had relatively little effect on the shrub layer and had no obvious consistency.关键词
子午岭/天然次生林/近自然改造/人工林/人为干预/物种多样性Key words
Ziwuling forest/natural secondary forest/near-natural control restoration/plantation/artificial intervention/species diversity分类
农业科技引用本文复制引用
何志华,朱岩峰,邱雅林,徐丽恒..不同人为干预方式对子午岭植物群落组成及多样性的影响[J].西北林学院学报,2017,32(6):87-95,9.基金项目
甘肃省科技支撑计划项目(0804NKCM072). （0804NKCM072）
