四川林业科技2011,Vol.32Issue(5):20-28,9.
川中丘陵区不同类型柏木林地植物群落结构和多样性研究
A Study of the Vegetation Community Structure and Biodiversity of Different Cupressus funebris Types in Hilly areas of Central Sichuan Province
摘要
Abstract
In order to understand the forest community status and structural feature of Cupressus funebris which was the most common specie in the central hilly areas of Sichuan Province, through Smipson index and Shannon-wienner index and Pielou index researches were conducted on different Cupressus funebris types in the paper. The result showed as follows : ( 1 ) In terms of layers, the forest communities could forest land be divided into arbor, shrub and grass layers, and the forest layers were simple. There were 7 families,7 genera, and 11 species in arbor layers ; 29 families, 39 genera, and 60 species in shrub layer; 35 families,57 genera,and 72 species in grass layer. (2) Each forest type had its own dominant or sub-dominant species, but they were quite variable. (3) In terms of species distribution, the species in community, shrub and grass layers generally conformed to the frequency distribution law, and belonged to L shape. That is, A class of low frequency was actually dominant; hut species frequency varied in forest layers. (4) Shannon-Wiener index, richness index and ecological dominance index were higher in shrub and grass layers than those in arbor layers. Highly significant differences were found in arbor-shrub layer, and arborgrass layer.关键词
植被特征/种群结构/物种多样性分类
农业科技引用本文复制引用
郑绍伟,牛牧,张琴,黎燕琼,慕长龙,龚固堂,陈俊华,朱志芳,吴雪仙..川中丘陵区不同类型柏木林地植物群落结构和多样性研究[J].四川林业科技,2011,32(5):20-28,9.基金项目
基金项目:林业公益性科研专项“川中丘陵区人工柏木林健康经营技术” ()