湖南生态科学学报2016，Vol.3Issue(3)：7-11,5.
衡阳紫色土丘陵坡地植被恢复对植物群落结构及多样性的影响
Effects of Re-vegetation on Species Diversity and Structure of Plant Community in Purple Soils on Sloping-land in Hengyang
摘要
Abstract
The re-vegetation stages were classified into successive early stage,middle stage and later stage by using an approach of spatial sequence instead of temporal sequence, and the plant community characteristics and bio-diversity index in each plot were measured.The results showed that: (1) In the process of succession, the total aboveground and middle-xerophyte biomass significantly increased ( P<0. 05) ,that of mesophyte were followed the order as middle stage>later stage>early stage( P<0.05) ,and that of xerophyte were followed the order as middle stage>early stage>later stage(P<0.05); (2)In the process of succession,Shannon-wiener diversity index( H) ,Simpson diversity index( H′) ,Pielou evenness index(E),Simpson evenness index(E′) and Simpson dominant index(D) significantly decreased(P<0. 05),the richness index was followed the order as middle stage>early stage>later stage(P<0.05);(3) The important values of dominant species such as Setaria viridis and Cynodon dactylon significantly in-creased in the process of succession(P<0.05).1fig.,3tabs.,23refs.关键词
演替/群落特征/生物多样性Key words
successive/community characteristics/bio-diversity分类
生物科学引用本文复制引用
旷一明,桂德志,张卫国,东新..衡阳紫色土丘陵坡地植被恢复对植物群落结构及多样性的影响[J].湖南生态科学学报,2016,3(3):7-11,5.基金项目
国家“十五”农业科技重大专项资助(编号:2001BA507A) （编号:2001BA507A）
