黄土丘陵区子午岭短柄五加群落特征分析

doi:10.7525/j.issn.1673-5102.2009.04.016

植物研究 ›› 2009, Vol. 29 ›› Issue (4): 475-480.doi: 10.7525/j.issn.1673-5102.2009.04.016

黄土丘陵区子午岭短柄五加群落特征分析

刘富顺¹;张希彪^1,2*;马世荣¹

(1.陇东学院生命科学系,庆阳745000) (2.中国科学院水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室，杨凌712100)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-07-20 发布日期:2009-07-20
通讯作者: 张希彪
基金资助:

Community Characteristics of Acanthopanax brachypus in Hilly Loess Regions

LIU Fu-Shun;ZHANG Xi-Biao;*;MA Shi-Rong

( 1.Longdong University Department of Life Sciencesy,Qingyang745000) (2.State Key Laboratory of Erosion and Dryland Forming on the Loess Plateau,Institute of Soil and Water Conservation,Chinese Academy of Science,Yangling712100)

Received:1900-01-01 Revised:1900-01-01 Online:2009-07-20 Published:2009-07-20
Contact: ZHANG Xi-Biao
Supported by:

摘要/Abstract

摘要： 采用样方法研究了子午岭短柄五加(Acanthopanax brachypus)群落的特征。结果表明：短柄五加群落具有典型的温带植物区系特点，其科属组成分散，种类成分简单，为自然演替和人工改造双重作用下的不稳定群落；群落物种丰富度指数和多样性指数变化趋势基本一致，生态优势度指数表现出相反的趋势；群落垂直结构明显，乔木层以油松、辽东栎和侧柏为主，灌木层中短柄五加占绝对优势，草本层以披针叶苔草为主，该群落可分为油松—短柄五加—披针叶苔草+三褶脉紫菀群丛、油松+辽东栎—短柄五加—披针叶苔草群丛、辽东栎—短柄五加—披针叶苔草群丛、侧柏—短柄五加+铁杆蒿—披针叶苔草群丛4个类型；短柄五加的分布主要受水热条件限制，在水热条件相对较好的地段及林缘长势较好。

关键词: 短柄五加, 群落特征, 子午岭, 黄土丘陵

Abstract: The characteristics of Acanthopanax brachypus community in Ziwu Mountain forest area were studied by the method of sampling. The results show that the seed plants flora of the A. brachypus community is of a temperate feature. The plant species is dispersed and simple. It is an instable community under natural and artificial impacts. The trend of indices of species diversity and abundance is in accordance. The indices of predominance are reverse. The vertical structure of A. brachypus community is clear. The tree layer is mainly composed of Pinus tabulaeformis, Quercus liaotungensis and Platycladus orientalis. The shrub layer takes A. brachypus as its domination The herb layer is mainly Carex rigescens. The communities of A. brachypus can be classified into 4 types: Ass.P. tabulaeformis—A. brachypus—C. rigescens Krecz.+Aster ageratoides, Ass.P. tabulaeformis+Q. liaotungensis—A. brachypus—C. rigescens, Ass. Q. liaotungensis—A. brachypus—C. rigescens, Ass. P. orientalis—A. brachypus+A. sacrorum—C. rigescens. The growth of A. brachypus is mainly influenced by water and temperature. Better growth is observed in the forest areas with better moisture and temperature conditions.

Key words: Acanthopanax brachypus, community characteristics, Ziwu Mountain, hillyloess region

中图分类号:

S718.55⁺3

刘富顺;张希彪;*;马世荣. 黄土丘陵区子午岭短柄五加群落特征分析[J]. 植物研究, 2009, 29(4): 475-480.

LIU Fu-Shun;ZHANG Xi-Biao;*;MA Shi-Rong. Community Characteristics of Acanthopanax brachypus in Hilly Loess Regions[J]. Bulletin of Botanical Research, 2009, 29(4): 475-480.

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黄土丘陵区子午岭短柄五加群落特征分析

Community Characteristics of Acanthopanax brachypus in Hilly Loess Regions

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