放牧方式对中蒙典型草原植物功能群特征的影响

doi:10.7525/j.issn.1673-5102.2013.02.007

植物研究 ›› 2013, Vol. 33 ›› Issue (2): 159-165.doi: 10.7525/j.issn.1673-5102.2013.02.007

放牧方式对中蒙典型草原植物功能群特征的影响

包秀霞¹；易津²；廉勇³；晓霞⁴；包秀平⁵

1.呼和浩特民族学院环境工程系，呼和浩特　010051；2.内蒙古农业大学农学院，呼和浩特　010018；3.内蒙古农牧业科学院蔬菜所，呼和浩特　010031；4.舍伯吐镇中心校，通辽　029322；5.江西广播电视艺术幼儿园，南昌　330046

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-03-20 发布日期:2013-03-20
基金资助:

Effect of Grazing on Plant Functional Group Characteristics in stipaSteppe between China and Mongolia

BAO Xiu-Xia;YI Jin;LIAN Yong;XIAO Xia;BAO Xiu-Ping

1.Department of Environmental Engineering,Huhhot Nationality College,Huhhot　010051；2.College of Agriculture,Inner Mongolia Agricultural University,Huhhot　010018；3.Institute of Vegetables,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Huhhot　010031；4.Central School of She Bai Tu Town,Tongliao　029322；5.Radio and Television Arts Kindergarten in JiangXi,Nanchang　330046

Received:1900-01-01 Revised:1900-01-01 Online:2013-03-20 Published:2013-03-20
Supported by:

摘要/Abstract

摘要： 基于中蒙典型草原不同放牧方式，研究了不同放牧方式下中蒙典型草原植物功能群特征。结果显示，内蒙古定居放牧样地多年生草本比例显著低于其它放牧样地，比例为57.576%；而旱生植物比例显著高于其它放牧样地，比例为69.697%。蒙古四季游牧样地功能群多样性指数和优势度指数均高于内蒙古放牧样地，均匀度指数与多样性指数相反。功能群多样性指数与优势度指数间呈显著正相关（r＞0.855，P＜0.05）；均匀度与多样性指数、优势度指数间均呈负相关。多年生和一年生草本植物、旱生和中旱生植物的生态位宽度均较大，从而导致多年生与一年生植物间、旱生与中旱生植物间生态位重叠值相应较大。说明，不合理的放牧导致草原植被群落退化，降低草原生态经济价值。

关键词: 典型草原, 放牧方式, 功能群多样性, 功能群生态位

Abstract: In our study, the plant functional characteristics in Chinese and Mongolian typical steppe under different grazing methods were investigated. The results showed that the proportion of perennial under settled grazing (SG) was significant lower than the others, the ratio is 57.576%, while the proportion of xerophytes was significantly higher than the others, the ratio is 69.697%. The diversity of functional groups showed that Shannon-wiener and Simpson index at four season nomadic grazing (FSNG) were higher than the others, while Pielou was contrary to diversity index. Correlative analysis of functional groups diversity showed that there was a significantly positive correlation between Shannon-wiener and Simpson index, while negative correlation between Pielou and diversity index. Niche breaths between perennial and annual plants, xerophytes and intermediate xerads were higher, it affected niche overlap. It showed irrational grazing led to degradation of vegetation, which was clearly found to be of lesser economic and ecological value.

Key words: typical grassland, grazing method, functional group diversity, functional group niche

中图分类号:

S342.3

包秀霞;易津;廉勇;晓霞;包秀平. 放牧方式对中蒙典型草原植物功能群特征的影响[J]. 植物研究, 2013, 33(2): 159-165.

BAO Xiu-Xia;YI Jin;LIAN Yong;XIAO Xia;BAO Xiu-Ping. Effect of Grazing on Plant Functional Group Characteristics in stipaSteppe between China and Mongolia[J]. Bulletin of Botanical Research, 2013, 33(2): 159-165.

放牧方式对中蒙典型草原植物功能群特征的影响

Effect of Grazing on Plant Functional Group Characteristics in stipaSteppe between China and Mongolia

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