首页|放牧强度与主要植物种群及群落高度的对应分析

放牧强度与主要植物种群及群落高度的对应分析

扫码查看
原文链接
  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
  • 维普
为了探讨放牧强度对荒漠草原植物高度的影响,以植物种群及群落为研究对象,采用方差分析和对应分析方法研究不同放牧强度与草地主要植物种群及群落高度之间的相互关系.方差分析结果表明,短花针茅、冷蒿和无芒隐子草种群高度受不同放牧强度影响存在显著差异,而群落高度在不同放牧强度处理间差别不大.Q型因子分析结果表明,主要植物种群及群落高度的总体变化规律为:零放牧＞轻度放牧＞中度放牧＞重度放牧;R型因子分析结果显示,受各放牧强度综合影响,主要植物种群及群落高度的总体表现为植物群落＞短花针茅种群＞冷蒿种群＞无芒隐子草种群.对应分析结果表明,放牧强度增加会导致主要植物种群及群落高度下降,其中,短花针茅和群落高度变化对中度放牧和重度放牧响应敏感,冷蒿和无芒隐子草高度变化对零放牧和轻度放牧响应敏感.
Correspondence Analysis between Grazing Intensity and Height of Main Population and Community
In order to discuss the effects of grazing intensity on plant height in desert grassland, the interaction relationship between the grazing intensity and the plant height of main population and community was researched by studying the plant height of population and community through variance component analysis and correspondence analysis method.The results showed that there was significant difference in the population height of Stipa breviflora ,Artemisia frigida and Cleistogenes mutica between different grazing intensity, and no significant difference in the community height.The Q factor analysis results showed that the varying order of the plant height in different grazing intensity was no grazed ＞ lightly grazed ＞ moderately grazed ＞ heavily grazed.The R factor analysis results showed that the plant height order of populations and community was plant community ＞ Stipa breviflora ＞ Artemisia frigida ＞ Cleistogenes mutica.Correspondence analysis showed that increasing the grazing intensity could reduce the height of main plant populations and community.The plant height of Stipa breviflora populations and plant community had been more sensitive under heavily and moderately grazing intensity.The plant height of Artemisia frigida and Cleistogenes mutica populations had been sensitive under no and light grazing intensity.

grazing intensitydesert grasslandpopulation and communityplant heightcorrespondence analysis

殷国梅、吕世杰、丁海君、薛艳林、王海明、赵和平、刘永志

展开 >

内蒙古自治区农牧业科学院,内蒙古呼和浩特010031

内蒙古农业大学理学院,内蒙古呼和浩特010019

放牧强度 荒漠草原 种群及群落 植物高度 对应分析

内蒙古自治区人才开发基金内蒙古科技计划项目国家公益性行业(农业)科技专项国家牧草产业体系项目内蒙古应用技术研究与开发项目内蒙古自治区农牧业科学院青年基金

201303059CARS-35-27201302162014QNJJM04

2015

10.15933/j.cnki.1004-3268.2015.10.034

河南农业科学
河南省农业科学院

河南农业科学

CSTPCDCSCD北大核心
影响因子：0.787
ISSN：1004-3268
年,卷(期)：2015.44(10)
  • 2
  • 5