干旱区生态环境知识资源中心(Arid): 春季休牧后放牧强度变化对短花针茅草原植物种群种间关系的影响

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	春季休牧后放牧强度变化对短花针茅草原植物种群种间关系的影响
其他题名	Effect of Grazing Intensity Changes on Population Inter-specific Relationship of Stipa breviflora Steppe after Banning in Spring
	吕世杰 1; 吴艳玲 2; 刘红梅 3; 卫智军4
来源期刊	草地学报
ISSN	1007-0435
出版年	2016
卷号	24 期号:2 页码:302-308
中文摘要	为探讨春季休牧后放牧对短花针茅(Stipa breviflora)草原植物种群种间关系的影响,于2013年8月对苏尼特右旗荒漠草原进行调查研究,试验设2种放牧方式,分别为春季休牧+夏季重牧+秋季适牧(SA1)和春季休牧+夏季适牧+秋季重牧(SA2),分析物种数、物种频度差异,种对关联及群落总体关联性,得到如下结果:春季休牧较对照(全年禁牧)能够显著增加单位面积的物种数,且SA1>SA2;不同植物种群出现频率对春季休牧后不同放牧方式的响应存在显著差异(P<0.05)。春季休牧后,主要植物种群短花针茅和无芒隐子草(Cleistogenes songorica)主要表现为无关联性,短花针茅与碱韭(Allium polyrhizum)主要表现为负关联性。无芒隐子草和碱韭受春季休牧影响,种间关联由对照处理的正关联转为负关联,且负关联程度SA1较SA2强。春季休牧后,无论放牧强度变化如何,正关联种总数较对照均减少,但物种总体种间亲和作用增加。
英文摘要	The paper set up 2kinds of grazing intensities,banning grazing in Spring+ heavy grazing in Summer+ moderate grazing in Autumn(SA1)and banning grazing in Spring+ moderate grazing in Summer+ heavy grazing in Autumn(SA2)in Sonid Youqi Inner Mongolia in August 2013.In order to explore the impact of changes in grazing intensity after banning grazing on population interspecific relationship in Stipa breviflora desert steppe,species numbers,differences in species frequency,species association,and overall community association were analyzed.The results showed that compared with the control area(banning grazing all years),banning grazing in Spring can significantly increase the species numbers of per unit area and the species number of SA1was bigger than SA2.There was significant difference among grazing treatments on plant populations frequency(P<0.05).Stipa brevifloraand Cleistogenes songorica showed no relevance while Stipa brevifloraand Allium polyrhizumshowed negative correlation after banning grazing in Spring.By banning grazing In Spring,the relationship between Cleistogenes songorica and Allium polyrhizum could turned the positive association appeared in control area into a negative association and the transition of SA2was stronger than SA1.Banning grazing in the spring caused a decreased positive species correlation.However,the overall species affinity interaction increased no matter how grazing intensity changed.
中文关键词	休牧 ; 放牧强度 ; 短花针茅草原 ; 种间关联
英文关键词	Banning Grazing intensity Stipa breviflora steppe Inter-specific association
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5742847
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233949
作者单位	1.内蒙古农业大学理学院, 呼和浩特, 内蒙古 010018, 中国; 2.内蒙古师范大学生命科学与技术学院, 呼和浩特, 内蒙古 010022, 中国; 3.内蒙古自治区林业科学研究院, 呼和浩特, 内蒙古 010010, 中国; 4.内蒙古农业大学生态环境学院, 呼和浩特, 内蒙古 010019, 中国
推荐引用方式 GB/T 7714	吕世杰,吴艳玲,刘红梅,等. 春季休牧后放牧强度变化对短花针茅草原植物种群种间关系的影响[J]. 内蒙古农业大学,2016,24(2):302-308.
APA	吕世杰,吴艳玲,刘红梅,&卫智军.(2016).春季休牧后放牧强度变化对短花针茅草原植物种群种间关系的影响.草地学报,24(2),302-308.
MLA	吕世杰,et al."春季休牧后放牧强度变化对短花针茅草原植物种群种间关系的影响".草地学报 24.2(2016):302-308.