干旱区生态环境知识资源中心(Arid): 毛乌素沙漠边缘荒漠植物群落生态位特征研究

Arid

	毛乌素沙漠边缘荒漠植物群落生态位特征研究
其他题名	Study on niche characteristics of desert plant community in marginal zone of Muus Desert
	刘锦霞 1; 武高林 2; 马涛 1
ISSN	1001-0629
出版年	2007
卷号	24 期号:12 页码:9-14
中文摘要	生态位是种群在群落中的地位和作用的数量表达，能够较好地解释群落演替过程种群的环境适应性和资源利用能力。本文采用Levins生态位宽度和Petraiti生态位重叠公式，以毛乌素沙漠边缘的4种荒漠演替群落为研究对象，研究了不同群落种群间的生态位特征。结果表明：演替过程中每一群落类型优势种的作用非常明显，具有最大的生态位宽度。生态位宽度与演替序列的变化较好地对应了种群动态。随着演替序列的变化种群间的生态位重叠也依次升高，同时表明了宁夏中北部荒漠群落结构的不稳定性。
英文摘要	Niche is an indirect measurement for population dynamics and also explains community succession process along with environment and utilization of resource. In this paper, characteristics of niche of four types of desert community were studied using Levins and Petraitis methods. The results showed that there were obvious successional stages and that each stage was marked by a typical community, which was dominated absolutely by one species with the largest niche breadth in the community. The changes of niche breadths in the succession series properly reflected the population dynamics. Niche overlapping increased with successional stage; it also refleeted community structure instability.
中文关键词	优势种群 ; 生态位宽度 ; 生态位重叠
英文关键词	dominant population niche breadth niche overlap
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:3060852
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220724
作者单位	1.宁夏环境科学设计研究院, 银川, 宁夏 750004, 中国; 2.兰州大学, 干旱与草地生态教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	刘锦霞,武高林,马涛. 毛乌素沙漠边缘荒漠植物群落生态位特征研究[J]. 兰州大学,2007,24(12):9-14.
APA	刘锦霞,武高林,&马涛.(2007).毛乌素沙漠边缘荒漠植物群落生态位特征研究.,24(12),9-14.
MLA	刘锦霞,et al."毛乌素沙漠边缘荒漠植物群落生态位特征研究".24.12(2007):9-14.