干旱区生态环境知识资源中心(Arid): 人工封育区植物群落恢复演替系列种群生态位动态特征以宁夏盐池为例

Arid

	人工封育区植物群落恢复演替系列种群生态位动态特征以宁夏盐池为例
其他题名	Niche dynamics of main populations of plant communities in restoring succession process in enclosure region：A case study of Yanchi county,Ningxia
	沈彦; 张克斌; 杜林峰; 刘刚
ISSN	1672-2175
出版年	2007
卷号	16 期号:4 页码:1229-1234
中文摘要	为了解干旱半干旱区草原植物生态位格局,运用Levins生态宽度指数及Pianka生态位重叠指数,对宁夏盐池人工封育草原3种不同措施下的植物生态位宽度及生态位重叠进行计量。结果表明：茵陈蒿（Artemisia capillaries Thunb）和新疆猪毛菜（Salsola sinkiangensis A.J.Li）的生物、生态学特性决定了它在该区的优势地位,其生态位宽度远远高于其他物种,并且出现下降的趋势;生态位重叠结果均表明,生态位宽度大的物种不一定和其他物种有大的重叠值,较高的生态位宽度和较高的生态位重叠之间并不存在直接的线性关系;较高的Pianka生态位重叠值都出现在生态位宽度较小的物种之间。这一现象从另外一个角度说明植被恢复过程中环境资源存在着高度的空间异质性。
英文摘要	In order to find the vegetable niche pattern in arid and semi-arid grassland region,the niche breadth and niche overlapping in three different measures in Yanchi county of Nixia are measured by means of Levins niche breadth and Pianka niche overlapping indexes of enclosed grassland. The results showed that ,the biological and ecological characteristics of Artemisia capillaris Thunb and Salsola sinkiangensis A.J.Li determined its predominant station in this region ,and its niche breadth were bigger than other species,appear to descending trend. The results of niche overlapping also showed that the species with big niche breadth didnt always have big niche overlapping,and the niche breadth and niche overlapping did not have a positive direct linear relation. The higher Pianka niche overlapping both appeared in the species with low niche breadth,which showed from another point of view that environment and resources have high spatial heterogeneity during the vegetation restoration process.
中文关键词	封育 ; 草原 ; 生态位宽度 ; 生态位重叠 ; 盐池
英文关键词	enclosure glassland niche breadth niche overlapping Yanchi
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:2962584
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221308
作者单位	北京林业大学水土保持学院, 水土保持与荒漠化防治教育部重点实验室, 北京 100083, 中国
推荐引用方式 GB/T 7714	沈彦,张克斌,杜林峰,等. 人工封育区植物群落恢复演替系列种群生态位动态特征以宁夏盐池为例[J]. 北京林业大学,2007,16(4):1229-1234.
APA	沈彦,张克斌,杜林峰,&刘刚.(2007).人工封育区植物群落恢复演替系列种群生态位动态特征以宁夏盐池为例.,16(4),1229-1234.
MLA	沈彦,et al."人工封育区植物群落恢复演替系列种群生态位动态特征以宁夏盐池为例".16.4(2007):1229-1234.