干旱区生态环境知识资源中心(Arid): 宁夏盐池荒漠化草原人工封育区生态位研究

Arid

	宁夏盐池荒漠化草原人工封育区生态位研究
其他题名	The Study on Niche in Desert Grassland Region Fenced in Yanchi County, Ningxia Hui Autonomous Rgeion
	李瑞; 张克斌; 杨俊杰; 乔峰
ISSN	1003-7578
出版年	2006
卷号	20 期号:4 页码:171-175
中文摘要	运用Levins生态宽度指数及Pianka生态位重叠指数对宁夏盐池荒漠草原人工封育区2002年及2003年生态位宽度及生态位重叠进行计量.结果表明：2002年封育区茵陈蒿、狗尾草生态位宽度值最大,分别为0.758、0.505,是02年封育区的优势种;03年封育区的优势种是茵陈蒿、狗尾草、老瓜头、苦豆子,其生态位宽度值分别为0.868、0.567、0.563、0.552.最大生态位重叠值02年与03年均未出现在优势种之间,02年出现在赖草与叉枝鸦葱、新疆猪毛菜与志远之间;03年出现在沙珍棘豆与中亚虫实、沙珍棘豆与狭叶米口袋、中亚虫实与狭叶米口袋之间.
英文摘要	The niche breadth and niche overlapping in desert grassland region fenced in Yanchi County, Ningxia Hui Autonomous Region were measured in 2002 and 2003 by mean of using Levins （1968） niche breadth and Pianka niche overlapping indexes. The results showed as follow： the niche breadth of Artemisia capillaries and Setaria viridis were bigger than other species in the region in 2002. In 2003, the dominant species were Artemisia capillaries, Setaria viridis and Cynanchum komarovii etc.. Their - niche breadth indexes were 0. 868, 0. 567, and 0. 563 respectively. The biggest niche overlapping did not appear among dominant species. In 2002, the biggest niche overlapping appeared among L. secalinus and Scorzonera divarica ta , Salsola sinkiangensis A. J. Li and Polygala tenuiplia. In 2003, the biggest niche overlapping appeared among Oxytropis pasmmocharis and Corispermurn heptapotamicum Iljin, Oxytropis pasmmocharis and Gueldenstaedtia stenophylla Bge etc..
中文关键词	盐池 ; 封育区 ; 生态位宽度 ; 生态位重叠
英文关键词	Yanchi fenced region niche breadth niche overlapping
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:2468473
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/2XILL650/219802
作者单位	北京林业大学水保学院, 北京 100083, 中国
推荐引用方式 GB/T 7714	李瑞,张克斌,杨俊杰,等. 宁夏盐池荒漠化草原人工封育区生态位研究[J]. 北京林业大学,2006,20(4):171-175.
APA	李瑞,张克斌,杨俊杰,&乔峰.(2006).宁夏盐池荒漠化草原人工封育区生态位研究.,20(4),171-175.
MLA	李瑞,et al."宁夏盐池荒漠化草原人工封育区生态位研究".20.4(2006):171-175.