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当前位置: 首页 > 文章 > 荒漠化草原人工封育区植物生态位研究——以宁夏盐池为例 水土保持研究 2006,13 (2) 213-216+252
Position: Home > Articles > The Studies on Vegetable Niche of Prohibited Grassland in Desertification Region——Taking Yanchi County, Ningxia Hui Autonomous as an Example Research of Soil and Water Conservation 2006,13 (2) 213-216+252

荒漠化草原人工封育区植物生态位研究——以宁夏盐池为例

作  者：
李瑞;张克斌;杨晓晖;杨俊杰;乔峰
单  位：
北京林业大学水保学院;中国林科院林研所
关键词：
盐池;封育区;生态位宽度;生态位重叠
摘  要：
运用L ev ins生态宽度指数及P ianka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2002年封育区的优势种;2003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2002年与2003年均未出现在优势种之间,2002年出现在赖草与叉枝鸦葱、新疆猪毛菜与志远之间;2003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。
译  名：
The Studies on Vegetable Niche of Prohibited Grassland in Desertification Region——Taking Yanchi County, Ningxia Hui Autonomous as an Example
作  者：
LI Rui~1,ZHANG Ke-bin~1,YANG Xiao-hui~2,YANG Jun-jie~1,QIAO feng~1 (1.College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China;2.Research Institute of Forest,Chinese Academy of Forestry,Beijing 100091,China)
关键词：
Yanchi;closing region;niche breadth;niche overlapping
摘  要：
The niche breadth and niche overlapping in desertification grassland region prohibited in Yanchi county,Ningxia Hui Autonomous were measured in 2002 and 2003 by means of using Levins(1968) niche breadth and Pianka niche overlapping indexes.The results show 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.The biggest niche overlapping did not appear among dominant species.In 2002,the biggest niche overlapping appeared among L.secalinus and Scorzonera divaricata,Salsola sinkiangensis A.J.Li and Polygala tenuiplia.In 2003,the biggest niche overlapping appeared among Oxytropis pasmmocharis and Corispermum heptapotamicum Iljin,Oxytropis pasmmocharis and Gueldenstaedtia stenophylla Bge etc.

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