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BULLETIN OF BOTANICAL RESEARCH
19 2 1999 4
Vol.19 No.2 April, 1999
丛沛桐 颜廷芬 周福军 刘兴华 祖元刚
(, 150040)
本文通过对东北羊草草原不同羊草群落内各种群间生态位重叠关系的研
究, 揭示出羊草群落各种群对不同 境资源的利用能力及对生态因子的适应能力和
占据空间的能力。定量化地描述了种群间的共存关系和竞争机制, 通过生态位再现
了羊草群落现有分布格局及各种群对有限 境资源的利用, 提出了羊草草原草场改
良的合理化建议。
种群;生态位;重叠
THE STUDY ON ECOLOGICAL NICHE
OVERLAP RELATIONS OF SEVERAL POPULATIONS ON
LE YM US COMMUNITY IN NORTHEAST PLAIN
Cong Pei-tong an Ting-fen Zhou Fu-jun Liu Xing-hua Zu uan-gang
(Open Research Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040)
Abstract In this article, ecological niche overlap of several populations of different
leymus communities in Northeast leymus plain was studied and revealed utilization ca-
pability of several populations of different leymus communities on environmental re-
sources and adaptability, spatial position capability on ecological factors.There are
some numerical describes about species concurrent and competitive strategy of several
populations.The research result reappeared current distribution structure and finitude
environmental utilization of several populations by ecological niche and put forward ra-
tionalization proposal of improvement leymus plain.
Key words Population;Ecological niche;Overlap
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214 19
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Tab e 1 Primary p ant popu ation and community in Leymus chinensis steppe and envi-
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