满洲里草原锥叶柴胡生态现状调查  

Ecological Situation Investigation of Bupleurum bicaule Helm in Manchuria Meadow Steppe

作　　者：王长宝[1] 赵财[2] 杨洪升[1] 蔡可心[1] 谢晓东[1] 李霞[1] 

机构地区：[1]佳木斯大学生命科学学院,佳木斯黑龙江154007 [2]贵州大学生命科学学院,贵州贵阳550025

出　　处：《安徽农业科学》2015年第34期4-5,17,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(81441132);黑龙江省教育厅科技项目(12541808);佳木斯大学青年基金项目(2013-026)

摘　　要：[目的]为了解筑路、城镇化扩展及放牧等人为活动对锥叶柴胡的干扰及其生态现状。[方法]在3个干扰程度不同的样地,设置6个2 m×2 m样方,统计锥叶柴胡及伴生物种的株数、盖度和高度,并且计算每种植物的密度。[结果]锥叶柴胡在种群数量、盖度、高度及密度方面低于30种伴生植物中的绝大多数。[结论]锥叶柴胡种群较小,通常不会发展成群落的优势种。人为直接干扰的样方中以大籽蒿、猪毛蒿等伴生植物为优势种。动物啃食、践踏干扰抑制锥叶柴胡的生殖生长和产生实生苗的几率。[Objective]The research aimed to better understand the impacts of road construction,urban expansion and grazing of Bupleurum bicaule and its ecological situation.[Method]Six plots in three kind of sample areas were investigated to calculate the number,coverage,height and density of B. bicaule and its companion species.[Result] The population size,coverage,height and density of B. bicaule were less than those of most companion species.[Conclusion] B. bicaule is＇ t a dominant species in a community for the reason of small population. Species such as Artemisia sieversiana and A. scoparia develop into dominant species in human-caused disturbance quadrat. Grazing and trampling might inhibit reproduce growth and reduce the seedlings rate of B. bicaule.

关 键 词：锥叶柴胡 干扰 生态现状 

分 类 号：S184[农业科学—农业基础科学]