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Position: Home > Articles > β Diversity of Plant Community in Artificial Fencing Area of Yanchi County in Ningxia Hui Autonomous Region Bulletin of Soil and Water Conservation 2014,34 (3) 257-261+299

宁夏盐池县人工封育区植物群落的β多样性

作  者:
郝智如;侯瑞萍;张克斌;王晓
单  位:
北京林业大学水土保持和荒漠化防治教育部重点实验室
关键词:
人工封育;β多样性;植物群落;测度
摘  要:
根据4个样地40个样方资料,应用二元属性数据和数量数据对宁夏盐池人工封育区植物群落的β多样性进行了测度。结果表明:(1)Cody指数(βC),以及由群落相似性指数Jaccard指数(Cj)和Sorenson指数(Cs)得到的多样性指数(βCJ和βCS),在反映群落随时间梯度变化方面趋于一致,较好地反映了不同生境梯度上群落的差异。(2)数量数据测度方法中,以相对盖度和重要值为指标的测度结果更为合理。(3)根据数量数据Morisita—Horn指数测度的结果,长期的封育不利于植物群落的演替,使群落更易受到环境的影响。
译  名:
β Diversity of Plant Community in Artificial Fencing Area of Yanchi County in Ningxia Hui Autonomous Region
作  者:
HAO Zhi-ru;HOU Rui-ping;ZHANG Ke-bin;WANG Xiao;Key Laboratory of Soil and Water Conservation and Desertification Combating,Beijing Forestry University;
关键词:
artificial fencing;;β diversity;;plant community;;measurement
摘  要:
Based on the data collected from 40plots in 4sampling areas,the β diversities of plant community in artificial fencing area in Yanchi County were measured by applying binary and numerical data.Results show that:(1)Cody index(βC),as well as βC Jand βCS derived from Jaccard and Sorenson similarity indexes(Cjand Cs),are able to reflect the community changes as the time gradient.(2)In the numerical data measure methods,to measure with the relative coverage and importance value as an index,the result is more reasonable.(3)According to the results of Morisita—Horn index for the numerical data,the long-term cultivating is not conducive to plant community succession,which makes the communities more vulnerable to environment impacts.

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