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安徽长江滩地农林复合系统草本植物群落特征研究
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摘要:
研究安徽长江外滩在实施农林复合经营后滩地草本植被的变化,主要涉及草本植物的多样性指数,群落特征分析及草本植物的生物量。结果表明:1m范围的高程差影响植物种类组成,其趋势表明滩地1m的高程差已成构成水分环境的变化;生物多样性指数,群落均匀度随高程增加而增加,但个体数及生态优势度则下降;间种促使生境趋向中生。
关键词:  生物多样性 群落特征 草本植物 长江滩地 农林复
DOI:
修订日期:2000-09-21
基金项目:国家科技攻关项目;;
The Characteristics of Herb Community in Agroforestry of Beach Land along Changjiang River of Anhui
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Abstract:
The paper dealed with the change of herb vegetation on beach land after the Agroforestry system was established.The major topics covered the biodiversity of herb species; analysis of community indices and biomass for herb vegetation on beach land. The results showed that 1 metre difference for elevation of beach land would influence its species composition since the water condition was changed. The species diversity and community evenness index enhanced with the increasing of elevation,but individuals and ecological dominance index decreased.
Key words:  biodiversity,community characteristics,herb vegetation,beach land,Changjiang

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