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Cyanobacteria diversity in biological soil crusts from different erosion regions on
Authors
明姣
杨丽娜
王爱国
赵允格
Publication date
1 January 2013
Publisher
Abstract
蓝藻是生物土壤结皮的重要组成部分,具有许多重要的生态功能。迄今为止,黄土高原地区生物结皮中藻类的种类组成及分布鲜有报道。通过野外调查、采样和室内观察、培养、鉴定,对黄土高原水蚀区、水蚀风蚀交错区、风蚀区的生物结皮中蓝藻的多样性及优势种进行了研究。结果表明,黄土高原3个侵蚀类型区生物结皮中蓝藻门植物共发现4科10属54种,其中丝状种类约占87%,占绝对优势;Shannon-Weiner多样性指数水蚀风蚀交错区最高,水蚀区次之,风蚀区最低,依次为2.22,2.20和2.14。水蚀风蚀交错区和水蚀区蓝藻多样性指数差异不显著,但均与风蚀区差异显著。3个侵蚀类型区的生物结皮中蓝藻的种类组成及优势种均有所差异,但均以颤藻科(Oscillatoriaceae)为优势科。水蚀风蚀交错区蓝藻种类最多(39种),以阿氏鞘丝藻(Lyngbya allorgei)为第一优势种;水蚀区次之(26种),以含钙席藻(Phormidium calciola)为第一优势种;风蚀区最少(20种),以颗粒颤藻(Oscillatoria granulata)为第一优势种。黄土高原不同侵蚀类型区生物结皮中蓝藻的多样性差异可能与... 更多还原</span
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018