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地球学报  2006 

长白山北坡垂直植被带表土植硅体组合研究

DOI: 10.3975/cagsb.2006.02.12

Keywords: 植硅体,垂直植被带,地表土壤,长白山

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Abstract:

长白山垂直分布的植被是欧亚大陆从温带到寒带植被水平地带性的缩影。对其北坡不同海拔高度植被带土壤中的植硅体进行初次研究,结果发现,该山北坡海拔700m到2630m的土壤中发育了形态和数量丰富的植硅体。不同植被带植硅体组合的含量各不相同,主要特征表现为随海拔升高示冷型的植硅体含量整体呈上升趋势,而示暖型的植硅体含量整体呈下降趋势。温泉附近土壤中的植硅体则表现出明显的与其上下相邻地点不同的特点。它对中国东北第四纪沉积物中植硅体组合的研究及第四纪古植被和古环境的重建可提供重要的基础性资料。

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