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作 者 ：杨振京, 许清海, 孟令尧, 阳小兰, 王开发

期 刊 ：植物生态学报 2003年 27卷 6期 页码：804-810

关键词：表土孢粉；植物群落；值；燕山地区；

Keywords:Soil surface pollen, Plant community, R value, Yanshan area,

摘 要 ：

根据表土花粉分析和植被样方调查，燕山地区各植被带的表土孢粉组合在总体面貌上代表了植被组成，但孢粉组合不等于植被组成，而影响其差异的原因是孢粉保存、孢粉产量、外来孢粉和孢粉鉴定。表土花粉的代表性因种属不同而差异颇大，乔木植物花粉中松(Pinus)、桦(Betula)、胡桃

Abstract:

This study explored the quantitative relationship between pollen in the surface soil and vegetation in the Yanshan area. Data were collected from the region between about 39°00′-40°50′ N and between 117°10′-119°50′ E from 2 082 m elevation in the

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