地理科学

地理科学 ›› 2001, Vol. 21 ›› Issue (4): 378-380.doi: 10.13249/j.cnki.sgs.2001.04.378

• 研究报道 • 上一篇    下一篇

神农架北坡表土常见花粉的R值研究

刘会平1, 唐晓春2, 王开发3, 潘安定1   

  1. 1. 广州大学地理系, 广东 广州 510405;
    2. 华南师范大学地理系, 广东 广州 510631;
    3. 同济大学海洋地质系, 上海 200092
  • 收稿日期:2001-03-01 修回日期:2001-04-02 出版日期:2001-07-20 发布日期:2001-07-20
  • 基金资助:
    国家自然科学基金项目(49971010)。

A Study on the Representation of Common Pollens in Soils on the Northern Slope of Shennongjia Mountains

LIU Hui-ping1, TANG Xiao-chun2, WANG Kai-fa3   

  1. 1. Department of Geography, Guangzhou University, Guangzhou, Guangdong 510405;
    2. South China Normal University, Department of geography, Guangdong Guangzhou 510631;
    3. Department of Marine Geology, Tongji University, Shanghai, 200092
  • Received:2001-03-01 Revised:2001-04-02 Online:2001-07-20 Published:2001-07-20

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摘要： 根据表土孢粉分析和植被样方调查的比较研究,获得了神农架北坡表土常见花粉的R值。常绿阔叶树花粉一般具有较低代表性,R值变化于0.70左右。绝大部分落叶阔叶树花粉也具有较低代表性,R值变化于0.68~0.88之间,但桦、桤木和槭却表现异常。针叶树有气囊花粉具有明显的超代表性,R值变化在1.35~2.44之间,松表现最为强烈。草本植物花粉的R值变化较大,代表性较差。影响R值的因素很多,植物的生态特性、花粉特征、花粉源距离、花粉产量、地形等作用尤为明显。

Abstract: The representation of common pollens in soils on the northern slope of Shennongjia mountains area is studied in the light of sporo-pollen analysis and plantation sample investigation.Most of broadleaved-tree pollens such as Quercus, Ilex, Fagus, Juglans,Castanea, Carpinus, Corylus, Ulmus, Tilia and Salix, have a under-representation except Betula and Alnus which have a suitable representation.Some main conifer-tree pollens such as Pinus, Abies and Picea, have a over-representation except Cupressaceae and Taxodiaceae which have a under-represeatation.The research shows that the representation of pollen is influenced from pollen character, external pollens, pollen output, distance from pollen sources and landform.

中图分类号: 

  • Q913.84