地理研究

地理研究 ›› 1989, Vol. 8 ›› Issue (4): 96-105.doi: 10.11821/yj1989040012

• 研究报告 • 上一篇    下一篇

黄河悬浮物组成的地理分异

屈翠辉1, 严润娥2   

  1. 1. 中国科学院国家计划委员会地理研究所;
    2. 北京大学地理系
  • 出版日期:1989-12-15 发布日期:1989-12-15
  • 基金资助:
    地理研究所所长基金

GEOGRAPHIC VARIATIONS OF THE COMPOSITIONS OF SUSPENDED MATTER IN THE YELLOW RIVER

Qu Cuihui1, Yan Rune2   

  1. 1. Institute of Geography, Chinese Academy of Sciences and State Planning Commission of the People's Republic of China;
    2. Department of Geography, Beijing University
  • Online:1989-12-15 Published:1989-12-15

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摘要： 根据对1980年汛期在黄河18个水文站采集样品的分析结果,本文讨论了黄河悬浮物的粒度、矿物和化学组成从上游到下游的地理分异。

关键词: 悬浮物, 黄河, 化学地理

Abstract: Huanghe is located in semidry and semi-humid areas and temperate climate zone.The soil formation processes have been disturbed by extremely serious soil erosion.The compositions of suspended matter in the Huanghe (Yellow River) were controlled by physical weathering.This was indicated by the following observations.1) Most of the suspended matter,no matter from upper,middle or lower reaches,was products of physical breakdown of existing crystals,such as quartz,feldspar,mica and chlorite,2) The differences in grain size distribution between the suspended matter in middle reach and loess may be only due to deposition of coarse particles during transport by water,3) Correspondingly,the quartz content,which makes up the major part of coarse particles,is lower than that in loess,and the contents of feldspar and mica are higher.

Key words: suspendel matter, yellow River, chemical geography