地理科学

地理科学 ›› 1986, Vol. 6 ›› Issue (3): 212-221.doi: 10.13249/j.cnki.sgs.1986.03.212

• 论文 • 上一篇    下一篇

黄河中游悬浮物理化特征的地域性差异分析

金相灿   

  1. 中国环境科学研究院, 北京
  • 出版日期:1986-05-20 发布日期:1986-05-20

ANALYSIS OF REGIONAL DIFFERENTIATION IN PHYSICAL AND CHEMICAL NATURE OF THE SUSPENDED SUBSTANCE IN THE MID-REACHES OF THE YELLOW RIVER

Jin Xiangchan   

  1. Chinese Research Academy of Environmental Sciences, Beijing
  • Online:1986-05-20 Published:1986-05-20

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摘要： 文章讨论了黄河中游悬浮物的主要理化性质,结果发现黄河干流悬浮物中蒙脱石含量相对高,粒级比较粗,有机质含量比较低下,阳离子代换量相应也少,相反支流汾谓河悬浮物中伊利石较高,粒级较细,有机质含量相对高,阳离子代换量也相应高。系统分析表明上述悬浮物的理化性质和流域土壤的理化性质相近,流域黄土和土壤理化性质的地域性差异支配着河流悬浮物理化特征的地域性差异。

Abstract: The main physical and chemical nature of the suspended substance, compositions of clay soil menesal in the mid-reaches of the Yellow River were analysed and the region a 1 differentiations were studied in this paper.The results show that the contents of suspended substance were higher,silt diameter was more coarse,for the main river,but the contents of organic matter of suspended sub-stance were lower,therefore,the capacity of cation exchange was smaller for the the tributaries,for extance in the Fenhe River and Weihe River.The chemical components of suspended substance are similar to that of loess parent material in this area, according to analysis of regional soil and chemical component of silt, therefore the author suggests that suspended substance for each profile mainly came from loess area of the reaches of the Yellow River and the regional differentiations have determined the physical and chemical nature of suspended substance.