地理学报

地理学报 ›› 1985, Vol. 40 ›› Issue (4): 293-306.doi: 10.11821/xb198504001

• 论文 •    下一篇

长江三峡黄陵背斜区产沙特性与数量计算

林承坤   

  1. 南京大学地理系
  • 出版日期:1985-10-15 发布日期:1985-10-15

THE CHARACTERISTICS AND THE QUANTITY OF SEDIMENT YIELD ON THE HUANGLING AMTICLINAL REGION IN THE YANGTZE GORGES

Lin Chengkun   

  1. Department of Geography, Nanjing University
  • Online:1985-10-15 Published:1985-10-15

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被引次数

6

摘要： 黄陵背斜位于长江三峡东部,面积为5850km2。本区除香溪有悬沙测验资料外,其它河流与溪沟都没有泥沙测验资料。为了解本区产沙特性与计算区域的产沙量:首先,根据本区自然地理条件的差异,将本区划分为若干个产沙区;

关键词: 产沙区, 黄陵背斜, 产沙量, 产沙模数, 产沙特性, 岩矿分析法, 补给区, 风化壳, 泥沙, 宜昌站

Abstract: The Huangling Anticlinal Region lies in east Three Gorges of the Yangtze River. According to different physiographic factors, the auther divides the Huangling Anticline into five sediment yield zones : I. zone of complex, II. zone of plagioclastic granite, III. zone of quartz diorite, IV. zone of limestone, V. zone of sandstone and limestone.In this paper, the author based on the data observed on the modulus of sediment yield at nine typical small watersheds (0.8- 553.5 km2) in the Huangline Anticline Region, analyzed the different physiographic factors such as thickness of weathering crust.