IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
长江正源研究
Language中文
孙广友; 邓伟; 邵庆春; 华润葵; 唐邦兴; 浦健辰
Source Publication长江河源区自然环境研究
Editor孙广友 ; 唐邦兴 主编
Pages1-20
1995
Publisher科学出版社
Publication Place北京市
Keyword长江正源 主导指标 综合分析 沱沱河 当曲
Abstract

根据主导指标与综合分析相结合的原则,从河流长度对比、流域面积与流量对比,及其他因素对比进行综合分析,表明当曲在河长、流量和流域面积三个指标中均占优势甚至绝对优势;而沱沱河只有流域走和河源地势高度这种非主导指标上占有优势。据此,确定了当曲为长江正源,长期以来把沱沱河做为长江正源是缺乏科学依据的。
以当曲为长江正源重新订正长江的长度,当曲长为353.1km,而通天河以下仍采用原来数据,则长江全长为6280km,仍占第世界第三位。

Other Abstract  The Chinese people began to research on the main source of the Changjiang(Yangtze) River 2400 years ago.Limited by the scientific level,they did not discover it.
    The Tuotuo River was determined as the main source of the Changjiang River in the 1970s.However,this was not correct,because the glacier length in the front of headwaters Was added to the Tuotuo River,thus the Tuotuo River is 1 km Ionger than the Dam River,keeping in mind that the glacier can not be regarded as part of the river,when comparing the length of the Tuoyuo River with the Dam River.
    In the summer of 1986,we investigated the source of the Changjiang River,and accurately measured the length of both the Tuotuo and Dam rivers,We discovered that the Dam River was 353.1km long,and the Tuotuo River was 346.3km long.The Dam River is 6.8km longer than the Tuotuo River.The discharge of the Dam River is 196.18m3/s,and 2.6 times as large as the Tuotuo River(the Tuotuo River is 75.10m3/s).The drainage area of the Dam River is 1.8 times as length as the Tuotuo River:the drainage area of the Dam River is 30 715.7 km2.the Tuotuo River is i6691.0km2
     As mentioned above,we came to the conclusion that the main source of the Changjiang River is the Dam River instead of the Tuotuo River.
Document Type专著章节文集论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7273
Collection成都山地所知识仓储(2009年以前)
山区发展研究中心
Recommended Citation
GB/T 7714
孙广友,邓伟,邵庆春,等. 长江正源研究. 长江河源区自然环境研究. 北京市:科学出版社,1995:1-20.
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