论文部分内容阅读
中部地区南水北調是我国长远水利規划中,沟通长江、汉水、淮河、黄河、海河各流域为統一水系的宏伟理想;是充分利用长江流域丰富水利資源,从长江自流引水輸入北方干旱地区,从而促进工农业高速度发展的最具有現实意义的路綫之一。中部地区的引水渠綫中,以三峽至丹江口一段的工程最为艰巨。初步认为渠綫循鄂西山地与江汉平原间的过渡地带通过較为理想。在这个地带內,如何根据地貌条件,来确定渠道的布置路綫,是富有实践意义和理論价值的一項工作。对这个地带进行調查后,在理論上和实践上有以下几点收获: (1)通过对沿綫地区地貌发育历史的研究,认为鄂西山地自第三紀以来总的趋势是上升而扩大的穹窿式的构造运动为主。因此,各河流的发育的总趋势是
In the long-term water conservancy planning of the central region, the south-to-north water diversion project is a grand ideal of communicating the Yangtze River, the Han River, the Huaihe River, the Yellow River and the Haihe River into a unified river system. It is to make full use of the abundant water resources in the Yangtze River basin and to import water from the Yangzi River into northern arid areas, One of the most realistic routes for the rapid development of industry and agriculture. In the middle part of the diversion channel, the project from the Three Gorges to the Danjiangkou Section is the most arduous. It is preliminarily thought that it is preferable that the canal passes the transitional zone between Western Hubei and Jianghan Plain. In this zone, how to determine the layout of the channels according to the landform conditions is a task of rich practical and theoretical value. After investigation of this area, the following points have been gained in theory and practice: (1) Through the study of the history of landform development in the areas along the line, the general trend of mountainous area in western Hubei since the Tertiary is to rise and to be enlarged Dome structure movement based. Therefore, the general trend of the development of rivers is