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Date Posted: 06:45:30 10/18/01 Thu
Author: Monica
Subject: Drainage Basin

Hi,
I have some questions regarding the lecture notes on Drainage Basin.
1. What do you mean by homogeneous lithology? Can you explain? I don't quite understand. Does it refer to similar landsurfaces made up of only 1 type of rock? In the case of heterogeneous lithology, what will be the Bifurcation Ratio?

2.What's Eutrophication?

3.How is it that impermeable surface will generate high drainage density? I understand that Low transmissability produces high drainage density, low base flow and resultant high-magnitude peak flood.

Thanks for answering my queries,
Monica

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