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单词 drainage basin relief ratio
释义
drainage basin relief ratio

Geology and Earth Sciences
  • An index (Rh) of the relief characteristics of a drainage basin. It is expressed as Rh = H/L, where H is the difference in height between the highest and lowest points in the basin and L is the horizontal distance along the longest dimension of the basin parallel to the main stream line. The ratio can provide a measure of the rate of sediment loss from a basin, with which it tends to be positively correlated.


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