Land degradation, soil conservation and
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Ian Douglas
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Article
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1989
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John Wiley and Sons
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English
β 705 KB
Ninety per cent of the sediment load of the Yellow River, the world's muddiest river, comes from the loess plateau region in the middle course of the river. Control of this sediment supply is essential to avoid the danger of flooding in the lower reaches on the South China Plain. Since 1971, sedimen