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05,12Comprehensive equipment matching and price introduction of sand and gravel production line

05,12Comprehensive equipment matching and price introduction of sand and gravel production line

Jan 04, 2020 This is why sand beds dominate in low-gradient streams even when the sediment load is primarily silt or clay-sized particles. A study by Gore (1978) indicates that the highest faunal diversity of benthic macroinver-tebrates occurs in gravel-bed streams. Within the gravel-bed streams there are optimal conditions for faunal diversity.

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