Effective forest management to reduce fine sediment production and delivery
2006
Sato, H.(Hokkaido. Forest Research Inst., Bibai (Japan))
In order to develop effective forest management practices which reduce fine sediment production and delivery, this paper reviews how forest operations can affect suspended sediment discharge. Cutting and unmanaged forest plantations have shown increases in suspended sediment delivery. Suspended sediment concentrations or annual yields increase following logging, and tend to gradually decline over a period of years. Road systems, such as forest roads, skid roads, and skid trails, are often sources of suspended sediment owing to mass failures or road-surface erosion. Logging activities can compact soils, thus impacting the soils' physical properties and delaying vegetation re-growth on the ground surface. In order to control sediment discharge and soil erosion, buffer strips of riparian forests should be carefully preserved and the area disturbed by forest operations should be minimized.
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