Area	North Fork Big River
Topic	Sediment: Matthews Landslides Volumes by Land-Use NF Big 1921-2000

 

Caption:  The chart above shows the total estimated sediment volumes from delivered landslides by land-use practice in each North Fork Big River sub-basin (1921-2000). Sediment volumes were computed by Matthews and Associates (2001). Roads and harvest related slides contributed a majority of the sediment; specifically, road related slides have been important sediment contributors in James and Chamberlain Creeks. Matthews and Associates state: "Significant construction of new roads has led to increasing sediment yields from road surface erosion, despite improved practices. Under current conditions (1989-1999 period), management-related sediment delivery is estimated to be 51.7% of the total input." See Info Links for more background information and links to references.

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