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KRIS Gualala : Chart Page

Area Rockpile Creek
Topic Sediment: D50 Values for Rockpile Creek Basin
Caption:  The Chart above shows the median particle size distribution (D50) of the streambed at several locations in lower Rockpile Creek. This chart shows a D50 range in light blue which overlaps with the Knopp (1993) 95% confidence interval for median particle size of control streams or those that had at least 40 years rest from logging. Small average particle size can contribute to bedload mobility, which decreases salmonid spawning success. Data provided by Gualala Redwoods Inc. as part of timber harvest plans. See Info Links for more information and links to bibliographic resources.

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To view a table of information about this data click Metadata .
To view the table with the chart's data, click Chart Table web page.
To download the table with the chart's data, click rpcsd50.dbf (size 871 bytes) .