joe kane, nisqually community forest

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Project Regional LocationNisqually River Watershed

Mashel River Sub-Basin

Pierce County

PierceCounty

Busy Wild Creek

Figure 3 from Moore et al. 2004, Tree Physiology 24, 481-491(Research conducted at HJ Andrews Experimental Forest, OR)

Young vigorously growing forests have been shown to transpire over three times more water than old forests

40 year-old stand

450 year-old standTra

nspiration (

mm

day

-1)

Day of Year

Can longer forest harvest intervals increase summer streamflow for salmon recovery?

6 ft3/s

11 ft3/s

Simulated September Minimum Low Flow Average for 2006-2014

Actual

2 ft3/s

40 years 100 years

Mashel Forest Landscape Age

Yes, VELMA results indicate that establishment of older (>80 yr?) forest landscapes could significantly increase late summer streamflow compared to the

present-day Mashel watershed

Busy Wild Creek, Mashel River headwaters

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