joe kane, nisqually community forest
TRANSCRIPT
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