Skip to Main Content
Rates, timing, and mechanisms of rainfall interception loss in a coastal redwood forestAuthor(s): Leslie M. Reid; Jack Lewis
Source: Journal of Hydrology 375(3-4):459-470
Publication Series: Scientific Journal (JRNL)
Station: Pacific Southwest Research Station
PDF: View PDF (1.01 MB)
DescriptionRainfall, throughfall, and stemflow were monitored at 5-min intervals for 3 years in a 120-year-old forest dominated by redwood (Sequoia sempervirens) and Douglas-fir (Pseudotsuga menziesii) at the Caspar Creek Experimental Watersheds, located in northwest California, USA. About 2.5% of annual rainfall reaches the ground as stemflow at the site, while 22.4% is stored on foliage and stems and evaporates before reaching the ground. Comparison of the timing of rainfall and throughfall indicates that about 46% of the interception loss occurs through post-storm evaporation from foliage and 54% is either evaporated during the storm or enters long-term storage in bark. Until bark storage capacity is saturated, the proportion of rainfall diverted to bark storage would be relatively constant across the range of rainfall intensities encountered, reflecting primarily the proportional incidence of rainfall on surfaces contributing to bark storage. In any case, loss rates remain high—over 15%—even during the highest-intensity storms monitored. Clearcut logging in the area would increase effective annual rainfall by 20-30% due to reduction of interception loss, and most of the increase would occur during large storms, thus potentially influencing peakflows and hillslope pore-pressures during geomorphically significant events.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationReid, Leslie M.; Lewis, Jack. 2009. Rates, timing, and mechanisms of rainfall interception loss in a coastal redwood forest. Journal of Hydrology 375(3-4):459-470.
- Rates and Implications of Rainfall Interception in a Coastal Redwood Forest
- The influence of tree morphology on stemflow in a redwood region second-growth forest
- Status of natural resources in Redwood Creek basin, Redwood National Park
XML: View XML