Premium
Interception by eastern white pine
Author(s) -
Helvey J. D.
Publication year - 1967
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr003i003p00723
Subject(s) - throughfall , stemflow , interception , environmental science , evapotranspiration , canopy interception , canopy , hydrology (agriculture) , litter , forestry , ecology , soil water , geography , soil science , biology , geology , geotechnical engineering
Measurements of gross rainfall, throughfall, stemflow, and litter interception in three eastern white pine stands, age 10, 35, and 60 years, in the Southern Appalachians of western North Carolina, were used to derive regression equations for estimating throughfall, stemflow, and the sum of throughfall and stemflow from measurements of gross rainfall. Equations for total interception loss were derived by algebraically combining losses from the canopy and litter. These equations were used to predict total seasonal interception loss ( I ) from measurements of total seasonal rainfall (Σ P ) and number of storms ( N ). Equations for the 10‐, 35‐, and 60‐year‐old stands are I = 0.05( N ) + 0.08 (Σ P ), I = 0.05( N ) + 0.12(Σ P ), and I = 0.06( N ) + 0.18(Σ P ), respectively. Total interception loss in white pine increased with stand age, and total loss from all pine stands studied exceeded losses calculated for mature hardwoods. During the dormant season, calculated monthly interception loss from mature hardwoods and white pine exceeded potential evapotranspiration calculated by the Thornthwaite method.