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SATURATED SOIL HYDRAULIC CONDUCTWITY IN LOBLOLLY PINE PLANTATIONS ON DRAINED SITES 1
Author(s) -
Nelson Paul A.,
Gregory James D.
Publication year - 1988
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1988.tb00925.x
Subject(s) - loam , loblolly pine , hydraulic conductivity , soil water , pinus <genus> , environmental science , soil science , hydrology (agriculture) , geology , botany , biology , geotechnical engineering
Variation of in situ measured saturated hydraulic conductivity (KS) with stand age was examined in drained and intensively managed loblolly pine ( Pinus taeda L.) plantations on very poorly drained Bayboro loam soils. Stand ages studied were 1‐year‐old and 14‐years old. No differences in Ks values were found between the stand ages. In addition, no differences in core measured soil properties were found between the stand ages, indicating that there were no differences in the pore structure of the soil matrix. There was large variation of Ks within stands and between stands within ages. The mean within stand Ks values ranged from 0.66 cm/hr to 4.85 cm/hr. The frequency of tests exhibiting pipe flow through large non‐capillary voids was significantly greater in the older stands; however, the continuity of the voids in the soil, and whether or not non‐Darcy type flow would occur in a saturated profile, could not be determined.