Hydrologic Differences between Selected Forested and Agricultural Soils in Hawaii
1977
Wood, Hulton B.
Comparisons of hydrologic characteristics of soil under different land uses were made at 15 sites on the islands of Hawaii, Maui, and Kauai. A site consisted of at least two adjacent but different land uses on the same soil series. One land use at a site was always an ungrazed forest; the others were planted either to sugarcane (Saccharum officinarum) or pineapple (Ananas comosus), or used as pasture. Infiltration rates on 14 of the 15 sites were found to be higher under forest cover than agriculture uses. Mean weight diameters of the surface soil aggregates were larger for forested soils than for soils planted to sugarcane or pineapple. Aggregate size also varied with soil order and soil moisture content at time of testing. Lower bulk densities and greater porosities were found in forest-covered soils than in the nonforested soils.
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