WRRCSR No. 7.4:85 Deep Percolation of Water from Pineapple Fields

Date
1985-11
Authors
Giambelluca, Thomas W.
Oki, Delwyn S.
Contributor
Advisor
Department
Instructor
Depositor
Speaker
Researcher
Consultant
Interviewer
Annotator
Journal Title
Journal ISSN
Volume Title
Publisher
Water Resources Research Center, University of Hawaii at Manoa
Volume
Number/Issue
Starting Page
Ending Page
Alternative Title
Abstract
Efforts are being made to identify the sources, concentrations, spatial extent, movements, and rates of degradation of recently detected groundwater contaminants in Hawai'i. A spatially detailed evaluation of the time series of water percolation is required so that leaching from the top soil, downward transport through the profile, and eventual movement of the pesticides within the basal groundwater may be estimated. Using the water balance method, the 1946 through 1983 sequence of downward percolating water will be estimated for each present and former pineapple grating area of central O'ahu. Thus far, work on this project has focused on land-use identification, parameter evaluation, and data gathering. Results obtained using the same model in a previous study indicate that ET-suppression by pineapple causes percolation to be significantly higher than that experienced under a natural vegetative cover. This may account for the unexpected movement of these chemicals through the great thickness separating the pineapple fields from the basal water table.
Description
Keywords
Groundwater -- Pollution -- Hawaii., Pesticides -- Environmental aspects -- Hawaii., Soil permeability -- Testing.
Citation
Giambelluca TW, Oki DS. Deep percolation of water from pineapple fields. Honolulu (HI): Water Resources Research Center, University of Hawaii at Manoa. WRRC special report, 7.4:85.
Extent
vii + 5 pages
Format
Geographic Location
Time Period
Related To
Table of Contents
Rights
Rights Holder
Local Contexts
Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.