Design of a Shallow Ground-Water Network to Monitor Agricultural Chemicals, Lake Wales Ridge, Central Florida.

摘要

The Florida Department of Agriculture and Consumer Services has proposed the establishment of long-term, water-quality networks to monitor shallow ground water in agricultural areas of Florida. These networks will bridge the current information gap between local-scale short duration field studies, which are required for pesticide licensing, and statewide monitoring of deeper groundwater resources. Laboratory (experimental) and short term field evaluations of the transport of agricultural chemicals to the subsurface contain some degree of uncertainty due to widespread variations in environmental conditions. The proposed regional-scale shallow ground-water networks will serve as 'early warning' networks to avoid contamination of groundwater resources. The objectives of these shallow ground-water networks are to provide information for early detection of pesticides and nitrate in the subsurface, and for evaluating temporal trends in concentrations in relation to changes in land use and agricultural practices.