Prognosis on Managing Trace Elementsby Kenneth K. Tanji, Univ of California, United States,
Abstract: Management options assessed for trace elements discharged from irrigated lands include source control, drainwater reuse, drainwater treatment and removal of contaminants, disposal, and institutional and jurisdictional control measures. A combination of source control and other drainage water management options has the potential of reducing the toxic element problem. What effect drainage reductions and other management options will have on reducing the discharge of trace elements is to some extent influenced by site specific conditions. In the most severely trace element-impacted lands and water, the economic viability of agriculture will be severely tested and this may lead to change in land use.
Subject Headings: Trace elements | Drainage | Water pollution | Water quality | Water discharge | Irrigation | Land use | Water management
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