Health impact assessment is primarily concerned with the consequences of policies, plans, programmes & projects on the health of communities. This is an introduction to the subject, in plain language, with reference to both general & specific contexts, & both high & low income economies.
More irrigated land is devoted to rice than to any other crop. A method to save water in irrigated rice cultivation is the intermittent drying of the rice fields, known as alternate wet/dry irrigation (AWDI). This report reviews previous studies in AWDI, with a focus on mosquito vector control, water saving, and rice yields. Examples are provided from a number of countries.
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