Agro-well and pump diffusion in the dry zone of Sri Lanka: past trends, present status and future prospects.

摘要: The use of shallow wells, equipped with small pumps, to lift groundwater has spread rapidly in many agricultural regions tropical monsoonal Asia. In Sri Lanka, the rapid and pervasive invasion agro-wells pumps drew attention policymakers researchers, but questions were left unanswered due lack research area. This study aims fill this gap knowledge, based on observations data obtained field surveys conducted major minor irrigation schemes dry zone Lanka. report gives key findings into pattern, extent causes traditional villages irrigated settlement schemes. It investigates farmer investments private internal rate return these investments, economic viability incentives for farmers make