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The Jaffna Peninsula has four main aquifer systems, of which the largest Chunnakam aquifer is in the Valikamam area. This is an intensively cultivated area in the Jaffna Peninsula, and consequently, excessive application of nitrogen fertilizer is found. Other sources of nitrate include organic ma...
Recent development activities in the Jaffna Peninsula are threatening the viability of the region's natural groundwater supply. Rainwater Harvesting (RWH) represents one important approach to remedying this situation. By accumulating freshwater during Jaffna's wet season, household RWH systems ca...
In Uzbekistan, generally practiced methods of irrigating crops are varieties of flooding (basin, border and furrow). These practices have created problems of waterlogging, salinity and lower irrigation efficiency. Waterlogging and salinization already affect 50 percent of irrigated areas, and irr...
Irrigated agriculture is undeniably a significant modification to natural ecosystems, and one which has not been without significant adverse impacts on the ecology and hydrology of the landscapes and river basins in which irrigation systems are located. A lack of consideration for broader ecosyst...
The term water security has infiltrated prominent discourse in the international water and development communities, but achieving it is often viewed as a new water sector target. Despite the elevated status that the concept has increasingly acquired, the understanding of the term is murky and qua...
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