Abstract
Journal of Food and Agriculture is a half yearly publication by the Faculty of Agriculture and Plantation Management and Faculty of Livestock fisheries and Nutrition of the Wayamba University of Sri Lanka which provides a valuable forum for scientists endeavoring in research and development aspects in agriculture, food and nutrition. Full text articles available.
Highlights
Cultivation of crops for food production and for economic benefit, and husbandry of livestock have for long been dominant activities in human communities
Potable water resources are mainly identified as surface water or groundwater
Use of Groundwater In Sri Lanka, almost 80% of the rural population depend on groundwater resources for their day-to-day needs which include drinking and sanitation needs
Summary
Cultivation of crops for food production and for economic benefit, and husbandry of livestock have for long been dominant activities in human communities. Demand is largely met by increasing the productivity of existing cultivated land. Unlike surface water bodies such as rivers, lakes and tanks which are usually exposed to human activity, groundwater is less affected as it is held underground. The dramatic growth in irrigated agriculture and consequent demand for water is met by diverting and/or storing surface water. The excess infiltration from the irrigated land causes the underlying groundwater levels to rise, sometimes by many meters, producing water logging in poorly drained soils where the groundwater level comes close to the ground surface. When the groundwater is within a meter or two of the land surface, capillary action allows water to rise further and evaporate from the land surface, resulting in salinization of soils and water. Overall assessment of the extent and severity of the impacts of salinization is not easy
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