IT IS NOT ALWAYS SAFE TO SAVE WATER EFFECTS OF WATER-SAVING IRRIGATION METHODS ON SOIL SALINITY CONTROL IN SEMI-ARID REGIONS

摘要

The progressive scarcity of water for irrigation in many (semi-)arid and sub-humid regions has urged individual irrigators and water management organizations to minimize irrigation water supplies and recycle drainage water. Measures have been taken at field level and at river basin or irrigation command area level to increase overall irrigation efficiencies and reallocate "saved" water.