Alternate wetting and drying (AWD) has been attracting increasing interest, because it seems to reach several useful objectives: using less water to achieve the same result; thus increasing water productivity and profitability. It is the most widely adopted water-saving irrigation practice in...

Irrigated agriculture often leads to recharge to local and regional groundwater systems greater than what the systems can absorb, resulting in the development of shallow watertables causing salinity and waterlogging. Policy based on emissions trading offers one option for effective management of...