Their report in the October 2004 journal BioScience (Vol. 54, No. 10, "Water Resources: Agricultural and Environmental Issues") names farmers as "the prime target for incentives to conserve water." The report is particularly critical of irrigation practices in the United States, where subsidized "cheap water" offers scant incentive for conservation.
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At particular risk, the ecologists discovered, are aquifers, the once-vast but now diminishing underground repositories of water that are tapped by wells for agricultural irrigation and drinking water. "Given that many aquifers are being over-drafted, government efforts are needed to limit the pumping to sustainable withdrawal levels . . . Integrated water resource management programs offer many opportunities to conserve water resources for everyone, farmers and the public," they write in their report in BioScience, a publication of the American Institute of Biological Sciences.
Their report concludes with a six-point priority list for using water wisely:
- Farmers should be the prime target for incentives to conserve water.
- Water-conserving irrigation practices, like drip irrigation, should be implemented to reduce water waste.o Water- and soil-conservation practices, like cover crops and crop rotations, should be implemented to minimize rapid water runoff related to soil erosion.
- Water subsidies that encourage the wasteful use of water by farmers and others should be eliminated.
- Forests, wetlands and natural resources should be protected to enhance the conservation of water.
- Water pollution needs to be controlled to protect public health, agriculture and the environment.
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Journal
BioScience