如果不制定综合性水政策,到2010年阿尔及利亚的需水量将超过供水量。在经历了11年的周期性干旱之后,该国大坝断流、地下水位下降、水质因含水层遭受工农业污染物污染而恶化。 据估算,阿尔及利亚每年的可供水量总计为70亿m~3。根据假定,即该国灌溉面积从30万公顷增加到50万公顷,人口从2500万增加到4500万,且供水量不会因污染而有太多的损失,那么到2010年该国的需水量将与供水量持平。 Without a comprehensive water policy, water demand in Algeria will exceed that of 2010 by 2010. After 11 years of periodic droughts, the dam in the country has been shut off, water tables have dropped and water quality has been aggravated by aquifer contamination by industrial and agricultural pollutants. It is estimated that the annual water availability in Algeria amounts to 7 billion m ~ 3. On the assumption that the country’s irrigation area has increased from 300,000 hectares to 500,000 hectares and the population has increased from 25 million to 45 million and that water supply will not suffer much from pollution, then by 2010 the country’s water demand Will be equal to the amount of water supply.