到 2 0 0 5年 ,我国将对受到污染的水环境进行综合整治 ,并通过工程措施使化学需氧量和氨氮的排放总量削减 10 %。国家有关部门预计 ,我国“十五”期间在水污染防治领域的投资将达 2 70 0亿元。据权威部门的监测表明 ,到 2 0 0 1年底 ,我国重要水系和湖泊的污染状况虽然有所好 By 2005, China will comprehensively rectify the polluted water environment and reduce by 10% the total chemical oxygen demand and ammonia nitrogen emissions through engineering measures. The relevant state departments estimate that China’s investment in water pollution prevention and control will reach 270 billion yuan during the “Tenth Five-Year Plan” period. According to the authoritative department’s monitoring shows that by the end of 2001, China’s major waterways and lakes pollution, although somewhat better