摘要
2003年12月份,对丹麦针对水生环境Ⅱ的国家行动计划进行了评估,结果表明,农田的氮淋溶已经降低到1989年的一半。这归功于几种措施的成功实施,最有效的措施与肥料施用有关,包括降低作物的氮标准;提高粪肥和间作物的氮利用。虽然几乎完成了计划的目标,而且监测显示内地和海域水体内的氮浓度有相似性的、尽管从百分比上看并没有那么高的降低,河口和沿海区的生态影响还没有满意的效果。因此2004年4月,一致通过了针对水生环境…的一个新的国家行动计划,包括减少农田的氮和磷。为了确保获得按照欧盟水框架指令要求的良好水体生态环境,要把国家措施与针对个别流域的措施结合起来。
An evaluation in December 2003 of the Danish National Action Plan for the Aquatic Environment II showed that nitrogen leaching from farmland had declined to almost half the amount of that in 1989.This can be ascribed to successful implementation of several measures,the most efficient of which were related to the use of fertilizers: lowered nitrogen standards for crops,increased nitrogen utilization in manure and catch crops.Although the objectives of the plan were almost met and measure- ments have shown a similar,but not percentually as high a decrease in nitrogen concentrations in both inland and coastal waters,the ecological impact in estuaries and coastal areas is not yet satisfactorily significant.As a consequence,a new National Action Plan for the Aquatic Environment III,including both nitrogen and phosphorus reduction from farming,was agreed to in April 2004.To ensure that good ecological status can be achieved in water bodies according to the requirements of the European Union Water Framework Directive,the national measures will be combined with additional measures for individual river basins.