农业磷素流失途径及控制方法研究进展

综合评述了农业磷素面源污染产生的原因及其控制方法方面的国内外研究进展。在控制磷污染源方面要注意磷肥用量和磷肥有效性的提高,减少磷素在土壤中的积累;在控制磷素流失方面要针对磷素地表和土体内迁移流失采取有效措施,减少磷素对地表水和地下水污染。磷素污染的治理关键是切断磷源和流失途径的联系,根据磷污染源的等级划分因地制宜地采取治理措施;要将磷和氮综合治理,制定适合我国国情的BMP管理模式。

Transportation of agriculture phosphorus and control to reduce the phosphorus loss to water: A review

This paper provides an integrated review of non-point pollution from agriculture phosphorus ( P ) and management strategies to control of agriculture P losses to water. Under the control of P resources, optimizing fertilizer P use-efficiency and reducing P application may be brought about to maintain a low P accumulation in soil. And the transportation of P in soil or profile must be controlled to protect the quality of both surface and underground water. Thus, cutting down the paths from the resource to transportation, as well as taking integrated measures, would be keys to control P pollution, including N and P based on P index. So, BMP, suitable to china, should be designed and practiced.