水体富营养化危害、成因及防治

水体富营养化严重影响人类健康、可用水量、水体经济价值和水体寿命,而大量污水超标排放、农业面源污染、水产养殖业失当、周边环境恶化和底泥氮磷溶出是其形成主因。在治理和恢复富营养化水体的实践中,必须强化污染预防意识,从源头上削减污染负荷,同时选用切实可行、系统协调、针对性强的政策和措施并长期坚持实施,才能起到事半功倍的效果。

Hazards,Causes,Prevention and Cure Strategies of Water Body in Eutrophication

Eutrophication influences human health, usable water quantity, economical value and lifetime of water body significantly, whose main causes are the discharge of abundant wastewater exceeding discharge standards, agricultural surface -resource pollution, improper aquaculture, surroundings worsening and nitrogen or/and phosphorus leak from deposit. During harness and restore of water body in eutrophication, the idea of pollution prevention must be strengthened whittling pollution loading from pollution resources; furthermore, effective,systematical, correspondent and strongly pertinent policies and measures should be adopted and kept implemented in a long term to get twice the result with half the effort.