养殖污染水体-沉积物中磷的化学行为  

The phosphorous chemical behavior in water-sediment polluted by sewage of manure and aquiculture

作　　者：米玮洁[1] 周易勇[2] 朱端卫[1] 杨旺赣[1] 

机构地区：[1]华中农业大学植物营养与生态环境研究室,湖北武汉430070 [2]中国科学院水生生物研究所,湖北武汉430072

出　　处：《湖泊科学》2008年第3期271-276,共6页Journal of Lake Sciences

基　　金：中国科学院知识创新工程重要方向项目(KZCX2-YW-426);国家自然科学基金项目(20577013)联合资助

摘　　要：通过受猪场污水影响的池塘和鱼塘水生生态系统中表层水-沉积物的磷含量、磷吸附能力比较,了解猪场污水、鱼塘养殖对表层水-沉积物系统磷行为的影响.结果表明,猪场污水排放和鱼塘养殖都会明显增加水体中溶解性反应磷(DRP)和溶解性有机磷(DOP)的含量,从DRP、DOP、PP3种形态磷在总磷中所占的比例来看,DRP是水体中主要增加的磷含量.猪场污水排放对水体中磷的增加作用比鱼塘养殖更剧烈一些,猪粪是水体中磷的主要来源.但是猪场污水排放对沉积物中不同形态磷含量的影响不明显,这可能与水体中磷的存在形态和转化时间有关.鱼塘养殖增加了沉积物中有机质、Fe-P、Al-P和总无机磷含量,增加了沉积物对磷的最大吸附容量,但是对磷的吸附能力却有所降低,进而增加了沉积物中磷向上覆水释放的可能.According to compare the content of phosphorus （P） fraction, P sorption ability of water-sediment in ponds polluted by sewage from a hoggery and a rearing-pond, the influences of sewage from hoggery and fishery on P behavior in water-sediment system were studied. The results indicated that sewage from hoggery and fishery could significantly increase P contents in water, and sewage from hoggery increased more significantly dissolved P in water than fishery. Sewage from hoggery had no significant influence on sediment P concentration and P sorption properties, whereas fishery could significantly increase total inorganic P, Fe bound P （Fe-P） in sediment and maximum P sorption capacity and decrease P absorptive capability of sediment. The P sorption properties of sediment had some relationship with organic matter content in sediment.

关 键 词：养猪场污水 鱼塘养殖 磷 磷形态 磷吸附容量 

分 类 号：X52[环境科学与工程—环境工程] S565.4[农业科学—作物学]