养殖污染水体沉积物中磷的化学行为.pdfVIP

工 Lake Sci.(湖泊手十学)， 2008， 20(3): 271-276 http://www.j 1ak巳S.org. E-mail: j1ak口⑧ ( 2008 by Joumal ofLake Sciences 养殖污染水体-沉积物中磷的化学行为* 米王书洁周易勇气未端卫杨旺赣l (1 华中农业大学植物营养与生态环境研究室，武汉 430070) (2 中国科学院水生生物研究所，武汉 430072) 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， AI-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 关键词养猪场污水，鱼塘养殖，磷，磷形态，磷吸附容量 The phosphorous chemical behavior in water-sediment polluted by sewage of manure and aquiculture 1 2 1 1 MIW巳ijie ， ZHOU Yiyong , ZHU Duanwei YANG Wanggan (1: Laboratory 01 P lant Nutrition and Ecological Environment Research , Huazhong Agricultural Universi秒， Wuhan 430070 , P R. China) (2: lnstitute 01Hydrobiology , Chinese Academy 01Sciences, Wuhan 430072， 卫R. China) Abslracl: According to cornpare the content of phosphorus (P) 企action， P sorption ability of water-sedirnent in ponds polluted by sewage 企orn a hoggery and a rearing-pond , the influences of sewage frorn hoggery and fishery on P behavior in water-sedirnent systern were studied. The results indicated that sewage frorn hoggery and fishery could significantly increase P contents in water, and sewage 企orn hoggery increased rnore significantly dissolved P in water than fishery. Sewage 企orn hoggery had no significant influence on sedirnent P concentration and P sorption properties , whereas fishery could significantly increase total inorganic P, Fe bound P (Fe-P) in sedirnent and rnaxirnurn P sorption capacity and decrease P absorptive capability of sedirnent. The P sorption properties of sedirnent had sorne relationship with organic rn