环境保护科学Issue(5)：123-127,5.
辽东湾河口潮间带沉积物及附近土壤硝化和反硝化强度研究
Nitrification and Denitrification Potentials of Intertidal Sediments and the Nearby Soils in Liaodong Bay Estuaries
摘要
Abstract
T sediments he derived from the estuaries of four rivers flowing into the Liaodong Bay (Xiaoling River, Daling River, Shuangtaizi River, Liao River) and the soils derived from the paddy field, corn field and reed wetland near the Daling River were taken as the study targets and suspension culture method was used to determine the nitrification and denitrification potentials of the sediments and the nearby soils. The results showed that the nitrification potential of the sediments from four different estuaries ranged from 1.32 to 4.89 mgN/kg·d , with that of Xiaoling River the highest, followed by Shuangtaizi River, Liao River and Daling River in a descending order. The denitrification potential ranged from 5.44 to 10.47 mgN/kg·d, with that of Liao River the highest, followed by Shuantaizi River, Xiaoling River and Daling River in a descending order. The nitrification potential of the soils in different use near Daling River estuarine ranged from 1.32 to 2.92 mgN/kg·d, with that of the sediment the lowest. The denitrification potential of the soils ranged from 3.79 to 7.72 mgN/kg·d, with that of the paddy field the highest. Therefore, the denitrification potential was higher than the nitrification potential with strong ability of nitrogen removal and the study findings were useful for evaluation of nitrogen transformation in the sediments and soils in the estuarine intertidal areas.关键词
沉积物/硝化强度/反硝化强度Key words
Sediment/Nitrification Potential/Denitrification Potential分类
资源环境引用本文复制引用
杜佳鑫,杜华超,王连峰..辽东湾河口潮间带沉积物及附近土壤硝化和反硝化强度研究[J].环境保护科学,2015,(5):123-127,5.基金项目
辽宁省自然科学基金项目（2013020134）；辽宁省高等学校优秀人才支持计划（LJQ2013050）；辽宁环境科研‘123工程’（CEPF2011-123-2-20）资助 （）
