河南农业科学2012，Vol.41Issue(3)：72-74,3.
赣江尾闾区农田沟渠径流中氮磷负荷与迁移特征
Nitrogen & Phosphorus Loading and Migration of Farmland Ditch Runoff in Ganjiang River
摘要
Abstract
The nitrogen &■ phosphorus concentration levels and migration of farmland ditch runoff in Ganjiang river were investigated based on field sampling and experimental analysis. Results showed that the mean values of total nitrogen (TN) and total phosphorus (TP) were 1. 177 mg/L and 0. 044 mg/L, respectively. In comparison with rivers (TN=0. 936 mg/L,TP=0. 032 mg/L) ,the nitrogen &- phosphorus contents of farmland ditch runoff were higher, which could contributes greatly to river nitrogen &- phosphorus. In spatial distribution of nitrogen &. Phosphorus concentration, the changes of their contents fluctuated,but the general trend was decreasing gradually. The farm ditch system had a good interception and removal efficiency of nitrogen and phosphorus.关键词
赣江尾闾区/农田地表径流/氮磷负荷/迁移特征Key words
Ganjiang river/ farmland ditch runoff/ nitrogen &- phosphorus loading/ migration分类
资源环境引用本文复制引用
向速林,王全金,徐刘凯,聂发辉..赣江尾闾区农田沟渠径流中氮磷负荷与迁移特征[J].河南农业科学,2012,41(3):72-74,3.基金项目
国家自然科学基金项目(51148006) （51148006）
江西省科技支撑重点项目(2010BNA09600) （2010BNA09600）
江西省自然科学基金项目(2009GZH0023) （2009GZH0023）
华东交通大学铁路环境振动与噪声教育部工程研究中心资助项目(09TM11) （09TM11）
