上海市郊氮肥流失及去向研究  

Investigation of Nitrogen Losses and Moving Directions in Shanghai Suburban

作　　者：周根娣[1] 章家骐[1] 卢善玲[1] 

机构地区：[1]上海市农业科学院环境科学研究所,上海201106

出　　处：《上海环境科学》1996年第4期37-39,共3页Shanghai Environmental Sciences

摘　　要：化肥,特别是化肥中氮素,在施用过程中有部分流入到环境中去,对环境造成污染。为了解化肥中氮素的流失情况及去向,对上海青浦县进行了水稻、大麦田间测坑试验研究。经过氮素差额排出负荷量,渗漏水氮素负荷量,地表水氮素负荷量,降水氮素负荷量,灌溉水氮素负荷量等数据的调查和统计,得出氮素全年损失率及损失途径。When chemical fertilizers are applied to the fields, part of them passing into the environment, particularly nitrogen fertilizers, and leads to pollute environment. In order to find out the losses and moving directions of nitrogen in chemical fertilizer, an experiment of 'measure pit' at rice and barley field has been conducted in Qingpu County, Shanghai. Through the survey and statistics of data, about loading amount of nitrogen minus quota discharge, loading amount of permeable water nitrogen, loading amount of surface water nitrogen, loading amount of precipitation nitrogen and loading amount of irrigation water nitrogen, then the loss rate and loss channels of nitrogen in a whole year could be obtained.

关 键 词：化肥流失 损失率 上海郊区 氮肥 环境污染 

分 类 号：S147.2[农业科学—肥料学] X592.02[农业科学—农业基础科学]