吉林市城区地下水中总氮的分布规律及迁移影响因素分析  

Analysis of Distribution Law and Influence Factors of Transportation of Total Nitrogen in Groundwater in Jilin City

作　　者：孟晓路[1] 梁秀娟[1] 盛洪勋 郭龙浩 

机构地区：[1]吉林大学环境与资源学院,长春130026 [2]吉林市水资源管理办公室,吉林132000 [3]辽宁地质工程勘察施工集团公司,沈阳 110011

出　　处：《水土保持研究》2007年第6期85-88,共4页Research of Soil and Water Conservation

基　　金：中国地质调查局项目(2003104001);吉林省科技攻关项目(20020401)

摘　　要：针对吉林市城区地下水中总氮浓度逐年升高的现象,本文对总氮浓度在空间上和时间上的分布规律进行了研究。在空间上,南部由丰满大坝及二松支流——温德河谷地向北部市区方向,地下水中总氮浓度逐渐升高;东西以贯穿整个城区的第二松花江为分界线,东部以/牛河支流的河谷平原区为中心地带,地下水中总氮浓度由东向西逐渐降低;西部以九站工业区方向向孤店子井灌区所在地,总氮浓度逐渐降低。在时间上,年内变化表现为,丰水期的总氮浓度高于枯水期,但农业区的总氮浓度变化较为规律,工业区的变化呈现出不规律的现象;在年际上,总氮在年际的变化规律随地点的不同而存在差异。工业、农业和生活污染源是总氮的主要来源,其分布和污染强度是总氮浓度变化规律的重要影响因素。总氮的迁移主要受到大气降水、灌溉水、农业施肥量、土壤的渗透性以及包气带厚度等因素的影响。并针对控制及减少输入到地下水中总氮的总量提出了建议。According to the situation of total nitrogen＇s increasing in the groundwater in Jilin City, the article analyses the distribution law of total nitrogen in space and time. On space, from Fengman bank in the south and the tributary of Second Songhua River-Wende River valley, to city in the north, total nitrogen in the groundwater is increasing gradually; and in the east and west, the dividing line is Second Songhua River which breakthroughs the city, to its east, taking the Mangniu River valley with the centre zone, total nitrogen in the groundwater decreasing from the east to the west; to its west, it decreases gradually from Jiuzhan industrial area to Gudianzi irrigation area. On time, its expression in annual is, total nitrogen is higher in high water period than low water period, but it varying in agriculture area much regularly, and variations in industrial area are not so regularly; in interannual, varying law of total nitrogen is different with its location. Industry, agriculture and life pollutions are sources of total nitrogen, so their distribution and pollution intensity are important influence factors of total nitrogen＇s varying law. Transportation of total nitrogen is meanly effected by precipitation, irrigation, rate of fertilizer application of agriculture, permeability of soil and thickness of unsaturated zone et al. And we also give some advice on controlling and reducing the total quantity of TN, which was input into the groundwater.

关 键 词：总氮 分布规律 影响因素 地下水 吉林市 

分 类 号：X524[环境科学与工程—环境工程]