基于输出系数模型的赤峰农业非点源污染分析  

Estimation of Pollution Loads from Agricultural Non point sources in Chifeng Region Based on Export Coefficient Modeling Approach

作　　者：朱永华[1,2] 李畅游[1] 史小红[1] 甄志磊[1] 席小康[1] 云腾 张洁[3] 杨久辉 

机构地区：[1]内蒙古农业大学,呼和浩特010000 [2]内蒙古锡林郭勒盟水文勘测局,内蒙古锡林浩特026000 [3]内蒙古乌兰察布市集宁区国土资源局,内蒙古乌兰察布012000 [4]赤峰市克什克腾旗达里诺尔国家级自然保护区管理处,内蒙古赤峰025373

出　　处：《灌溉排水学报》2016年第10期109-112,共4页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(51169011;51169017;51469025);高等学校博士学科点专项科研基金项目(20131515120005)

摘　　要：为了给赤峰市农业结构调整和流域面源污染生态工程防治提供科学的决策依据,并填补当地非点源污染研究空白,采用输出系数模型(ECM),研究了赤峰市农业非点源污染负荷量。结果表明:赤峰市2011年农业非点源污染物TN和TP负荷量分别为21 176.9 t/a和3 024.0 t/a;不同类型的污染源对研究区TN污染负荷贡献率的高低顺序为:大牲口养殖>牧草地>耕地>羊养殖>猪养殖>农村生活或林地>园地,而对TP污染负荷贡献率的高低顺序为:大牲口养殖>牧草地或羊养殖>猪养殖>耕地>农村生活>林地>园地。元宝山区农业非点源污染物TN和TP的负荷强度最高,且TN负荷强度比TP负荷强度高很多,前者是后者的7倍左右;红山区、宁城县、松山区、敖汉旗和林西县的农业非点源污染物的TN和TP负荷强度较小;其次是喀喇沁旗,巴林左旗、翁牛特旗、阿鲁科尔沁旗、巴林右旗和克什克腾旗。牲畜养殖业是农业非点源污染物TN和TP负荷的显著影响因素;各区县的农业非点源污染物TN与TP的负荷量和负荷强度空间分布不均匀。In order to provide scientific suggestions for making decision to adjust the agricultural structure and ecological engineering non-point source pollution prevention, and to fill the local non-point source pollution research gaps, the export coefficient model （ECM for estimating non-point source pollution （NPS load was used to study the agricultural non-point source pollution load of Chifeng city. The results showed that agricultural non- point source pollution loads of TN and TP were 21 176.9 t/a and 3 024.0 t/a in 2011; The contribution rate of dif- ferent types of sources to pollution load TN was as follows： large livestock breeding〉 grassland〉 land〉 Sheep farming〉 Pig farming〉 rural life or woodland〉 garden, while the contribution rates to TP pollution load was in descending order： big livestock farming〉 grassland or sheep farming〉 Pig farming〉 arable 〉 Rural life〉 woodland〉 garden. Last, agricultural non-point source pollutants total nitrogen and total phosphorus load strength of Yuan- baoshan regions were the highest, the total nitrogen load intensity was much greater than the total phosphorus load intensity, and the former was about 7 times of the latter. Total nitrogen and total phosphorous loads in Hongshan, Ningcheng, Songshan, Aohanqi and Linxi districts were second, and followed by Kalaqin Banner, Balinzuo Banner, Wengniute Banner, Alukeerqin Banner, Balinyou Banner and Keshiketeng Banner. The livestock industry had a significant impact on agricultural non-point source pollutant loads of TN and TP; The county＇s agricultural non-point source pollution TN and TP load volumes and load intensity spatial distributions were different.

关 键 词：农业 非点源污染 输出系数模型 污染负荷 

分 类 号：X71[环境科学与工程—环境工程]