河南省农业非点源污染负荷估算及空间分布研究  

Estimation and Spatial Distribution of Agricultural Non-point Source Pollution Loads in Henan Province

作　　者：刘增进[1] 张关超[1] 杨育红[1] 李东琴[2] LIU Zengjin ZHANG Guanchao YANG Yuhong LI Dongqin(School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450045, China Baoding Water Conservancy and Hydropower Survey and Design Institute, Baoding 071000, China)

机构地区：[1]华北水利水电大学水利学院,郑州450045 [2]保定市水利水电勘测设计院,河北保定071000

出　　处：《灌溉排水学报》2016年第11期1-6,共6页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(50849047)

摘　　要：为揭示河南省农业非点源污染负荷及其空间分布特征,采用Johns输出系数模型,对河南省18个地级市的总氮(TN)、总磷(TP)污染负荷进行估算,运用等标污染负荷法计算各地市污染物的等标污染负荷、污染源的等标负荷比,确定主要污染源,再运用Arc GIS分析其空间分布特征及成因。结果表明,河南省农业非点源TN、TP等标污染负荷最多的是南阳市、周口市、驻马店市、商丘市及信阳市,最少的是济源市、鹤壁市和漯河市;河南省农业非点源TN、TP污染主要来源是耕地、畜禽养殖和农村人口;TN、TP的空间分布有很强的一致性,且同一污染物不同区域的空间分布差异性也较小。In order to reveal the loads and the distributin of agricultural non-point pollution in Henan province, the pollution loads of total nitrogen （TN） and total phosphorus （TP） of 18 prefecture level cities in Henan prov- ince were estimated by Johns export coefficient model. The main sources of pollution were identified by the stan- dard load ratio through standard load method; the spatial distribution and the main causes were analyzed by the ArcGIS. The results showed that the agricultural non-point sources of TN, TP pollution loads in Henan province were the highest in Nanyang, Zhoukou, Zhumadian, Shangqiu, Xinyang, and the least were in Jiyuan, Hebi and Luohe; Agricultural non-point of TN and TP pollution sources of Henan province mainly were cultivated land, livestock and poultry farming and rural population; TN and TP space distribution had a strong consistency, and the space distribution differences of the pollutants of different areas were smaller.

关 键 词：TN TP 输出系数法 等标污染负荷法 空间分布 

分 类 号：X71[环境科学与工程—环境工程] X52