面源污染物输出系数模型的研究进展.pdfVIP

Chinese Journal o f Eco logy 2009, 28( 4) : 755- 7 61 * * * 薛利红 杨林章 ( 中国科学院南京土壤研究所, 南京 210008) 面源污染的量化研究对水质管理具有重要意义经典的输出系 模型法以其结 构简单应用方便输入 据容易获取等特点在农业面源污染研究中得到了广泛的应用和 发展本研究介绍了输出系 模型法的发展历程及其在农业面源污染负荷估算中的应用, 概括了输出系 的获取途径及其在不同条件下的取值, 并指出尺度效应问题输出系 模 型与水文模型的耦合将是输出系 模型今后的主要研究方向 面源污染; 输出系 模型; 污染负荷; 尺度效应; 模型耦合 X 505 A 1000- 4890 ( 2009) 04- 07 55- 07 Research advances of export coefficient model for nonpoint source pollutionXU E L i hong, YANG L inzhang (Institute of So il Science, Ch ineseA cademy of Sc iences, N anj ing 210008, Ch ina ). Ch inese Journal of E cology, 2009, 28( 4) : 755- 761 Abstract: Qu antitative stu dy o f nonpo int source po llution is of significance in effect ive m anage m ent o f w ater qua lity Export coe ff icient m ethod, ow ing to its re lative ly few er data input requ ire m ent, smi p le stru cture, and easy app lication, w as w idely u sed in the study of agricu ltural non po int source pollution, and ob tained greater developm ent Th is pap er in troduced the developm ent process of export coeffic ient m odel and its applicat ion in estmi a ting ag ricultura l nonpo int source po llutant load, and generalized the acqu irem ent approaches of po llutant export coeff icients and their va lu es under different conditions The scale effect o f export coe ff icient, the coup ling of ex port coefficient m ode w ith hydro log ica lm odel w ere proposed as the m ain study areas of the export coeffic ient m odels in the future K ey words: nonpoint source po llution; expo rt coeffic ien t mode;l po llu tant load; scale e ffect; m ode l coup lin