杨柳;吴忠诚;韩瑜;吴秋燕;汪祖茂;杨玉格;

• 1:中国矿业大学地球科学与测绘工程学院

摘要(Abstract)：

为研究温榆河流域城市化过程中土地利用变化对非点源污染负荷的影响,基于GIS(地理信息系统)和RS(遥感),利用二次开发改进后的长期水文影响评价(L-THIA)模型,采用实地测得的EMC(事件平均浓度)数据,模拟了1992年和2009年非点源污染负荷量。结果表明,1992—2009年的城市化过程中商业用地、交通用地和住宅用地分别增加了13.95%、20.46%和85.76%,农业用地和水域分别减少40.04%和9.64%,导致非点源污染负荷量(总磷除外)明显增加。其中,总氮增加了3.31%,氨氮增加了12.20%,BOD5(5日生化需氧量)增加了11.87%,CODMn(化学需氧量)增加了7.62%,TOC(总有机碳)增加了15.46%,总磷下降了12.84%。交通用地、商业用地的非点源污染产出能力最强,应该成为非点源污染的重点控制区域。

关键词(KeyWords)： 环境学;非点源污染负荷;L-THIA模型;土地利用;温榆河流域

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项(2012ZX07203-006);; 环境保护部南京环境科学研究所环境保护项目

作者(Authors): 杨柳;吴忠诚;韩瑜;吴秋燕;汪祖茂;杨玉格;

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