基于GMS模拟预测云南保山盆地孔隙水中氨氮的迁移规律  

PREDICTING THE MIGRATION PATTERN OF AMMONIA NITROGEN IN PORE WATER OF BAOSHAN BASIN,YUNNAN BASED ON GMS SIMULATION

作　　者：杨加明 徐世光[1,2] 李胜 张佳慧 YANG Jia-ming;XU Shi-guang;LI Sheng;ZHANG Jia-hui(Kunming University of Technology,Kunming 650093,China;Yunnan Geology and Mining Engineering Survey Group Company,Kunming 650011,China;Yunnan Southern Geological Survey Engineering Co.,Ltd,Yunnan,Dali 671000,China)

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]云南地矿工程勘察集团公司,昆明650011 [3]云南南方地勘工程有限公司,大理671000

出　　处：《地质灾害与环境保护》2023年第4期103-109,共7页Journal of Geological Hazards and Environment Preservation

摘　　要：针对云南保山盆地地下水污染情况,在查明研究区的水文地质条件基础上,仅考虑氨氮污染物在对流及弥散作用的情况下,利用GMS建立其溶质运移模型,模拟预测1000 d、3000 d及5000 d氨氮的物理位置特征及迁移规律,结果显示,氨氮在地下水运移的过程中,不同浓度的污染晕是以高浓度为中心基本对称分布的,其浓度含量由中心向边缘逐渐变小,说明在对流及弥散作用下,氨氮是沿着水流方向随地下水缓慢运移,并且由迁移距离与时间关系图得出,在运移过程中,对流作用对氨氮的运移起决定性作用。Based on the hydrogeological conditions of the study area,the solute transport model of ammonia nitrogen pollutants under convection and dispersion was established by using GMS to simulate and predict the physical location characteristics and migration law of ammonia nitrogen at 1000 d,3000 d and 5000 d.The results show that in the process of ammonia nitrogen transport in groundwater,the halo of pollution with different concentrations The results show that the pollution halo of different concentrations of ammonia nitrogen is symmetrically distributed with high concentration as the center,and its concentration content gradually decreases from the center to the edge,which indicates that the ammonia nitrogen is slowly transported with the groundwater under the convection and dispersioneffects.

关 键 词：GMS 对流作用 弥散作用 模拟预测 

分 类 号：X523[环境科学与工程—环境工程]