内河滨岸缓冲带不同植被配置对面源污水中NH_4^+-N的去除效果  

Effects of NH_4^+- N Removal for Non- point Source Pollution by Inland Riparian buffer strips different Plant Combination

作　　者：王诗乐[1] 张帅[1] 王贺[1] 王珊珊[1] 沈海龙[1] 高大文[1] 

机构地区：[1]东北林业大学林学院,哈尔滨150040

出　　处：《森林工程》2015年第5期7-10,14,共5页Forest Engineering

基　　金：国家科技部"十二五"科技支撑项目(2011BAD38B03)

摘　　要：本试验选择东北地区常见植物,在哈尔滨市何家沟滨岸缓冲带设置3条不同植被配置的样带,以对比不同植被配置对地表径流和渗流污水中的NH+4-N去除效果。结果表明:植被缓冲带能够有效截留面源污水中的NH+4-N物质;缓冲带对污水中氨氮去除效果随沿程距离的增加而提高;不同植被配置对滨岸缓冲带污水氨氮净化效果影响显著,其中蒙古栎+暴马丁香+早熟禾+黑麦草的植被配置方式对污水中NH+4-N去除效果最好,其对地表径流、土壤下20 cm渗流和土壤下40 cm处渗流中NH+4-N的去除率分别达到35.3%、52.6%和65.3%。研究结果可为城市内河面源污染治理提供理论参考,为河岸滨岸缓冲带的构建提供科学依据。Local plants were selected from the northeastern region for the experiment. Set three different configurations of vegetation transects in Harbin Hejiagou riparian buffer zone. Comparison of different vegetation configuration on runoff and seepage sewage removal of NH4^＋-N. The results show that,vegetation buffer strips can effectively retain runoff water NH4^＋-N substances; Buffer zone for sewage ammonia removal of increases along the way with distance to improving; Different configurations of vegetation have significantly affected on riparian buffer zone effluent ammonia. Where： Mongolian oak ＋ Syringa reticulata ＋ bluegrass ＋ ryegrass vegetation configuration NH4^＋-N removal in sewage works best,Its surface runoff and soil under the 20 cm,40 cm at the seepage of NH4^＋-N removal rate reached 35. 3% 、52. 6% 、65. 3%. The results can provide theoretical references to inland point source pollution control,provide a scientific basis for the construction of riparian buffer strips.

关 键 词：滨岸缓冲带 植被配置 面源污水 氨氮去除 

分 类 号：X171.1[环境科学与工程—环境科学] S668[农业科学—果树学]