河岸缓冲带植物配置模式对面源污染物的净化效果  

Effects of Different Plant Configuration Modes of Riparian Buffer Strips on Runoff Purification

作　　者：刘燕 夏品华[2] 郑钧宁[3] 张俊美[2] 林陶[2] 薛飞[2] 寇永珍 

机构地区：[1]贵州省生物研究所,贵州贵阳550009 [2]贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室,贵州贵阳550001 [3]贵州大学农学院,贵州贵阳550021

出　　处：《贵州农业科学》2014年第10期248-251,共4页Guizhou Agricultural Sciences

基　　金：贵州省社发项目(SY20123016);国家科技支持计划(2011BAC02B02);贵阳市社会发展攻关项目(201110370)

摘　　要：为选择适合喀斯特山区河岸带修复的植物种类及其配置模式,构建了白花三叶草、高羊茅、金叶女贞3种植物及其不同配置模式的缓冲带试验基地,开展农田径流总氮(TN)、总磷(TP)、固体颗粒悬浮物(SS)的截留净化试验。结果表明:不同植物及配置对面源污染物的净化效果不同。混合草本(高羊茅+白花三叶草)对TN、TP的去除效果较好,去除率分别为39.35%和50.89%;混合草本+灌木(高羊茅+金叶女贞+白花三叶草)对SS的截流效果明显,去除率为86.71%;高羊茅对SS、TN、TP去除效果最差,去除率分别为72.33%、26.49%和26.98%。应加强河岸缓冲带不同植物配置模式下污染物的截留转化机理的研究。In order to select plant species and configuration modes of riparian buffer strips suitable for karst mountainous area,a riparian buffer strip test base was constructed with Trifolium repens ,Festuca arundinacea and Ligustrumx vicaryi ,and the purification effects on TN,TP and SS were studied. Results：The purification effect of T.repens mixed with F.arundinacea and L.vicaryi riparian buffer strip was obvious and it could reach 86.71% of the SS reduction.T.repens mixed with F.arundinacea riparian buffer showed remarkable reduction effect of TN and TP,with removal rates of TN and TP of 39.35% and 50.89%.F.arundinacea had the lowest removal rates of runoff pollution in all field test.It was the worst responsible for 72.33% SS reduction,followed by for TN removal rate of 26.49% and for TP reduction rate of 26.98%.So the transformation mechanism of different plant configuration mode in riparian buffer strips should be strengthened.

关 键 词：河岸缓冲带 植物 配置模式 径流污染 面源污染 净化效果 

分 类 号：S273.5[农业科学—农业水土工程]