IMHE OpenIR  > 山地表生过程与生态调控重点实验室
生物炭墙对紫色土坡耕地中氟苯尼考迁移影响
Alternative TitleEffects of biochar-amended wall in a sloping farmland plot of purple soil on florfenicol transport
何杨1,2; 唐翔宇2; 张建强1; 轩盼盼2,3; 鲜青松2,4
Corresponding Author张建强
2018
Source Publication中国环境科学
ISSN1000-6923
Volume38Issue:3Pages:1039-1046
SubtypeArticle
Contribution Rank2
Abstract采用实验室批量平衡实验,研究紫色土坡耕地土壤中氟苯尼考吸附-解吸特征及生物炭施用的影响,此外,开展野外坡底生物炭(重量占比5%)可渗透反应墙的构建试验,观测自然降雨条件下该反应墙对坡耕地小区中氟苯尼考随地表径流与下渗水迁移的影响.结果表明,氟苯尼考在紫色土中的等温吸附行为符合Freundlich方程,在低浓度范围内(<2mg/L),生物炭的施用一方面提高了其在紫色土中的吸附量,吸附过程可能以内扩散为主,另一方面,显著降低其解吸量;紫色土坡耕地中的淋溶作用是氟苯尼考的主要迁移方式;坡底生物炭(5%)渗透墙的构建有效地减控了其在紫色土中的淋溶迁移以及深层侧向迁移.
Other AbstractSorption and desorption of florfenicol in a purple soil of sloping farmland and the effects of biochar amendment were investigated by laboratory batch experiment.The sorption isotherms can be well fitted by Freundlich isotherm.Permeable reactive walls with and without 5% (w/w) biochar application were constructed at the slope toes of field experimental plots,in which responses of florfenicol concentrations in surface runoff and soil water upon rainfall were monitored.At low aqueous florfenicol concentrations below 2mg/L,its sorption capacity on the purple soil was greatly enhanced by biochar amendment,and it was very likely that the sorption process in biochar-amended soil took place largely through intra-particle diffusion;on the other hand,its desorption was substantially reduced by biochar amendment.Leaching was the dominant pathway of florfenicol transport.Construction of 5%-biochar-amended permeable reactive wall can effectively reduce the leaching and lateral transport of florfenicol in deep layer of the purple soil.
Keyword氟苯尼考 紫色土 生物炭可渗透反应墙 迁移 吸附
DOI10.19674/j.cnki.issn1000-6923.2018.0122
Indexed ByCSCD
Language中文
CSCD IDCSCD:6198743
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23018
Collection山地表生过程与生态调控重点实验室
Affiliation1.西南交通大学地球科学与环境工程学院;
2.中国科学院水利部成都山地灾害与环境研究所;
3.海南大学环境与植物保护学院;
4.中国科学院大学
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
何杨,唐翔宇,张建强,等. 生物炭墙对紫色土坡耕地中氟苯尼考迁移影响[J]. 中国环境科学,2018,38(3):1039-1046.
APA 何杨,唐翔宇,张建强,轩盼盼,&鲜青松.(2018).生物炭墙对紫色土坡耕地中氟苯尼考迁移影响.中国环境科学,38(3),1039-1046.
MLA 何杨,et al."生物炭墙对紫色土坡耕地中氟苯尼考迁移影响".中国环境科学 38.3(2018):1039-1046.
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