摘要
由于目前污染治理仍然缺乏对于拦截后污染物的后期迁移转化过程的深入探索,为此通过开展九龙江不同植被类型的河岸缓冲带土壤对总磷的等温吸附、解吸实验,研究九龙江上游流域内不同植被河岸缓冲带土壤对总磷的吸附解吸特征,以期为九龙江流域的面源污染治理以及河岸植被缓冲带的构建提供理论依据和实践参考。实验结果表明,土地对磷的吸收量和解吸量大体上随初始磷含量的提高而增大,且不同植被类型缓冲带对磷的解吸具有滞后性,那些能够大量吸收磷的河岸植被缓冲带,在经历一定时期的累积后,解吸量也同样较大。
Due to the lack of in-depth exploration on the later migration and transformation process of pollutants after interception in current pollution control,isothermal adsorption and desorption experiments of phosphorus in soil of different vegetation types of riverbank buffer zones in Jiulong River were conducted to study the adsorption and desorption characteristics of phosphorus in soil of different vegetation riverbank buffer zones in the upper reaches of Jiulong River,in order to provide theoretical basis and practical reference for non-point source pollution control and the construction of riverbank vegetation buffer zones in Jiulong River Basin.The results indicate that the absorption and desorption of phosphorus by land generally increase with the increase of initial phosphorus content.Different vegetation types of buffer zones have a lag in phosphorus desorption.The riparian vegetation buffer zones that can absorb a large amount of phosphorus also have a relatively large amount of desorption after a certain period of accumulation.
作者
任桐萱
奚立宗
罗汉
刘莹
沈秉璐
Ren Tongxuan;Xi Lizong;Luo Han;Liu Ying;Shen Binglu(Gansu Provincial Office of Weather Modification,Lanzhou 730000,China;Nanjing University of Information Science&Technology,Nanjing 210044,China)
出处
《环境科学与管理》
2025年第6期173-176,共4页
Environmental Science and Management
基金
第二次青藏高原综合科学考察研究项目(2019QZKK0104)
甘肃省自然科学基金项目(22JR5RA754)
甘肃省气象局科研项目(Ms2022-21)。
关键词
九龙江流域
河岸植被缓冲带
Langmuir方程拟合
吸附解吸特征
Jiulong River Basin
riparian vegetation buffer zone
Langmuir equation fitting
adsorption and desorption characteristics
