悬浮沉积物对水体氮循环N_(2)O产生与排放过程的影响综述  

Effects of suspended sediments on N_(2)O production and emission in aquatic nitrogen cycling

作　　者：严欣睿 刘松琪 李子玉 陈艳琦 宋欣雨 单苏洁 李博铃 李大鹏 YAN Xinrui;LIU Songqi;LI Ziyu;CHEN Yanqi;SONG Xinyu;SHAN Sujie;LI Boling;LI Dapeng(School of Environmental Science and Engineering,National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology,Suzhou University of Science and Technology,Suzhou Jiangsu 215009)

机构地区：[1]苏州科技大学环境科学与工程学院,城市生活污水资源化利用技术国家地方联合工程实验室,江苏苏州215009

出　　处：《环境污染与防治》2024年第12期1829-1833,共5页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.52200232);湖泊与环境国家重点实验室开放基金资助项目(No.2022SKL018)。

摘　　要：自然水体中多种自然因素或人为因素都会导致沉积物再悬浮,形成悬浮沉积物,它具有比表面积大、吸附能力强等特点,在水体氮素迁移转化,特别是温室气体N_(2)O产生与排放过程中起着重要作用,已成为新的研究热点。因此系统阐述了悬浮沉积物在氮循环过程中产生N_(2)O的机制与影响因素,重点分析了悬浮沉积物浓度、粒径、组成等特性对氮循环中N_(2)O的影响。建议未来进一步深入探讨悬浮沉积物影响N_(2)O产生的规律及关键因素,并建立实际水体的N_(2)O监测机制以及调控与减排模型,为进一步控制水体氮素污染、完善水体N_(2)O排放机制、制定温室效应缓解策略提供理论依据。A variety of natural or anthropogenic factors in natural waters can lead to the resuspension of sediments and the formation of suspended sediments.Suspended sediments are characterized by large specific surface area and strong adsorption performance,and therefore play a key role in the nitrogen production and emission,especially in the process of production and emission of the potential greenhouse gas N_(2)O.This problem has become a new hotspot of research.This paper systematically reviewed the affecting factors of N_(2)O production and emission in nitrigen cycling,and comprehensively summarized the effects of suspended sediments concentration,particle size and component on N_(2)O production in nitrogen cycling.It is suggested that in the future,the influence factors and mechanisms of suspended sediments on N_(2)O production should be explored in depth;the research on N_(2)O production monitoring,and abatement and reduction models should be established.The aim is to provide a theoretical basis for further controlling nitrogen pollution in waters,improving the mechanism of N_(2)O emission,and formulating a greenhouse effect elleviation strategy.

关 键 词：悬浮沉积物 自然水体 氮循环 N_(2)O 

分 类 号：X52[环境科学与工程—环境工程] X16