海岸带地下水中氮生物地球化学过程研究进展  

Research progress on nitrogen biogeochemical processes in coastal groundwater

作　　者：周光扬 周鹏鹏 王广才[1,2] 李苏娜 冯衍扉 ZHOU Guangyang;ZHOU Pengpeng;WANG Guangcai;LI Suna;FENG Yanfei(School of Water Resources and Environment,China University of Geosciences(Beijing),Beijing,100083,China;MOE Key Laboratory of Groundwater Circulation and Environmental Evolution,China University of Geosciences(Beijing),Beijing,100083,China)

机构地区：[1]中国地质大学(北京)水资源与环境学院,北京100083 [2]中国地质大学(北京)地下水循环与环境演化教育部重点实验室,北京100083

出　　处：《环境化学》2024年第3期987-998,共12页Environmental Chemistry

基　　金：国家自然科学基金(42172271)资助。

摘　　要：海岸带氮地球化学过程及其演化是海岸带水资源管理与生态环境保护的关键内容.在气候波动以及海洋潮汐动态的影响下,海岸带地下水中氮的地球化学过程会表现出时间变异性.基于国内外研究成果调研,本文针对海岸带含水层中的氮元素地球化学过程演化机制这一科学问题,归纳了影响海岸带氮元素地球化学过程的6个因素,包括温度、潮汐与波浪、海水入侵、盐度、生物扰动以及地下水动力条件;总结了氮生物地球化学过程动态演化机制的主要研究方法,包括野外水化学监测、室内氮循环实验和数值模拟方法;指出数值模拟应与室内外方法相结合,并综合考虑气象水文、潮汐水动力、温度、盐度、生物扰动及含水层非均质性等因素,以实现复杂条件下的高精度氮地球化学过程及其变化的定量识别.Nitrogen biogeochemical processes and evolution in the coastal zone are key issues of water resources management and ecological environment protection of the coastal area.Under the influences of climate fluctuation and ocean tide dynamic,the nitrogen biogeochemical processes in coastal groundwater generally exhibit temporal variability.Aiming at the scientific problem of evolution mechanism of coastal nitrogen biogeochemical processes,based on literature research,this paper summarized six factors affecting the nitrogen biogeochemical processes in coastal zones,including temperature,tide and wave,seawater intrusion,salinity,biological disturbance and groundwater dynamic conditions.In addition,this paper summarized the main research methods for researching coastal nitrogen biogeochemical processes,including field monitoring,laboratory experiment and numerical simulation.Furthermore,to achieve high precision quantitative identification of nitrogen biogeochemical processes under complex conditions,we suggest that the numerical simulation should be combined applied with indoor and outdoor methods based on a comprehensive consideration of multi-factors such as meteorology and hydrology,tide dynamic,temperature,salinity,biological disturbance and aquifer heterogeneity.

关 键 词：海岸带地下水 氮地球化学过程 演化机制 影响因素 

分 类 号：X523[环境科学与工程—环境工程] P736.4[天文地球—海洋地质]