干旱区气候条件下城市环境重金属多界面归趋机理与模拟

项目名称： 干旱区气候条件下城市环境重金属多界面归趋机理与模拟

项目编号： No.41461090

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 地质学

项目作者： 刘玉燕

作者单位： 昌吉学院

项目金额： 51万元

中文摘要： 城市环境污染是目前中国面临的严峻问题，重金属是城市环境主要污染物之一。由于受高强度人类干扰，城市具有自然地理要素变异、界面多样、过程复杂的特性，这使得目前对城市环境重金属多界面过程的认识仍不完善，重金属多界面迁移的影响机制仍不明确。气象、气候条件是城市环境污染物迁移转化的主要影响因素，干旱区气象、气候条件特殊，而这种特殊性对干旱区城市重金属迁移转化及多界面归趋的影响机制尚缺乏深入研究。本项目以乌鲁木齐市为研究区，探讨干旱区城市环境重金属多介质、多界面迁移过程，揭示气象、气候等干旱区城市特殊环境过程对多介质、多界面重金属迁移的影响机制，构建干旱区城市环境重金属多介质归趋模型，模拟干旱区城市重金属在多介质中的动态变化与多界面间的迁移与归趋。通过本项研究，阐明重金属在干旱区城市环境的地球化学过程，同时为干旱区城市环境重金属污染防治提供重要的理论支持。

中文关键词： 重金属；多界面过程；归趋；干旱区；城市

英文摘要： At present, city environment pollution has been a very serious problem in China, and heavy metal has been one of the main pollutants in city environment. Because of high-intensity human disturbance, properties including physical geographical elements variations, interface diversity and complex process have made the understanding about the process of heavy metal among multi-interfaces in city environment not perfect and the influence mechanism of heavy metal among multi-interface transfer still not clear. Meteorology and climate are the main factors which influence the transfer of city environment pollutants. But it is lack of the deep study about the influence mechanism of city environment pollutants transfer and multi-interface fate in arid regions which have special meteorology and climate. Urumqi is selected as the study area in this project. The heavy metal transport process among multi-mediums and multi-interfaces in city environment of arid regions will be explored and show mechanism about special environment process in arid regions influencing heavy metal transfer in multi-interfaces and multi-mediums. The project will develop the model on heavy metal multi-medium fate in arid city environment. The heavy metal multi-medium dynamic changes and multi-interface transfer and fate will be imitated. This project may help us clarify the heavy metal geochemical process for cities in arid regions and apply the scientific basis for heavy metal control as well.

英文关键词： heavy metal;multi-interface process;fate;arid regions;city