新疆天山北坡经济带土壤汞污染及生态风险评价

项目名称： 新疆天山北坡经济带土壤汞污染及生态风险评价

项目编号： No.21267020

项目类型： 地区科学基金项目

立项/批准年度： 2013

项目学科： 环境科学、安全科学

项目作者： 王卫

作者单位： 石河子大学

项目金额： 50万元

中文摘要： 汞因具有来源多样性、长距离迁移性、易转化性、富集性和高毒性的特点成为最受关注的重金属元素之一，对生态环境具有不容忽视的危害性，汞控制和减排成为国际社会共识。新疆煤化工和氯碱化工发达，但生态环境脆弱，汞污染问题更为突出。天山北坡经济带作为新疆经济最发达的地区，聚集了新疆最主要的煤化工和氯碱化工企业，深入研究该地区的汞污染现状对于新疆经济和环境可持续发展具有重要的指导意义。在本项目中，以典型地域天山北坡经济带土壤层为研究对象，开展土壤层汞污染、典型植物汞含量及生态风险评价的系统研究，旨在揭示天山北坡经济带土壤中总汞含量、汞的形态分布及时空分布格局，阐明新疆干寒气候和盐碱条件下汞的迁移、转化和富集机理，建立基于时空分布格局的汞污染生态风险评价模型，为科学评价新疆特殊环境下的汞污染及生态风险，优化煤化工、氯碱化工和农业布局提供参考依据。

中文关键词： 天山北坡经济带；土壤；重金属；风险评估；

英文摘要： Because of the source diversity, long distance transference, easy conversion, highly enrichment and high toxicity,mercury becomes one of the most attentioned heavy metal elements.It is of obviously harmful to ecological environment.So mercury control and emission reduction becomes the international social consensus. In Xinjiang province,coal chemical industry and chlor-alkali industry are developed, while weak ecological environment,so mercury pollution problem is more outstanding.As the most economically developed area of xinjiang, The North Slop Economic Belt of Tianshan Mountain gathered the main coal chemical and chlor-alkali enterprise.The thorough research of mercury pollution of the region has important guiding significance for the sustainable development of economic and environmental of xinjiang.In this project,the soil layer of the North Slop Economic Belt of Tianshan Mountain is as the research object.System research soil mercury pollution,mercury content of typical plant and ecological risk,which aimed at revealing the total mercury content,formation distribution of mercury and temporal and spatial distribution pattern in soil layer of the North Slop Economic Belt of Tianshan Mountain,clarifying the migration mechanism,transformation mechanism and temporal and spatial distribution pattern of mercury u

英文关键词： Economic Belt on the Northern Slope of the Tiansha；soil；heavy metals；risk assessment；