成都市生态环境地球化学评价

【作者】 施泽明；

【导师】 倪师军； 张成江；

【作者基本信息】 成都理工大学 ， 地球化学， 2004， 硕士

【摘要】 随着城市化进程的加快，城市污染问题越来越受到人们的高度重视。迄今为止，城市地球化学的研究都是基于某一方面(例如大气，或土壤，或水体，或植物)的研究，缺乏城市系统整体配套研究，没有揭示元素在城市生态系统的迁移转化途径和规律。 本文从生态环境地球化学角度系统研究了成都市城市土壤、近地表大气尘、植物、水及水系沉积物中重金属的地球化学特征。查明了城市土壤、近地表大气尘、植物、水及水系沉积物中重金属元素空间上的分布特征；对照国家相关质量标准及国内外城市相关领域的研究成果，做了对比研究和生态环境质量评价。 在分块研究的基础上，进行了水—土壤—植物—近地表大气尘间元素的迁移转化及环境健康效应研究。初步探讨了重金属的污染来源及其在生态链中的迁移转化途径和规律。 通过本次研究为成都城市生态环境调控及城市的可持续发展提供了基础地球化学资料和科学决策依据，并为今后进一步深化城市生态研究奠定了坚实的基础。更多还原

【Abstract】 With the development of urbanization, the problem of urban pollution has been paid more attention. So far, the studies of urban geochemistry are based on one aspect of urban ecosystem (such as air, soil, water, plant), it lacks the study of whole urban ecosystem, and it doesn’t reveal the transfer track and rule of element.From the way of urban ecosystem geochemistry, this thesis systematically studies urban soil, air dust near the ground, plants, water and sediment, which has found out the spatial distribution characteristics of element in urban soil, air dust near the ground, plants, water and sediment .Comparison with relative national quality standards and international retative research field of urban, the thesis puts up the ecosystem geochemistry quality assessment of Chengdu.Based on the research of above, the thesis studies element transfer in the system of water -soil -plants -air dust. The thesis also studies the environmental health effect , it has primary studied the pollution source and element transfer track in urban ecosystem.The research offers basic geochemistry data and scientific decision-making gist in ChengDu urban ecosystem regulation and urban sustainable development, it has also established a steady groundwork in the study of urban ecosystem environment.更多还原