| 济南市土壤元素地球化学特征及环境质量 |
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| 引用本文： | 代杰瑞,祝德成,庞绪贵,杨丽芝,彭观峰,宁振国.济南市土壤元素地球化学特征及环境质量[J].中国地质,2015(1):308-316. |
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| 作者姓名： | 代杰瑞 祝德成 庞绪贵 杨丽芝 彭观峰 宁振国 |
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| 作者单位： | 山东省地质调查院，山东 济南250013 |
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| 基金项目： | 部省合作项目（1212010310306）资助。 |
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| 摘 要： | 以济南市土壤为研究对象,采用R-2.6.1程序、半方差函数模型和因子分析法对区内土壤元素含量统计特征、结构特征和分布特征进行了分析研究,并对土壤环境质量进行评价。结果表明:研究区土壤中多数元素含量总体受自然空间格局控制,但人类活动对市区土壤Cd、Hg、Pb、Se、As、p H值等元素(指标)含量有明显影响,表层土壤p H值呈现从外围向市区中心增加的碱化趋势;盛行风向对表层土壤重金属的分布叠加也产生影响,沿顺风向产生漂移。受人类活动(主要为工业污染)历史长短及强度的不同,济南市区、历城区和章丘市总体为轻度污染,局部存在Hg、Cu、Cr、Cd等中度或重度污染,污染区分布与各类工业空间布局相吻合,而长清、济阳土壤环境质量较好,总体属警戒限级。按土壤综合污染指数排序,土壤综合环境质量从优到劣为济阳长清章丘历城市区。
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| 关 键 词： | 土壤 因子分析 分布特征 环境质量 济南市 |
Geochemical characteristics and environmental quality of soil elements in Jinan City |
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| DAI Jie-rui,ZHU De-cheng,PANG Xu-gui,YANG Li-zhi,PENG Guan-feng,NING Zhen-guo.Geochemical characteristics and environmental quality of soil elements in Jinan City[J].Chinese Geology,2015(1):308-316. |
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| Authors: | DAI Jie-rui ZHU De-cheng PANG Xu-gui YANG Li-zhi PENG Guan-feng NING Zhen-guo |
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| Institution: | Shandong Institute of Geological Survey, Jinan 250013, Shandong, China |
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| Abstract: | Abstract: Taking the soil of Jinan as the study object, the authors used software R?2.6.1, semivariance function model and factor analysis methods to study the characteristics, structures and distribution of elements content, and evaluated soil environment quality. According to the results achieved, the majority of soil elements in the study area are controlled by natural factors; nevertheless, indicators like Cd, Hg, Pb, Se, As and pH in urban soils are impacted by human activities significantly, pH values in surface soil exhibit an increasing trend (alkalization trend) from the periphery to the urban center, and prevailing wind, which drifts in the downwind direction, also has an impact on the distribution superimposition of heavy metals in surface soils. Influenced by different time spans and intensities of human activities (mainly industrial pollution), the soil environment quality of Jinan urban area, Licheng district and Zhangqiu are generally lightly polluted, with local areas moderately or severely polluted by Hg, Cu, Cr, Cd, and the pattern of the pollution distribution is consistent with the layout of the industrial areas; however, the soil environmental quality of Changqing and Jiyang are farily good, generally within the warning limits. According to the soil comprehensive environmental quality indices, the soil quality becomes gradually worsen in order of Jiyang (0.73), Changqing (0.82), Zhangqiu (0.95), Licheng (1.03), urban area (1.10). |
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| Keywords: | soil factor analysis distribution characteristics environment quality Jinan City |
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