| 上海市土壤中持久性毒害污染物和盐分含量特征研究 |
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| 作者姓名： | SHI Gui-Tao CHEN Zhen-Lou XU Shi-Yuan YAO Chun-Xi BI Chun-Juan WANG Li |
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| 作者单位： | SHI Gui-Tao(Key Laboratory of Geographic Information Science of Ministry of Education,East China Normal University,Shanghai 200062 China;Polar Research Institute of China,Shanghai 200136 China);CHEN Zhen-Lou,XU Shi-Yuan,YAO Chun-Xia,BI Chun-Juan,WANG Li(Key Laboratory of Geographic Information Science of Ministry of Education,East China Normal University,Shanghai 200062 China) |
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| 基金项目： | the National Natural Science Foundation of China，the National Maritime Bureau of China，the Shanghai Tongji Gao Tingyao Environmental Science and Technology Development Foundation of China |
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| 摘 要： | Some farmland soils in Shanghai had high salinity levels, suggesting secondary salinization of the soils. The soil problems in Shanghai were studied, including the salinity and nitrate nitrogen (NO3--N) concentrations, heavy metal pollution characteristics, and organochlorine pesticide (OCP) residual levels and polycyclic aromatic hydrocarbon (PAH) contents. Accumulation of NO3--N in vegetable soils was the most significant among different functional soils. Heavy metal pollution was significant in the samples collected from the sewage-irrigated land and roadside. The identification of the metal sources through multivariate statistical analysis indicated that Pb, Zn, Cu and Cr in urban soils were from the traffic pollutants; excessive application of fertilizer and irrigation were the main reasons for the metal pollution in agricultural soils; Ni in the observed soils was controlled by parent soils. OCPs could still be detected in farmland soils but degraded greatly in last 20 years after prohibition of their usage. PAHs with 2-3 rings were the main components in industrial soils. The concentrated PAHs in the investigated soils were likely from petroleum and coal combustion.
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| 关 键 词： | heavy metal OCP PAH salinity soil environment |
| 收稿时间： | 18 October 2008 |
Salinity and persistent toxic substances in soils from Shanghai, China |
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| SHI Gui-Tao,CHEN Zhen-Lou,XU Shi-Yuan,YAO Chun-Xi,BI Chun-Juan,WANG Li.Salinity and persistent toxic substances in soils from Shanghai, China[J].Pedosphere,2009,19(6):779-789. |
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| Authors: | SHI Gui-Tao CHEN Zhen-Lou XU Shi-Yuan YAO Chun-Xi BI Chun-Juan and WANG Li |
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| Institution: | Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China);Polar Research Institute of China, Shanghai 200136 (China);Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China);Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China);Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China);Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China);Key Laboratory of Geographic Information Science of Ministry of Education, East China Normal University, Shanghai 200062 (China) |
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| Abstract: | Some farmland soils in Shanghai had high salinity levels, suggesting secondary salinization of the soils. The soil problems in Shanghai were studied, including the salinity and nitrate nitrogen (NO3--N) concentrations, heavy metal pollution characteristics, and organochlorine pesticide (OCP) residual levels and polycyclic aromatic hydrocarbon (PAH) contents. Accumulation of NO3--N in vegetable soils was the most significant among different functional soils. Heavy metal pollution was significant in the samples collected from the sewage-irrigated land and roadside. The identification of the metal sources through multivariate statistical analysis indicated that Pb, Zn, Cu and Cr in urban soils were from the traffic pollutants; excessive application of fertilizer and irrigation were the main reasons for the metal pollution in agricultural soils; Ni in the observed soils was controlled by parent soils. OCPs could still be detected in farmland soils but degraded greatly in last 20 years after prohibition of their usage. PAHs with 2--3 rings were the main components in industrial soils. The concentrated PAHs in the investigated soils were likely from petroleum and coal combustion. |
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| Keywords: | heavy metal OCP PAH salinity soil environment |
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