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《Journal of Agro-Environment Science》 2010-03
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The Assessment on Available Contents of Cu, Zn and Mn in Soils of Sewage Irrigation in Taiyuan, China

LIU Xiao-juan1, XIE Jing-fang1, FAN Ren-jun2, MAO Yu-ting3, GUO Xiao-jun1, CUI Hong-li1 (1.College of Environment and Resource, Shanxi University, Taiyuan 030006, China; 2.Institute of Plant Protection, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, China; 3.Taiyuan Environment Monitoring Central Station, Taiyuan 030002, China)  
The purpose of this research is to study the effects of sewage irrigation on the available contents of Cu, Zn and Mn in the areas subject to sewage irrigation in Taiyuan. A total of 150 soil samples were collected from 4 typical sewage irrigation areas(the Districts of Xiaodian, Jiancaoping and Jinyuan, and the County of Qingxu). The available contents of Cu, Zn and Mn were measured with atomic absorption spectrophotometer. The analytical results showed consistently higher levels of Cu, Zn and Mn than those in recorded in previous literatures, most likely due to long-term application of sewage irrigation in these areas. The distribution level of available contents of Cu in soils was identified as:JinyuanXiaodianQingxuJiancaoping. Hierarchical analysis showed that the Cu concentration was at moderate level in most soil samples. For Zn, the distribution of soil available contents was:XiaodianJinyuanQingxuJiancaoping. It was noted that the Zn content varied from deficient to moderate levels in Xiaodian, while remaining low degree in the rest 3 areas. The available content of Mn was ranked as JinyuanQingxuJiancaopingXiaodian. Soil Mn showed the greatest variations in distribution in Taiyuan, varying from the low level at Xiaodian to high or even extremely high levels in the rest areas. It is summarized that the study areas are generally deficient of Zn, with moderate Cu and high Mn available contents.
【Fund】: 国家自然科学基金资助项目(30740037);; 太原市环保局资助项目
【CateGory Index】: X825
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