| 不同种植年限蔬菜大棚土壤特性、重金属累积和生态风险 |
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| 引用本文： | 任强,孙瑞玲,郑凯旋,刘祎丹,阮心玲,王洋洋.不同种植年限蔬菜大棚土壤特性、重金属累积和生态风险[J].环境科学,2022,43(2):995-1003. |
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| 作者姓名： | 任强 孙瑞玲 郑凯旋 刘祎丹 阮心玲 王洋洋 |
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| 作者单位： | 河南大学环境与规划国家级教学示范中心,开封475004;河南大学地理与环境学院,开封475004,河南省濮阳市生态环境局濮阳县分局,濮阳457100,河南大学环境与规划国家级教学示范中心,开封475004;河南大学地理与环境学院,开封475004;河南大学河南省土壤重金属污染控制与修复工程研究中心,开封475004 |
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| 基金项目： | 国家自然科学基金项目（51704093）；中国博士后科学基金项目（2020M682284）；河南省科技发展计划项目（212102310503）；河南省高校科技创新团队支持计划项目（21IRTSTHN008）；河南大学大学生创新创业训练计划项目（201910475097） |
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| 摘 要： | 以河南省汝州市杨楼镇蔬菜大棚土壤为研究对象,探究不同种植年限蔬菜大棚土壤理化性质、重金属总量和赋存形态的差异规律,并利用单项潜在生态风险指数法和综合潜在生态风险指数法对不同种植年限大棚土壤中重金属的潜在生态风险进行评估.结果 表明,与对照组相比,蔬菜大棚土壤pH均有所提高,有机质、速效磷和碱解氮等肥力组分有一定程度的累...
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| 关 键 词： | 种植年限 大棚土壤 重金属 形态 风险评估 |
| 收稿时间： | 2021/4/23 0:00:00 |
| 修稿时间： | 2021/7/11 0:00:00 |
Soil Properties, Heavy Metal Accumulation, and Ecological Risk in Vegetable Greenhouses of Different Planting Years |
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| REN Qiang,SUN Rui-ling,ZHENG Kai-xuan,LIU Yi-dan,RUAN Xin-ling,WANG Yang-yang.Soil Properties, Heavy Metal Accumulation, and Ecological Risk in Vegetable Greenhouses of Different Planting Years[J].Chinese Journal of Environmental Science,2022,43(2):995-1003. |
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| Authors: | REN Qiang SUN Rui-ling ZHENG Kai-xuan LIU Yi-dan RUAN Xin-ling WANG Yang-yang |
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| Institution: | National Demonstration Center for Environmental and Planning, Henan University, Kaifeng 475004, China;College of Geography and Environmental Science, Henan University, Kaifeng 475004, China;Bureau of Ecology and Environment of Puyang County Branch, Puyang 457100, China;National Demonstration Center for Environmental and Planning, Henan University, Kaifeng 475004, China;College of Geography and Environmental Science, Henan University, Kaifeng 475004, China;Henan Engineering Research Center for Control&Remediation of Soil Heavy Metal Pollution, Henan University, Kaifeng 475004, China |
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| Abstract: | The vegetable greenhouse soils in Yanglou Town, Ruzhou City, Henan Province were taken as the research object in the present study to explore the difference in soil physical and chemical properties and the total and fraction of heavy metals of different planting years. The potential ecological risks of heavy metals in greenhouse soils with different planting years were assessed by using single and comprehensive potential ecological risk index methods. The results showed that the soil pH of vegetable greenhouses increased, and fertility factors such as organic matter, available phosphorus, and alkali-hydrolyzable nitrogen accumulated to a certain extent compared to the control group, whereas catalase showed a decreasing trend. Correlation analysis showed that the planting years were significant positively correlated with pH (P<0.05) and organic matter (P<0.01) and significant negatively correlated with catalase (P<0.01). The amount of heavy metals in the vegetable greenhouse soils increased with the increase in planting years, among which Cu, Zn, and Cd increased most obviously, with maximum increases of 129.14%, 204.17%, and 161.11%, respectively. The proportion of acid-soluble and reducible heavy metals in the vegetable greenhouse soils also increased gradually with the planting years, and the proportion of residual heavy metals decreased correspondingly, which resulted in the heavy metals transforming into fractions easily absorbed by plants. The results of the single potential ecological risk index showed that Cd in vegetable greenhouse soils had a strong ecological risk with the increase in planting years, whereas Cu, Pb, Zn, and Ni were in the mild risk category. The comprehensive potential ecological risk index showed that the heavy metals in the vegetable greenhouse soils of different planting years have reached a strong or very strong ecological risk. |
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| Keywords: | planting years greenhouse soil heavy metals fraction risk assessment |
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