杭州市典型设施栽培土壤环境质量调查

发布时间：2018-04-02 02:10

  本文选题：设施栽培　切入点：土壤环境质量　出处：《浙江农业学报》2017年12期

【摘要】：为了解杭州市设施栽培土壤的环境质量状况,选择27个代表性设施栽培蔬菜基地,采样分析了表层土壤中8种重金属、8种抗生素的含量,并与邻近的一般大田进行比较。结果表明,设施栽培土壤中铜、锌、镉、铅的平均含量分别比大田土壤高17.28%、18.36%、25.00%和17.82%,8种抗生素总量的平均值是大田土壤的4.91倍,表明设施栽培土壤中重金属、抗生素积累普遍高于一般大田。施用化肥和有机肥的设施栽培土壤中铜、锌、铬、铅、汞、砷的平均含量分别比只施用化肥的设施栽培土壤高54.86%、26.76%、16.80%、14.36%、50.56%和9.63%,且前者土壤中8种抗生素总量的平均值为后者的6.67倍。施用含重金属和抗生素的有机肥是导致设施栽培土壤污染物积累的重要原因之一。
[Abstract]:In order to understand the environmental quality of cultivated soils in Hangzhou, 27 representative vegetable cultivation bases were selected to sample and analyze the contents of 8 kinds of heavy metals and 8 kinds of antibiotics in the topsoil.The results showed that the average contents of Cu, Zn, CD and Pb in protected soil were 17.28% higher than those in field soil, 25.00% and 17.82%, respectively, which were 4.91 times higher than those in field soil.The accumulation of antibiotics was generally higher than that in general field.The average contents of Cu, Zn, Cr, Pb, Hg and as in the greenhouse soil with chemical fertilizer and organic fertilizer were 54.86% and 9.63% respectively higher than those in the soil with only chemical fertilizer. The average value of the total amount of 8 antibiotics in the former soil was 6.67 times higher than that in the latter.The application of organic manure containing heavy metals and antibiotics is one of the important reasons that lead to the accumulation of pollutants in the soil.
【作者单位】： 桐庐县农业和林业技术推广中心;杭州市植保土肥总站;浙江大学环境与资源学院;
【基金】：浙江省农业厅“桐庐县农业‘两区’土壤污染治理试点试验” 杭州市科技发展计划项目(20170432B23)
【分类号】：S159;S316
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本文编号：1698306