数字农科院2.0

Long-Term Fertilization Influencing Agricultural Diffuse Heavy Metal Pollution And Its Environmental Threat To A Coastal City, Qingdao, East China

文献类型： 外文期刊

作者： Wang, FL; Yan, TZ; Zong, HY; Li, SJ; Liu, J; Liu, Y; Hou, XS

作者机构：

关键词： Agricultural Diffuse Pollution; Heavy Metal; Long-Term Fertilizaiton; Livestock Farming Discharges; Environmental Threat

期刊名称： FRESENIUS ENVIRONMENTAL BULLETIN

ISSN： 1018-4619

年卷期： 2020 年 29 卷 7 期

页码：

收录情况： JCR（2021版）

摘要： The problem of diffuse heavy metal pollution due to improper fertilization causes great pressure on the environment. This study investigated the total heavy metal loss originated from nitrogen fertilizer, phosphate fertilizer and livestock and poultry manure in Qingdao. The diffuse heavy metal pollution loss load was estimated. The results showed that As, Cd, Cr, Hg and Pb in the phosphate fertilizer led the pollution level of more than 80 percent areas in Qingdao a higher than the IV level (serious threat). Cu and Zn in animal mature induced the pollution level of the whole Qingdao a higher than the IV level (serious threat), while Cr, Hg and Pb led that of more than 60 percent areas in Qingdao a higher than the II level (slight threat). The seven heavy metals in nitrogenous fertilizer lead the lowest pollution level of Qingdao. Forty percent of the loss of heavy metal in nitrogenous fertilizer and phosphate fertilizer decreased from 2007 to 2017, when the loss of heavy metal in animal mature made the greatest contribution to the pollution load in Qingdao.

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