天堂国产午夜亚洲专区-少妇人妻综合久久蜜臀-国产成人户外露出视频在线-国产91传媒一区二区三区

杭州市典型設(shè)施栽培土壤環(huán)境質(zhì)量調(diào)查

發(fā)布時間:2018-04-02 02:10

  本文選題:設(shè)施栽培 切入點:土壤環(huán)境質(zhì)量 出處:《浙江農(nóng)業(yè)學(xué)報》2017年12期


【摘要】:為了解杭州市設(shè)施栽培土壤的環(huán)境質(zhì)量狀況,選擇27個代表性設(shè)施栽培蔬菜基地,采樣分析了表層土壤中8種重金屬、8種抗生素的含量,并與鄰近的一般大田進行比較。結(jié)果表明,設(shè)施栽培土壤中銅、鋅、鎘、鉛的平均含量分別比大田土壤高17.28%、18.36%、25.00%和17.82%,8種抗生素總量的平均值是大田土壤的4.91倍,表明設(shè)施栽培土壤中重金屬、抗生素積累普遍高于一般大田。施用化肥和有機肥的設(shè)施栽培土壤中銅、鋅、鉻、鉛、汞、砷的平均含量分別比只施用化肥的設(shè)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種抗生素總量的平均值為后者的6.67倍。施用含重金屬和抗生素的有機肥是導(dǎo)致設(shè)施栽培土壤污染物積累的重要原因之一。
[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.
【作者單位】: 桐廬縣農(nóng)業(yè)和林業(yè)技術(shù)推廣中心;杭州市植保土肥總站;浙江大學(xué)環(huán)境與資源學(xué)院;
【基金】:浙江省農(nóng)業(yè)廳“桐廬縣農(nóng)業(yè)‘兩區(qū)’土壤污染治理試點試驗” 杭州市科技發(fā)展計劃項目(20170432B23)
【分類號】:S159;S316
,

本文編號:1698306

資料下載
論文發(fā)表

本文鏈接:http://sikaile.net/kejilunwen/nykj/1698306.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權(quán)申明:資料由用戶90f8e***提供,本站僅收錄摘要或目錄,作者需要刪除請E-mail郵箱bigeng88@qq.com