亚洲一区欧美在线,日韩欧美视频免费观看,色戒的三场床戏分别是在几段,欧美日韩国产在线人成

PAM與粉煤灰改良沙土中重金屬的遷移和富集規(guī)律
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國土資源部公益基金資助項目(201011016-9)


Metal Transportation and Accumulation in Sandy Soil Amended by Fly Ash and PAM
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    探討復(fù)合施用聚丙烯酰胺（PAM）和粉煤灰改良沙土?xí)r，重金屬（以Cr、As、Ni為例）在土壤、植物當(dāng)中的運移規(guī)律，以及PAM在粉煤灰改良土壤中對重金屬運移規(guī)律的影響。采取田間小區(qū)試驗的方法，設(shè)計3種PAM施用量（0、60和120mg/kg）和4種粉煤灰施用量（0、5%、10%和15%），其中不添加PAM和粉煤灰的處理為對照。試驗結(jié)果表明：添加粉煤灰后，表層沙土當(dāng)中Cr、Ni元素含量增加，而粉煤灰施用量為15%時As元素含量減少。在粉煤灰改良土壤中添加PAM能夠?qū)⒏嘀亟饘俟潭ㄔ谕寥辣韺?，從而抑制重金屬的淋洗，同時減少玉米對Cr、As、Ni的吸收。

    Abstract:

    Polyacrylamide (PAM) was added to fly ash to amend sandy soil. The migration of heavy metals, such as Cr, As and Ni in soil-plant system and the influence of PAM on it were investigated, respectively. The experimental design included three PAM application rates (0, 60mg/kg and 120mg/kg) and four fly ash application rates (0, 5%, 10% and 15%). The treatment without fly ash and PAM was prepared as a control. The results showed that the addition of fly ash increased the concentrations of Cr and Ni in the surface sandy soil, while there was a decline in As concentration at high fly ash application rates (15%). The addition of PAM could stabilize a large quantity of heavy metals within topsoil to control their leaching risk as well as reduce the amounts of Cr, As and Ni absorbed by corn.

    參考文獻
    相似文獻
    引證文獻
引用本文

趙智,唐澤軍,楊凱,劉景奇,許理. PAM與粉煤灰改良沙土中重金屬的遷移和富集規(guī)律[J].農(nóng)業(yè)機械學(xué)報,2013,44(7):83-89. Zhao Zhi, Tang Zejun, Yang Kai, Liu Jingqi, Xu Li. Metal Transportation and Accumulation in Sandy Soil Amended by Fly Ash and PAM[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(7):83-89.

復(fù)制
分享
文章指標(biāo)
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2013-06-20
  • 出版日期: