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铝化合物控制土壤磷素流失的机理研究

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梁玉英, 黄益宗, 孟凡乔. 铝化合物控制土壤磷素流失的机理研究[J]. 环境化学, 2007, 26(2): 141-143.
引用本文: 梁玉英, 黄益宗, 孟凡乔. 铝化合物控制土壤磷素流失的机理研究[J]. 环境化学, 2007, 26(2): 141-143.
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LIANG Yu-ying, HUANG Yi-zong, MENG Fan-qiao. EFFECT OF ALUMINUM COMPOUNDS ON PHOSPHORUS RELEASE IN SOIL[J]. Environmental Chemistry, 2007, 26(2): 141-143.
Citation: LIANG Yu-ying, HUANG Yi-zong, MENG Fan-qiao. EFFECT OF ALUMINUM COMPOUNDS ON PHOSPHORUS RELEASE IN SOIL[J]. Environmental Chemistry, 2007, 26(2): 141-143.
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铝化合物控制土壤磷素流失的机理研究

  • 1.

    中国科学院生态环境研究中心, 北京, 100085;

  • 2.

    中国农业大学资源与环境学院, 北京, 100094

  • 基金项目:

    科技部863计划(2002AA601022-4)资助项目

EFFECT OF ALUMINUM COMPOUNDS ON PHOSPHORUS RELEASE IN SOIL

  • 1.

    Research Center for EcoEnvironmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China;

  • 2.

    College of Resource and Environment, Chinese Agricultural University, Beijing, 100094, China

  • Fund Project:

  • 摘要: 在实验室培养的基础上,研究不同铝化合物对土壤磷素流失的影响.结果表明:不同铝化合物均能抑制土壤中有效磷的释放,抑制效果的大小顺序为Al2(SO4)3(SOAL)>含SO42-聚合铝(SAL)>含Ca聚合铝(CAL)>纯聚合铝(PAL).施用量为405mgAl·kg-1时,培养3个月后SOAL,SAL,CAL和PAL可分别抑制35.0%,32.7%,31.5%和22.6%土壤中有效磷的释放.不同铝化合物抑制土壤有效磷释放的效果均随着试剂加入量的增加以及培养时间的延长而提高.添加不同铝化合物对土壤pH值的变化影响不大,土壤的pH值稍有下降.以上铝化合物均可用来抑制土壤磷的流失,从而降低磷素对环境的污染风险.
    Abstract: One of the main sources for non point sources phosphorus pollution is from farmland.Effect of different aluminum compounds on available phosphorus release in soil was conducted by incubation experiment. The results showed that different aluminum compounds could inhibit available P release from soil. The inhibitory effectiveness decreased with the order: Al2(SO4)3(SOAL)>polynuclear aluminum containing SO42-(SAL)>polynuclear aluminum containing Ca(CAL)>pure polynuclear aluminum(PAL).SOAL,SAL,CAL and PAL could respectively inhibit 35.0%, 32.7%, 31.5% and 22.6% available P release after incubation three month at the rate of 405 mg Al·kg-1. Available P concentrations in soil decreased with increasing the application rate of aluminum compounds and prolongation incubation time. Little changes of pH in soil were seen after aluminum compounds application. The results indicated that aluminum compounds could be used to decrease phosphorus loss from soils.
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    [2] Sharpley A N,Chapra S C,Wedeplhl R et al.,Managing Agricultural Phosphorus for Protection of Surface Waters:Issues and Options.Journal of Environmental Quality,1994,23:437-451
    [3] Daniel T C,Sharple A N,Lemunyon J L,Agricultural Phosphorus and Eutrophication:a Symposium Overview.Journal of Environmental Quality,1998,27:251-257
    [4] Lumunyon J L,Gilbert R G,The Concept and Need for a Phosphorus Assessment Tool.J.Prod.Agric.,1993,6:483-496
    [5] Sharley A N,Identifying Sites Vulnerable to Phosphorus Loss in Agricultural Runoff.Journal of Environmental Quality,1995,24:947-951
    [6] Zvomuya F,Rosen C J,Gupta S C,Phosphorus Sequestration by Chemical Amendments to Reduce Leaching from Wastewater Applications.Journal of Environmental Quality,2006,35(1):207-215
    [7] Stevenson F J,Cycles of Soil Carbon,Nitrogen,Phosphorus,Sulfur,and Micronutrients.New York:John Willey & Sons,1985:231-284
    [8] 李寿田,周健民,王火焰等,太湖水稻土中磷的固定和释放特性的研究.安徽农业大学学报,2003,30(2):123-127
    [9] Ryden J C,Mclaughlin J K,Time-Dependent Sorption of Phosphate by Soils and Hydrous Ferric Oxides.J.Soil Sci.,1977,28:585-595
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    [11] Sato S,Solomon D,Hyland C et al.,Phosphorus Speciation in Manure and Manure-Amended Soils Using XANES Spectroscopy.Environ.Sci.Technol.,2005,39:7485-7491
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  • 收稿日期:  2006-04-05

铝化合物控制土壤磷素流失的机理研究

  • 1.  中国科学院生态环境研究中心, 北京, 100085;
  • 2.  中国农业大学资源与环境学院, 北京, 100094
  • 收稿日期:  2006-04-05
基金项目:

科技部863计划(2002AA601022-4)资助项目

摘要: 在实验室培养的基础上,研究不同铝化合物对土壤磷素流失的影响.结果表明:不同铝化合物均能抑制土壤中有效磷的释放,抑制效果的大小顺序为Al2(SO4)3(SOAL)>含SO42-聚合铝(SAL)>含Ca聚合铝(CAL)>纯聚合铝(PAL).施用量为405mgAl·kg-1时,培养3个月后SOAL,SAL,CAL和PAL可分别抑制35.0%,32.7%,31.5%和22.6%土壤中有效磷的释放.不同铝化合物抑制土壤有效磷释放的效果均随着试剂加入量的增加以及培养时间的延长而提高.添加不同铝化合物对土壤pH值的变化影响不大,土壤的pH值稍有下降.以上铝化合物均可用来抑制土壤磷的流失,从而降低磷素对环境的污染风险.

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