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应用生态学报 ›› 1999, Vol. 10 ›› Issue (4): 423-426.

• 研究论文 • 上一篇    下一篇

有机物料对白浆土金属氧化物形态转化和迁移的影响及其肥力效应

吴龙华, 高子勤   

  1. 中国科学院沈阳应用生态研究所, 沈阳 110015
  • 收稿日期:1998-11-02 修回日期:1999-04-29 出版日期:1999-07-25 发布日期:1999-07-25
  • 通讯作者: 吴龙华,男,30岁,1997年获理学博士学位,现为中国科学院南京土壤研究所博士后,主要从事土壤与环境化学研究,已发表论文多篇.E-mail:lhwu@issas.ac.cn E-mail:lhwu@issas.ac.cn
  • 基金资助:

    国家“八五”科技攻关项目(85-005-01-04).

Effect of organic material on transformation and translocafion of metal oxide in albic soil and their impacts on soil fertility

Wu Longhua, Gao Ziqin   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1998-11-02 Revised:1999-04-29 Online:1999-07-25 Published:1999-07-25

摘要: 通过土柱淋溶试验研究了牧草粉腐解物对白浆土Fe、Mn、Al氧化物形态转化及剖面迁移的影响及其对土壤P素形态转化和有效性的影响。结果表明,加有机物料淋溶使土壤DTPA提取态或有机络合Fe、Mn、Al氧化物含量显着上升;有效磷含量也极显着上升,主要在于铝磷和铁磷含量的增加;白浆层土壤中有效态磷及无机磷各形态均随着腐熟牧草粉用量的加大而极显着地升高,表层土壤中有效态磷、铝磷、铁磷的变化也与加入的腐熟牧草粉极显着正相关。土壤有效态磷、铝磷、铁磷与DTPA提取态和有机络合态Fe、Mn显着或极显着相关,但在表层土壤磷素各形态与DTPA及焦磷酸钠提取的Al呈极显着负相关,而白浆层却是极显着正相关。

关键词: 有机物料, 氧化物, P, 白浆土

Abstract: Soil column experiment showed that in albic soil,DTPA or organochelated Fe, Mn and Al were significantly increased when decayed alfalfa powder was added. Soil available Pwas also enhanced,mainly due to the increase of soil aluminum and iron combined P (P-Al and P-Fe).In albic layer,soil available Pand four forms of inorganic Pwere all significantly positively correlated to the amount of added alfalfa powder,while in surface layer, only available P,P-Al and P-Fe were significantly positively correlated to the dose of organic material. Soil available P,P-Al and P-Fe were significantly correlated to DTPA or organo chelated Fe,Mn.The difference was in surface layer,their relationships were negative,while in albic layer, they were positive.

Key words: Organic material, Oxide, Phosphorus, Albic soil