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应用生态学报 ›› 1995, Vol. 6 ›› Issue (4): 397-400.

• 研究论文 • 上一篇    下一篇

外源痕量Zn进入土壤迁移转化的过程

邹邦基, 李书鼎, 朱玺   

  1. 中国科学院沈阳应用生态研究所陆地生态系统痕量物质生态过程开放实验室, 沈阳 110015
  • 收稿日期:1995-01-25 修回日期:1995-05-10 出版日期:1995-10-25 发布日期:1995-10-25
  • 基金资助:

    中国科学院陆地生态系统痕量物质生态过程开放实验室基金

Translocation and transformation of supplemented trace Zn in soil

Zou Bangji, Li Shuding, Zhu Xi   

  1. Laboratory of Ecological Process of Trace Substance in Terrestrial Ecosystem, Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1995-01-25 Revised:1995-05-10 Online:1995-10-25 Published:1995-10-25

摘要: 采用放射性核素示踪法和分级提取相结合的技术,研究了外源痕量Zn(65Zn)进入土壤迁移转化的过程。发现褐土中的65Zn在初始阶段其交换态和碳酸盐结合态最多,残余态最少;2周后碳酸盐结合态也大量转化为结晶氧化铁结合态和残余态;4个月后氧化锰结合态和结晶氧化铁结合态明显向残余态转化;6个月后仍有大量存在于较易变动的碳酸盐结合态和非结晶氧化铁结合态中。

关键词: 褐土, 外源痕量Zn(65Zn), 迁移转化过程, 南酸枣落叶阔叶林, 土壤磷, 地统计学, GIS技术, 空间异质性

Abstract: The translocation and transformation of supplemented trace Zn in drab soil is studied with radioactive isotope tracer and chemical fractional extraction methods.It is found that at initial stage, most of soil 65Zn is in exchangeable and carbonate bound forms, and less in residual form.In the following 2 weeks, carbonate bound form is largely transformed into CFeOX and RES forms.After 4 months, MnOX and CFeOX forms are tended to transform into RESform.6 months later, the bulk of 65Zn is still in the labiler CARB and AFeOX forms.

Key words: Drab soil, Supplemented trace 65Zn, Translocation and transformation, spatial heterogeneity, geo-satistics, GIS technique, soil phosphorus, Choerospondias axillaris deciduous broadleaved forest