Phosphorus Speciation and Release Law in Soil of Coal Mining Subsided Area

YAO Jianjian; GAO Liangmin; YAO Suping; YUAN Zhen; ZHOU Qinghong; YE Yuanyuan

doi:10.13961/j.cnki.stbctb.2015.02.008

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Phosphorus Speciation and Release Law in Soil of Coal Mining Subsided Area

- Phosphorus Speciation and Release Law in Soil of Coal Mining Subsided Area
- Bulletin of Soiland Water Conservation Vol. 35, Issue 2, Pages: 33-36(2015)
- 作者机构：
  
  1. 安徽理工大学地球与环境学院,安徽,淮南,232001
  2. 南京大学地球科学与工程学院,江苏,南京,210093
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.02.008
  CLC：
- Published：2015
- 稿件说明：
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YAO Jianjian, GAO Liangmin, YAO Suping, et al. Phosphorus Speciation and Release Law in Soil of Coal Mining Subsided Area[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 33-36.
DOI：

YAO Jianjian, GAO Liangmin, YAO Suping, et al. Phosphorus Speciation and Release Law in Soil of Coal Mining Subsided Area[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 33-36. DOI： 10.13961/j.cnki.stbctb.2015.02.008.

摘要

[目的] 对采煤塌陷区土壤中磷赋存形态以及释放规律进行研究

了解土壤磷污染特征。[方法] 以淮南矿区潘一矿塌陷区为研究对象

应用分级提取的方法对塌陷区土壤中磷的赋存形态进行分析测定

采用室内柱状样模拟实验对土壤中磷释放特征进行研究。[结果] (1)潘一杨庄塌陷区土壤TP的含量在103.58~489.89 mg/kg之间

平均值为248.47 mg/kg;(2)活性磷(BAP)的含量在86.94~378.24 mg/kg

占TP含量的43.53%~91.12%

平均为71.1%。(3)TP累计释放量大小依次为:pH=12 >pH=3 >pH=6 >pH=8 >pH=10 >pH=4。[结论] 采煤塌陷区土壤中TP有极高的释磷潜力;不同pH值条件下

磷的释放强度大小为:碱性>酸性>中性。

Abstract

[Objective] This paper mainly studied the phosphorus speciation and release law in the soil of coal mining subsided area

to know the phosphorus pollution characteristics.[Methods] Phosphorus content and fractions in the soil of NO.1 Panji subsided area were analyzed using sequential extraction method

and the release characteristics of phosphorus in the soil were studied using the columnar sample simulation experiment.[Results] (1) Total phosphorus(TP) content in the soil varied from 103.58 mg/kg to 489.89 mg/kg

and the average content was 248.47 mg/kg; (2) Bioavailable phosphorus(BAP) content varied from 86.94 mg/kg to 378.24 mg/kg

accounting for 43.53%~91.12% of TP; (3) The cumulative release quantity of TP was in the following order:pH=12 >pH=3 >pH=6 >pH=8 >pH=10 >pH=4.[Conclusion] High potentiality of phosphorus release had been discovered by the research of soil in coal mining subsided area. In different pH conditions

the releasing strength of phosphorus was ranked as:alkaline>acid>neutral.

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