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巢湖沉积物中有机磷的生物可利用性研究

卢艳敏 张靖天 张新波 肖喆 许晓玲 霍守亮

卢艳敏, 张靖天, 张新波, 肖喆, 许晓玲, 霍守亮. 巢湖沉积物中有机磷的生物可利用性研究[J]. 环境工程技术学报, 2020, 10(2): 197-204. doi: 10.12153/j.issn.1674-991X.20190125
引用本文: 卢艳敏, 张靖天, 张新波, 肖喆, 许晓玲, 霍守亮. 巢湖沉积物中有机磷的生物可利用性研究[J]. 环境工程技术学报, 2020, 10(2): 197-204. doi: 10.12153/j.issn.1674-991X.20190125
LU Yanmin, ZHANG Jingtian, ZHANG Xinbo, XIAO Zhe, XU Xiaoling, HUO Shouliang. Bioavailability of organic phosphorus in Lake Chaohu sediments[J]. Journal of Environmental Engineering Technology, 2020, 10(2): 197-204. doi: 10.12153/j.issn.1674-991X.20190125
Citation: LU Yanmin, ZHANG Jingtian, ZHANG Xinbo, XIAO Zhe, XU Xiaoling, HUO Shouliang. Bioavailability of organic phosphorus in Lake Chaohu sediments[J]. Journal of Environmental Engineering Technology, 2020, 10(2): 197-204. doi: 10.12153/j.issn.1674-991X.20190125

巢湖沉积物中有机磷的生物可利用性研究

doi: 10.12153/j.issn.1674-991X.20190125
详细信息
    作者简介:

    卢艳敏(1995—),女,硕士研究生,主要研究方向为湖泊富营养化控制,luyanmin2013@163.com

    通讯作者:

    张新波 E-mail: zxbcj2006@126.com

  • 中图分类号: X524

Bioavailability of organic phosphorus in Lake Chaohu sediments

More Information
    Corresponding author: Xinbo ZHANG E-mail: zxbcj2006@126.com
  • 摘要: 沉积物中有机磷通过转化为无机磷被藻类利用,加速水体富营养化进程。采集巢湖沉积物柱状样品,用Ivanoff连续提取法分级提取不同深度沉积物中有机磷,测定了沉积物中碱性磷酸酶的活性,并研究了碱性磷酸酶对沉积物中碳酸氢钠提取态有机磷(NaHCO3-Po)、盐酸提取态有机磷(HCl-Po)、氢氧化钠提取态有机磷(NaOH-Po)的水解效果。结果表明:东半湖区C14采样点的有机磷浓度高于西半湖区C4采样点,C4采样点NaOH-Po、HCl-Po、NaHCO3-Po和残渣态-Po浓度占总有机磷浓度的比例分别为41.70%、12.82%、11.05%和2.22%,C14采样点分别为43.75%、19.00%、6.12%和 4.22%,2个采样点不同形态有机磷浓度均为NaOH-Po>HCl-Po>NaHCO3-Po>残渣态-Po;C4采样点的碱性磷酸酶活性高于C14采样点,这与西半湖区富营养化程度较高有关;NaHCO3-Po、HCl-Po、NaOH-Po均能被碱性磷酸酶水解,C4和C14采样点表层沉积物中各形态有机磷的水解比例显著高于下层沉积物,说明人类活动产生的有机磷生物可利用性较高,其中,以简单小分子化合物为主的NaHCO3-Po被水解的比例最高,为65.78%~69.47%。

     

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  • 收稿日期:  2019-07-15
  • 刊出日期:  2020-03-20

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