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黄大湖沉积物营养盐分布及来源解析

马金玉 王文才 罗千里 李伟杰 罗艳 范中亚

马金玉, 王文才, 罗千里, 李伟杰, 罗艳, 范中亚. 黄大湖沉积物营养盐分布及来源解析[J]. 环境工程技术学报, 2021, 11(4): 678-685. doi: 10.12153/j.issn.1674-991X.20200257
引用本文: 马金玉, 王文才, 罗千里, 李伟杰, 罗艳, 范中亚. 黄大湖沉积物营养盐分布及来源解析[J]. 环境工程技术学报, 2021, 11(4): 678-685. doi: 10.12153/j.issn.1674-991X.20200257
MA Jinyu, WANG Wencai, LUO Qianli, LI Weijie, LUO Yan, FAN Zhongya. Distribution and source analysis of nutrients in sediments of Huangda Lake[J]. Journal of Environmental Engineering Technology, 2021, 11(4): 678-685. doi: 10.12153/j.issn.1674-991X.20200257
Citation: MA Jinyu, WANG Wencai, LUO Qianli, LI Weijie, LUO Yan, FAN Zhongya. Distribution and source analysis of nutrients in sediments of Huangda Lake[J]. Journal of Environmental Engineering Technology, 2021, 11(4): 678-685. doi: 10.12153/j.issn.1674-991X.20200257

黄大湖沉积物营养盐分布及来源解析

doi: 10.12153/j.issn.1674-991X.20200257
详细信息
    作者简介:

    马金玉(1995—),男,硕士研究生,主要从事湖泊营养盐迁移转化研究, 1960995373@qq.com

    通讯作者:

    罗艳 E-mail: maggiely2000@hotmail.com

    范中亚 E-mail: fanzhongya@scies.org

  • 中图分类号: X524

Distribution and source analysis of nutrients in sediments of Huangda Lake

More Information
    Corresponding author: LUO Yan E-mail: maggiely2000@hotmail.com; FAN Zhongya E-mail: fanzhongya@scies.org
  • 摘要: 在黄大湖设置13个采样点,采集表层及柱状沉积物样品,对沉积物中总氮(TN)、总磷(TP)和有机质(OM)浓度进行测定,分析黄大湖沉积物营养盐的空间及垂直分布,研究黄大湖沉积物营养盐来源,并对沉积物污染程度进行评价。结果表明:黄大湖表层沉积物中TN浓度为1 112~3 277 mg/kg,平均值为2 016 mg/kg;TP浓度为547.19~784.43 mg/kg,平均值为651.84 mg/kg;OM浓度为5.21%~11.21%,平均值为8.6%;TN、TP和OM浓度空间分布较为一致,主要表现为西北部>东南部>湖心中部,浓度垂直变化趋势总体表现为随深度增加而下降;沉积物中TN和OM污染比TP严重,且三者污染程度空间分布与浓度空间分布一致。Pearson相关性分析表明,TN和OM显著正相关,二者具有同源性;TP和OM无显著相关关系,二者同源性较差;沉积物中碳氮比(C/N)平均值为25.43,OM主要来自外源颗粒有机物的输入,柱状沉积物-20 cm以上碳磷比(C/P)和氮磷比(N/P)的增加表明沉积物中营养盐受近年来周边人类活动的影响较大。

     

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  • 收稿日期:  2020-10-26
  • 刊出日期:  2021-07-20

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