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Responses of Organic Phosphorus Fractionation to Environmental Conditions and Lake Evolution

机译:有机磷分级分离对环境条件和湖泊演化的响应

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摘要

Geochemical fractionation is used to assess the significance of environmental factors on organic phosphorus (OP) pools in sediments. Labile, moderately labile, and nonlabile OP pools in the sediments from Lake Hulun, Inner Mongolia, were fractionated, and their responses to environmental conditions and lake evolution were investigated based on the spatial and vertical distribution of OP fractionations. In light of the recalcitrant characteristics of organic matter (OM) in different environmental conditions, the pH presents significant negative effects on the amount of labile OP, while water depth shows an important role in regulating the distribution between the moderately labile and nonlabile OP pools. A latitudinal zonation in the distribution of OP pools in surface sediments from different lakes was apparent with this zonation likely linked to the gradient effects of climate and anthropogenic activities on OM decomposition and thereby on the sediments capacity to hold phosphorus. These results show that OM plays a role in governing the impacts of weather and environmental factors on OP fractionation in aquatic environments. This work suggests that OP pools in the sediment core could be used as an archive for environmental conditions and lake evolution.
机译:地球化学分馏用于评估沉积物中有机磷(OP)池中环境因素的重要性。对内蒙古呼伦湖沉积物中不稳定,中度不稳定和非不稳定的OP池进行分级,并根据OP分级的空间和垂直分布研究其对环境条件和湖泊演化的响应。鉴于在不同环境条件下有机物的顽强特性,pH值对不稳定的OP量表现出显着的负面影响,而水深在调节中等程度不稳定和非不稳定的OP池之间的分布方面发挥着重要作用。不同湖泊表层沉积物中OP池分布的纬度分区很明显,这种分区可能与气候和人为活动对OM分解的梯度效应有关,从而与沉积物的含磷量有关。这些结果表明,OM在控制天气和环境因素对水生环境中OP分级的影响中发挥了作用。这项工作表明,沉积物核心中的OP池可用作环境条件和湖泊演变的档案。

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  • 来源
    《Environmental Science & Technology》 |2016年第10期|5007-5016|共10页
  • 作者单位

    College of Environment and Resources, Inner Mongolia University, Huhhot 010021, China,Institute of Environmental Geology, Inner Mongolia University, Huhhot 010021, China,Department of Chemistry, University of Oslo, N-0315, Oslo, Norway;

    Forestry College, Inner Mongolia Agricultural University, Huhhot 010019, China;

    College of Environment and Resources, Inner Mongolia University, Huhhot 010021, China,Institute of Environmental Geology, Inner Mongolia University, Huhhot 010021, China;

    Department of Chemistry, University of Oslo, N-0315, Oslo, Norway;

    Department of Chemistry, University of Oslo, N-0315, Oslo, Norway,Tianjin Academy of Environmental Sciences, Tianjin, 300191, China;

    College of Environment and Resources, Inner Mongolia University, Huhhot 010021, China;

    College of Environment and Resources, Inner Mongolia University, Huhhot 010021, China;

    College of Environment and Resources, Inner Mongolia University, Huhhot 010021, China;

    College of Environment and Resources, Inner Mongolia University, Huhhot 010021, China;

    College of Environment and Resources, Inner Mongolia University, Huhhot 010021, China;

    College of Environment and Resources, Inner Mongolia University, Huhhot 010021, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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