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Assessment of Porewater Discharge in a Mangrove Tidal Creek and Its Implications on Coastal Biogeochemical Cycles

机译:红树林潮汐溪流中孔隙水排放的评估及其对沿海生物地球化学循环的影响

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摘要

The objective of this research is to characterize the carbon and nutrient dynamics in a mangrove tidal creek and evaluate their importance at the coastal scale (Can Gio, Vietnam). Mangroves are highly productive ecosystems acting as natural carbon sinks but with an unclear role regarding nutrients. Although carbon sequestration in mangrove sediments is well described, less is known regarding the lateral tidal exchange of mangrove-derived material. In this study, the importance of porewater discharge to transfer organic and inorganic material from mangrove sediments to tidal creeks is examined. The tidal exchange of carbon to coastal waters and to the atmosphere as carbon dioxide is also investigated. Finally, the role mangroves play at the estuarine scale in a human-affected estuary is also addressed, regarding the nutrient dynamics. This study provides key findings related to fundamental ecosystem services mangroves provides such as climate regulation, water quality maintenance, and fishery resources.
机译:这项研究的目的是表征红树林潮汐小溪中的碳和养分动态,并评估其在沿海尺度上的重要性(Can Gio,越南)。红树林是高产的生态系统,可充当天然碳汇,但对养分的作用尚不清楚。尽管已经很好地描述了红树林沉积物中的碳固存,但是关于红树林衍生材料的横向潮汐交换却知之甚少。在这项研究中,检查了孔隙水排放对于将有机物和无机物从红树林沉积物转移到潮汐小溪中的重要性。还研究了碳向沿海水域和大气中作为二氧化碳的潮汐交换。最后,关于营养动态,还探讨了红树林在人类影响的河口中在河口尺度上所扮演的角色。这项研究提供了与红树林提供的基本生态系统服务有关的关键发现,如气候调节,水质维持和渔业资源。

著录项

  • 作者

    Taillardat, Pierre.;

  • 作者单位

    National University of Singapore (Singapore).;

  • 授予单位 National University of Singapore (Singapore).;
  • 学科 Biogeochemistry.;Hydrologic sciences.;Chemical oceanography.
  • 学位 Ph.D.
  • 年度 2018
  • 页码 224 p.
  • 总页数 224
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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