Calculated power from the oxidation of necromass that is produced in marine sediment on a global scale.

<p>This sheet contains data on calculated power from the oxidation of necromass that is produced in marine sediment on a global scale.</p>

<p>This project quantifies the role of microbial necromass and organic carbon as a power source to living microorganisms in marine sediments. The project utilizes a physiochemical model of marine sediment bioenergetics using data available in the literature and well-established modeling constructs. Data sources and model formulation are described in Bradley et al. 2018 (DOI: 10.1002/2017JG004186). For modelling South Pacific Gyre sediments, cell abundance and particulate organic carbon concentrations were determined for site U1370 (IODP Expedition 329) based on published analysis of extracted drill cores: D’Hondt et al. 2015 (DOI: 10.1038/ngeo2387); D’Hondt et al. 2011 (DOI: 10.2204/iodp.proc.329.2011). For modelling global cell abundance, we use the formulation described in Parkes et al. 2014 (DOI: 10.1016/j.margeo.2014.02.009).</p>

本数据集包含全球范围内海洋沉积物中产生的微生物残体（necromass）氧化反应所计算得到的功率数据。

本研究量化了海洋沉积物中微生物残体与有机碳作为活体微生物能量来源的作用。本研究利用已发表文献数据与成熟建模框架，构建了海洋沉积物生物能学的物理化学模型。数据来源与模型构建细节详见Bradley等人2018年发表的成果（DOI: 10.1002/2017JG004186）。针对南太平洋环流区沉积物的模拟，研究基于已发表的提取岩芯分析结果，确定了U1370站位（国际大洋发现计划（IODP） Expedition 329）的细胞丰度与颗粒有机碳浓度：D’Hondt等人2015年（DOI: 10.1038/ngeo2387）；D’Hondt等人2011年（DOI: 10.2204/iodp.proc.329.2011）。针对全球细胞丰度的模拟，本研究采用了Parkes等人2014年提出的建模公式（DOI: 10.1016/j.margeo.2014.02.009）。