ABoVE: Characterization of Carbon Dynamics in Burned Forest Plots, NWT, Canada, 2014

This record is for the dataset “ABoVE: Characterization of Carbon Dynamics in Burned Forest Plots, NWT, Canada, 2014” at <a href= "https://doi.org/10.3334/ORNLDAAC/1664">https://doi.org/10.3334/ORNLDAAC/1664</a>.
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This dataset provides field data from boreal forests in the Northwest Territories (NWT), Canada, that were burned by wildfires in 2014. During fieldwork in 2015, 211 burned plots were established. From these plots, thirty-two forest plots were selected that were dominated by black spruce and were representative of the full moisture gradient across the landscape, ranging from xeric to sub-hygric. Plot observations included slope, aspect, and moisture. At each plot, one intact organic soil profile associated with a specific burn depth was selected and analyzed for carbon content and radiocarbon (14C) values at specific profile depth increments to assess legacy carbon presence and combustion. Vegetation observations included tree density. Stand age at the time of the fire was determined from tree-ring counts. Estimates of pre-fire below and aboveground carbon pools were derived. The percent of total NWT wildfire burned area comprising of "young" stands (less than 60 years old at time of fire) was estimated. <p>
This data can be downloaded at <a href= "https://doi.org/10.3334/ORNLDAAC/1664">https://doi.org/10.3334/ORNLDAAC/1664</a>.

本记录对应数据集"ABoVE：加拿大西北地区2014年火烧森林样地碳动态特征"，访问链接为<a href="https://doi.org/10.3334/ORNLDAAC/1664">https://doi.org/10.3334/ORNLDAAC/1664</a>。

本数据集涵盖加拿大西北地区（Northwest Territories，简称NWT）2014年受野火侵袭的北方针叶林野外调查数据。2015年野外调查期间，共布设211个火烧样地。研究人员从中选取32个以黑云杉（black spruce）为优势种的样地，这些样地能够代表区域内从干旱到亚湿润的完整景观水分梯度。

样地观测内容包括坡度、坡向与土壤湿度。在每个样地中，选取一处与特定火烧深度对应的完整有机土壤剖面，按特定剖面深度分层分析其碳含量与放射性碳（radiocarbon，14C）值，以评估遗留碳的赋存情况与燃烧程度。植被观测内容包括树木密度。通过树木年轮计数可确定火灾发生时的林分年龄，进而估算火前地下与地上碳库储量。此外，研究人员还估算了NWT野火总过火面积中，火灾发生时树龄不足60年的"幼龄林分"所占比例。

本数据集可通过以下链接下载：<a href="https://doi.org/10.3334/ORNLDAAC/1664">https://doi.org/10.3334/ORNLDAAC/1664</a>。