Properties and age-depth models of peat extracted from 102 locations in 12 Arctic peatlands during 2019-2022 for ICAAP: Increased Carbon Accumulation in Arctic Peatlands

Peat properties data and age depth models for 102 peat cores extracted and analysed for the Increased Carbon Accumulation in Arctic Peatlands (ICAAP) project (Grant NE/S001166/1). Peat cores were extracted from 12 peatland sites from four regions of the Arctic: Svalbard (78.09065°N 14.98407°E; 78.98595°N, 11.98246°E; and 78.95872°N, 11.68331°E), Norwegian and Finnish Lapland (70.11876°N, 28.48351°E; 69.80659°N, 27.19732°E; and 69.38787°N, 24.24123°E), Nunavut, Canada (72.655515°N, 78.061646°W; 72.694207°N, 77.864603°W; and 73.13028°N, 80.022987°W), and Quebec, Canada (62.165681°N, 75.915017°W; 62.123168°N, 75.769467°W; and 62.157355°N, 75.607301°W). Data originates from the analysis of Arctic peat cores for changes in rates of lateral expansion and vertical peat accumulation during recent centuries. Specifically, peat cores were analysed for moisture content (%), dry bulk density (g cm-3), C/N content (%), 210Pb activity levels (bq/kg), and 14C radiocarbon age (yr BP).

本数据集收录了针对北极地区增碳泥炭地（Increased Carbon Accumulation in Arctic Peatlands，简称ICAAP）项目（资助编号NE/S001166/1）所提取并分析的102个泥炭柱样本的泥炭性质数据及其年龄深度模型。这些泥炭柱样本分别来源于北极四个地区的12个泥炭地：斯瓦尔巴群岛（坐标：78.09065°N 14.98407°E；78.98595°N, 11.98246°E；以及78.95872°N, 11.68331°E）、挪威和芬兰拉普兰（坐标：70.11876°N, 28.48351°E；69.80659°N, 27.19732°E；以及69.38787°N, 24.24123°E）、加拿大努纳武特地区（坐标：72.655515°N, 78.061646°W；72.694207°N, 77.864603°W；以及73.13028°N, 80.022987°W）和加拿大魁北克省（坐标：62.165681°N, 75.915017°W；62.123168°N, 75.769467°W；以及62.157355°N, 75.607301°W）。数据源自对近年来北极泥炭柱样本中横向扩张速率和垂直泥炭积累率变化的分析。具体而言，对泥炭柱样本进行了水分含量（%）、干体积密度（g cm-3）、碳氮含量（%）、210Pb活动水平（bq/kg）以及14C放射性碳年龄（年BP）的分析。