气候变化领域集成服务门户(CCPortal): Sample site characteristics including mean SOC and SN for permafrost cores collected on Sobo-Sise Island and Bykovsky Peninsula

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.883582
	Sample site characteristics including mean SOC and SN for permafrost cores collected on Sobo-Sise Island and Bykovsky Peninsula
	Fuchs; Matthias; Grosse; Guido; Strauss; Jens; Günther; Frank; Grigoriev; Mikhail N; Maximov; Georgy M; Hugelius; Gustaf
发布日期	2017-11-27
数据集类型	dataset
英文简介	Ice rich Yedoma-dominated landscapes store considerable amounts of organic carbon (C) and nitrogen (N) and are vulnerable to degradation under climate warming. We investigate the C and N pools in two thermokarst-affected Yedoma landscapes - on Sobo-Sise Island and on Bykovsky Peninsula in the North of East Siberia. Soil cores up to three meters depth were collected along geomorphic gradients and analysed for organic C and N contents. A high vertical sampling density in the profiles allowed the calculation of C and N stocks for short soil column intervals and enhanced understanding of within-core parameter variability. Profile-level C and N stocks were scaled to the landscape level based on landform classifications from five-meter resolution, multispectral RapidEye satellite imagery. Mean landscape C and N storage in the first meter of soil for Sobo-Sise Island is estimated to be 20.2 kg C/m-2 and 1.8 kg N/m-2 and for Bykovsky Peninsula 25.9 kg C/m-2 and 2.2 kg N/m-2. Radiocarbon dating demonstrates the Holocene age of thermokarst basin deposits but also suggests the presence of thick Holocene aged cover layers which can reach up to two meters on top of intact Yedoma landforms. Reconstructed sedimentation rates of 0.10 mm/yr - 0.57 mm/yr suggest sustained mineral soil accumulation across all investigated landforms. Both Yedoma and thermokarst landforms are characterized by limited accumulation of organic soil layers (peat).
空间范围	Median Latitude: 72.181165 * Median Longitude: 128.674411 * South-bound Latitude: 71.800000 * West-bound Longitude: 127.969820 * North-bound Latitude: 72.540000 * East-bound Longitude: 129.325460
时间范围	2014-08-13T00:00:00 - 2014-09-01T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215284
推荐引用方式 GB/T 7714	Fuchs,Matthias,Grosse,et al. Sample site characteristics including mean SOC and SN for permafrost cores collected on Sobo-Sise Island and Bykovsky Peninsula.2017-11-27.https://doi.org/10.1594/PANGAEA.883582.