Dataset of an in-situ 13C pulse labelling study on partitioning of newly assimilated C to CO2 and CH4 emission across phenology stages in a northern peatland

This dataset comes from an in situ 13C pulse-labeling study conducted at Degerö Stormyr, a northern peatland in Sweden. The study investigates how newly assimilated carbon is partitioned between CO2 and CH4 emissions across different plant functional groups and phenological stages. The dataset includes carbon isotope compositions of CO2 and CH4 fluxes, plant and moss tissues, and dissolved organic carbon (DOC), together with supporting environmental measurements such as air temperature and water table level.本数据集源自一处瑞典北部泥炭地——德格罗·斯托米尔（Degerö Stormyr）开展的一项原位13C脉冲标记（in situ 13C pulse-labeling）研究。该研究旨在探究不同植物功能群与物候阶段下，新同化碳如何在二氧化碳（CO₂）与甲烷（CH₄）排放间进行分配。 数据集涵盖二氧化碳（CO₂）与甲烷（CH₄）通量、植物及苔藓组织、溶解性有机碳（dissolved organic carbon，缩写DOC）的碳同位素组成数据，同时配套收录气温、地下水位等相关环境测量参数。