Methane Fluxes and 13C-CH4 from a Northern Temperate Peatland

This dataset contains methane (CH₄) emissions and their ¹³C isotope composition (δ¹³C-CH₄) measured using the static flux chamber method in a poor fen in New Hampshire, USA. Measurements were collected weekly (CH₄ emissions) to bi-weekly (δ¹³C-CH₄) from flux collars with varying microtopgraphy (hummock, lawn, and wet) from May to August 2020 and 2021. Datasets includes metadata of water table depth, peat and air temperature, and precipitation collected alongside flux meausurements. Each data file contains a "README" tab with a guide for variable units and descriptions.本数据集收录了美国新罕布什尔州一处贫营养泥炭沼泽（poor fen）中，采用静态通量箱法（static flux chamber method）测得的甲烷（methane, CH₄）排放数据，及其对应的¹³C同位素组成（δ¹³C-CH₄）。本次测量的对象为搭载不同微地形（microtopography）的通量环（flux collars），涵盖丘状（hummock）、草甸状（lawn）与湿生（wet）三类微地形；采样频率上，甲烷排放数据为每周采集1次，碳同位素组成数据为每两周采集1次，采样时段覆盖2020年与2021年的5月至8月。数据集同步收录了与通量测量同期采集的元数据，包括地下水位埋深、泥炭温度、空气温度及降水量。每个数据文件均包含"README"标签页，内附变量单位与参数说明指南。