A drained nutrient-poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes

This README file was generated on 2024-03-15 by Cheuk Hei Marcus Tong. GENERAL INFORMATION 1\. Title of Dataset: A drained nutrient‐poor peatland forest in boreal Sweden constitutes a net carbon sink after integrating terrestrial and aquatic fluxes 2\. Dataset abstract: In this study, we estimated the net ecosystem carbon balance (NECB) from a nutrient‐poor drained peatland forest and an adjacent natural mire in northern Sweden by integrating terrestrial carbon dioxide (CO2) and methane (CH4) fluxes with aquatic losses of dissolved organic C (DOC) and inorganic C based on eddy covariance and stream discharge measurements, respectively, over two hydrological years. Each variable presented was measured during each experimental period in sites. 3\. Author Information A. Principal Investigator Contact Information Name: Cheuk Hei Marcus Tong Institution: Swedish University of Agricultural Sciences Address: Umeå, Sweden Email: [e-mail] 4\. Date of data collection (single date, range, approximate date): 2020-2022 5\. Geographic location of data collection: Hälsingfors, Västerbotten, Sweden 5\. Information about funding sources that supported the collection of the data: Swedish Research Council for Environment Agricultural Sciences and Spatial Planning, Award: 2016-01289, 2020-01446, 2017-00635; Stiftelsen Oscar och Lili Lamms Minne, Award: 2017.4.1-68; Knut and Alice Wallenberg Foundation, Award: 2018.0259; Kempe Foundation, Award: JCK.1712. SHARING/ACCESS INFORMATION 1\. Licenses/restrictions placed on the data: CC0 1.0 Universal (CC0 1.0) Public Domain 2\. Links to publications that cite or use the data: https://doi.org/10.1111/gcb.17246 3\. Links to other publicly accessible locations of the data: None 4\. Links/relationships to ancillary data sets: None 5\. Was data derived from another source? No A. If yes, list source(s): NA 6\. Recommended citation for this dataset: https://doi.org/10.5061/dryad.gqnk98sw5 DATA & FILE OVERVIEW 1\. File List: \|- Chamber data/ \|- Continuous environment data/ \| |- HDPF \| |- |- CR1000X_30min_2020_eddy_pro.csv \| |- |- CR1000X_30min_2021_eddy_pro.csv \| |- |- CR1000X_30min_2022_eddy_pro.csv \| |- Hälsingfors Mire \| |- |- Halsingfors_BIOMET_30min.csv \| |- |- UNITS_BIOMET_30min.csv \| Eddy Covariance data \| |- HDPF \| |- |- HDPF_Sparse forest_CO2_30min.txt \| |- |- HDPF_Dense forest_CO2_30min.txt \| |- |- HDPF_Combined forest area_CO2_30min.txt \| |- |- HDPF_CH4.xlsx \| |- Hälsingfors Mire \| |- |- Halsingfors_CH4_30min.txt \| |- |- Halsingfors_CO2_30min.txt 2\. Relationship between files, if important: None 3\. Additional related data collected that was not included in the current data package: None 4\. Are there multiple versions of the dataset? No A. If yes, name of file(s) that was updated: NA i. Why was the file updated? NA ii. When was the file updated? NA 5\. In all the files, empty cells are represented as “n/a”. \######################################################################### DATA-SPECIFIC INFORMATION FOR: |- Chamber data/ This includes all single chamber measurement data. The three sheets illustrate the data for the three separate years. Description of the columns can be found in description.xlsx. DATA-SPECIFIC INFORMATION FOR:|- Continuous environment data/ \| |- Continuous environment data/HDPF This folder includes three files separated into the three years. Each file includes half-hourly measurement of air temperature (Ta), relative humidity (RH), incoming shortwave radiation (Swin), outgoing shortwave radiation (SWout), incoming longwave radiation (Lwin), outgoing longwave radiation (LWout), photosynthetic photon flux density (PPFD) and the soil temperature (Ts), from Hälsingfors drained peatland forest (HDPF). The unit of the columns are listed in the second row. \| |- Continuous environment data/Hälsingfors Mire This folder includes the environmental data recorded from the Hälsingfors Mire during the study tears. The file includes two files: “Halsingfors_BIOMET_30min.csv” includes the half-hourly data; “UNITS_BIOMET_30min.csv” includes the description of each column of the half-hourly data. DATA-SPECIFIC INFORMATION FOR:| Eddy Covariance data \| |- Eddy Covariance data/HDPF The file “HDPF_Combined forest area_CO2_30min.txt” includes the original and the gapfilled CO2 flux data at HDPF. The partitioned data into sparse and dense forest are in “HDPF_Sparse forest_CO2_30min.txt” and “HDPF_Dense forest_CO2_30min.txt”, respectively. In these three files, the columns include year, day of year (DoY), hour, NEE, data source (whether it is gapfilled or original data), ecosystem respiration (Reco) and gross primary productivity (GPP_f). The units are included in the second row. All methane (CH4) data are stored in HDPF_CH4.xlsx. There are two sheets in the file, namely “daily mean” and “30 min raw filtered data”. In “daily mean”, the columns include year, day of year (DoY), flux from combined forest area (ug C m-2 h-1), sparse forest (ug C m-2 h-1) and dense forest (ug C m-2 h-1). The units are mentioned in the first row. In ““30 min raw filtered data”, the columns include year, DoY, hour, CH4 flux, and source. The units are mentioned in the second row. \| |- Eddy Covariance data/ Hälsingfors Mire The file “Halsingfors_CO2_30min.csv” has included the includes the original and the gapfilled CO2 flux data at Hälsingfors Mire. The columns include date time, NEE, data source (whether it is gapfilled or original data), ecosystem respiration (Reco) and gross primary productivity (GPP). The units are included in the first row. The file “Halsingfors_CH4_30min.csv” has included the includes the original and the gapfilled CH4 flux data at Hälsingfors Mire. The columns include date time, CH4 and data source (whether it is gapfilled or original data). The units are included in the first row. DATA-SPECIFIC INFORMATION FOR:| Dissolved carbon data The file “Discharge rate.xlsx” includes the daily mean discharge rate (in L s-1) in the sparse forest, dense forest and mire. The file “DOC DIC concentration.xlsx” includes the concentration of DOC and DIC based on each sampling measurement. The column includes the date, site name, “DOC_mg_l” (DOC concentration in mg L-1) and “DIC_mg_l” (DIC concentration in mg L-1).本README文件由Cheuk Hei Marcus Tong于2024年3月15日生成。 ## 通用信息 1. 数据集标题：瑞典北部寒带贫营养疏干泥炭地森林整合陆地与水生通量后为净碳汇 2. 数据集摘要：本研究通过涡度协方差（eddy covariance）与径流流量测量手段，整合了瑞典北部两处样地（一处为贫营养疏干泥炭地森林，另一处为相邻天然沼泽）的陆地二氧化碳（CO₂）、甲烷（CH₄）通量，以及溶解有机碳（dissolved organic C, DOC）与溶解无机碳（dissolved inorganic C, DIC）的水生流失量，估算了两个水文年期间的生态系统净碳平衡（net ecosystem carbon balance, NECB）。本研究所有变量均在实验周期内的样地中完成测量。 3. 作者信息 A. 项目负责人联系方式 姓名：Cheuk Hei Marcus Tong 所属机构：瑞典农业科学大学（Swedish University of Agricultural Sciences） 地址：瑞典于默奥 邮箱：[e-mail] 4. 数据采集日期：2020年-2022年 5. 数据采集地理区域：瑞典西博滕省哈尔辛福斯（Hälsingfors, Västerbotten, Sweden） 6. 资助信息：本数据采集工作受以下机构资助：瑞典环境、农业科学与空间规划研究理事会（Swedish Research Council for Environment Agricultural Sciences and Spatial Planning），资助编号：2016-01289、2020-01446、2017-00635；奥斯卡与莉莉·拉姆纪念基金会（Stiftelsen Oscar och Lili Lamms Minne），资助编号：2017.4.1-68；克努特与爱丽丝·瓦伦堡基金会（Knut and Alice Wallenberg Foundation），资助编号：2018.0259；肯普基金会（Kempe Foundation），资助编号：JCK.1712。 ## 共享与获取信息 1. 数据授权与使用限制：CC0 1.0通用（CC0 1.0）公共领域授权 2. 引用该数据集的文献链接：https://doi.org/10.1111/gcb.17246 3. 该数据集的其他公开获取途径：无 4. 辅助数据集关联关系：无 5. 本数据集是否源自其他数据源？否 A. 若是，请列出数据源：不适用 6. 本数据集推荐引用格式：https://doi.org/10.5061/dryad.gqnk98sw5 ## 数据与文件概览 1. 文件列表： |- 箱法测量数据/ |- 连续环境监测数据/ | |- 哈尔辛福斯疏干泥炭地森林（HDPF） | | |- CR1000X_30min_2020_eddy_pro.csv | | |- CR1000X_30min_2021_eddy_pro.csv | | |- CR1000X_30min_2022_eddy_pro.csv | |- 哈尔辛福斯沼泽 | | |- Halsingfors_BIOMET_30min.csv | | |- UNITS_BIOMET_30min.csv | 涡度协方差数据 | |- 哈尔辛福斯疏干泥炭地森林（HDPF） | | |- HDPF_Sparse forest_CO2_30min.txt | | |- HDPF_Dense forest_CO2_30min.txt | | |- HDPF_Combined forest area_CO2_30min.txt | | |- HDPF_CH4.xlsx | |- 哈尔辛福斯沼泽 | | |- Halsingfors_CH4_30min.txt | | |- Halsingfors_CO2_30min.txt 2. 文件间关联关系（若有重要关联）：无 3. 本次数据包未包含的额外采集相关数据：无 4. 本数据集是否存在多个版本？否 A. 若是，请列出更新后的文件名：不适用 i. 文件更新原因：不适用 ii. 文件更新时间：不适用 5. 所有文件中，空单元格均以“n/a”表示。 ######################################################################### ## 箱法测量数据专属说明 本文件夹包含所有单箱法测量数据，共三个工作表，分别对应三年的实验数据。各列的详细说明可参见description.xlsx文件。 ## 连续环境监测数据专属说明 | |- 连续环境监测数据/哈尔辛福斯疏干泥炭地森林（HDPF） 本文件夹包含分属三年的三份数据文件。每份文件均包含哈尔辛福斯疏干泥炭地森林（HDPF）的半小时级监测数据，涵盖气温（Ta）、相对湿度（RH）、入射短波辐射（Swin）、出射短波辐射（SWout）、入射长波辐射（Lwin）、出射长波辐射（LWout）、光合有效辐射量子通量密度（PPFD）以及土壤温度（Ts）。各列的单位列于第二行。 | |- 连续环境监测数据/哈尔辛福斯沼泽 本文件夹包含研究周期内哈尔辛福斯沼泽的环境监测数据，包含两份文件："Halsingfors_BIOMET_30min.csv"为半小时级监测数据；"UNITS_BIOMET_30min.csv"为该半小时级数据各列的说明文件。 ## 涡度协方差数据专属说明 | |- 涡度协方差数据/哈尔辛福斯疏干泥炭地森林（HDPF） 文件"HDPF_Combined forest area_CO2_30min.txt"包含哈尔辛福斯疏干泥炭地森林的原始与间隙填充后的二氧化碳（CO₂）通量数据。分为稀疏林与密林区的分区数据分别存储于"HDPF_Sparse forest_CO2_30min.txt"与"HDPF_Dense forest_CO2_30min.txt"中。上述三份文件的列信息依次为：年份、年积日（DoY）、时刻、净生态系统交换量（NEE）、数据来源（标注为原始数据或间隙填充数据）、生态系统呼吸量（Reco）以及总初级生产力（GPP_f）。各列单位列于第二行。 所有甲烷（CH₄）数据存储于"HDPF_CH4.xlsx"文件中，包含两个工作表："daily mean"（日均值数据）与"30 min raw filtered data"（半小时级原始滤波数据）。其中"daily mean"工作表的列信息依次为：年份、年积日（DoY）、全域森林面积的通量值（单位：μg C m⁻² h⁻¹）、稀疏林区通量值、密林区通量值，单位标注于第一行。"30 min raw filtered data"工作表的列信息依次为：年份、年积日（DoY）、时刻、甲烷通量、数据来源，单位标注于第二行。 | |- 涡度协方差数据/哈尔辛福斯沼泽 文件"Halsingfors_CO2_30min.csv"包含哈尔辛福斯沼泽的原始与间隙填充后的二氧化碳（CO₂）通量数据，列信息依次为：日期时间、净生态系统交换量（NEE）、数据来源、生态系统呼吸量（Reco）以及总初级生产力（GPP），单位标注于第一行。 文件"Halsingfors_CH4_30min.csv"包含哈尔辛福斯沼泽的原始与间隙填充后的甲烷（CH₄）通量数据，列信息依次为：日期时间、甲烷通量、数据来源，单位标注于第一行。 ## 溶解碳数据专属说明 文件"Discharge rate.xlsx"包含稀疏林、密林区与沼泽的日均径流量（单位：L s⁻¹）。文件"DOC DIC concentration.xlsx"包含各次采样测量得到的溶解有机碳（DOC）与溶解无机碳（DIC）浓度，列信息依次为：采样日期、样地名称、"DOC_mg_l"（DOC浓度，单位：mg L⁻¹）以及"DIC_mg_l"（DIC浓度，单位：mg L⁻¹）。