Supporting data for Tradeoff of CO2 and CH4 emissions from global peatlands under water-table drawdown

• Main Authors: Yuanyuan Huang, Phillipe Ciais, Yiqi Luo, Zhu, Dan, Yingping Wang, Chunjing Qiu, Goll, Daniel S., Guenet, Bertrand, Makowski, David, Graaf, Inge De, Leifeld, Jens, Kwon, Min-Jung, Hu, Jing, Laiye Qu
• Format: Dataset
• Language: unknown
• Published: figshare 2020
• Subjects: 40104 Climate Change Processes; FOS Earth and related environmental sciences; Arctic; Climate change; Global warming
• Online Access: https://dx.doi.org/10.6084/m9.figshare.13139906.v1; https://figshare.com/articles/dataset/Supporting_data_for_Tradeoff_of_CO2_and_CH4_emissions_from_global_peatlands_under_water-table_drawdown/13139906/1

data_revision1.csv collects flux measurements from water table manipulation experiments listed in Reference.doc. site_chara_filled_revision1.csv collects site characteristics, soil, climate, management and topographic information. data_in_shape_permu_revision1.r is the script that combines previous two csv datasets and reorganize it into high-low water table pair for each flux. data_in_shape_permu_revision1.r generate files XXXX_ final_data_revision1.csv that are used in analysing and plotting. pred_nee_future_map_2020.py and pred_ch4_future_map_2020_long.py generate an ensemble gridded global prediction of future CO 2 and CH 4 in response to water table drawdown through machine learning models (random forest) trained by this collected water table manipulation experimental datasets. averagemap_uncertainty_nee.py and averagemap_uncertainty_ch4_long.py generate the mean and standard deviation from previous ensemble predictions. Scripts in Figure are used to generate figures in the main text and the supplementary information with FigureS referring to figures in supplementary information. delta_nee_wt_mean_std.nc and delta_ch4_long_wt_mean_std.nc are means and standard deviations of future CO 2 and CH 4 emissions in response to water table drawdown across the globe with RCP8.5, in unit of mg CO 2 -eq m -2 h -1 . We assume CH 4 has a global warming potential that is 25 times CO 2 over a 100-year time horizon. Note for site_chara_filled_revision1.csv WT: >0 below soil surface; <0 above soil surface Flux: positive sign = release gas to the atmosphere Manipulation length: s: within 1 year; m, 1-10 years; l, >10 years Arctic: North of 66.5N; Boreal, 50-66.5; Temperate, 30-50; tropical, -30 – 30 CH 4 , unit, µg m -2 h -1 CO 2 , unit, mg m -2 h -1