Literature synthesis and modelling data of terrestrial ecosystem responses to increasing atmospheric CO2

These data were collected in support of the cited publication, Walker et al. (Accepted) New Phytologist. The data are based on a literature survey and modelling using the Multi-Assumption Architecture and Testbed (MAAT). The literature survey data were extracted from key publications in the area of terrestrial ecosystem CO2 responses, and changes in terrestrial carbon storage. Data were digitised from tables, figures, and in the text of published manuscripts. All of these manuscripts are cited in the main text of Walker et al. (Accepted). These data cover a range of variables, from gross primary production (GPP), net primary production (NPP) or biomass production (BP), water use efficiency (WUE) of various types, vegetation mortality, soil organic matter decomposition, and various ecosystem carbon pools. The modelling data were all generated using MAAT v1.2.1_walker2020. The model output comprises net carbon assimilation, stomatal conductance, and leaf respiration at leaf and canopy scales in response to variation in atmospheric CO2. Digitised data can be found in "ICOFEST_CO2_response_data.xlsx" standardised response data (Beta) calculated from the digitised data are found in "Table_2.xlsx" (also provided in csv format). These data are in the published manuscript. Model data are found in MAAT output files (either csv, or RDS files where the data are substantial). For each run, XML files describe the model setup where it deviates from the default (which can be found in leaf_default.xml and canopy_default.xml in the MAAT repository (https://github.com/walkeranthonyp/MAAT). R code for synthedis and model data analysis and plotting are included in this dataset.

本数据集用于支撑Walker等人已被《New Phytologist》期刊接收的论文相关研究。数据集基于文献调研与多假设架构与测试平台（Multi-Assumption Architecture and Testbed，MAAT）建模构建。文献调研数据提取自陆地生态系统CO₂响应及陆地碳储量变化领域的核心学术文献，从已发表手稿的表格、插图及正文中数字化提取，所有上述手稿均已在Walker等人已接收论文的正文中引用。本数据集涵盖多类变量，包括总初级生产力（Gross Primary Production，GPP）、净初级生产力（Net Primary Production，NPP）或生物量生产力（Biomass Production，BP）、多种类型的水分利用效率（Water Use Efficiency，WUE）、植被死亡率、土壤有机质分解速率及各类生态系统碳库。建模数据均通过MAAT v1.2.1_walker2020生成，模型输出涵盖针对大气CO₂浓度变化的响应指标，包括净碳同化速率、气孔导度，以及叶片与冠层尺度的叶片呼吸速率。数字化后的数据存储于"ICOFEST_CO2_response_data.xlsx"中；由数字化数据标准化得到的测试版响应数据存储于"Table_2.xlsx"（同时提供CSV格式版本），该类数据已随已发表手稿一同发布。模型数据存储于MAAT输出文件中（数据量较大时采用CSV或RDS格式）。针对每次模型运行，XML文件会描述与默认设置存在差异的模型配置；默认设置可于MAAT仓库（https://github.com/walkeranthonyp/MAAT）中的leaf_default.xml与canopy_default.xml文件中获取。本数据集包含用于synthedis工具、模型数据分析与绘图的R代码。