Global Stem Respiration Dataset archived release supporting Zhang et al., 2025

This archived release corresponds to the dataset underlying the published analyses in Zhang et al. (2025)(DOI: 10.1126/science.adr9978). For broader reuse and later data expansions, please refer to the separately deposited expanded release.This dataset compiles observation data on CO2 emission from woody plant stems, including 4627 data globally, 4155 temporal data on one site, and warming experiment data. These data files were analyzed to produce the statistics and figures reported in the paper about thermal acclimation of stem respiration.The data sources from (a) data from existing datasets (TRY database, which includes the Functional Ecology of Trees (FET) dataset, ECOCRAFT dataset, Global Respiration Dataset, and Tropical Respiration Dataset), (b) data digitized from publications (journal articles and book chapters from 1966 to present), (c) data provided by coauthors.The file “GSRD_global.csv” includes individual measurements of stem respiration rate (and other correlated traits) where species and site information were provided, and with sufficient information to be able to reasonably assign geographic coordinates, and thus climate data, for each sample. Each row represents an individual respiration rate datum, with each column reflecting a distinct variable including references, latitude and longitude, climate zones, species names (authorities), genus, family, group, plant functional types, measurement methods, average temperature during the growing season, average diameter at breast height, wood density, measured temperature, surface area-based stem respiration rate, mass-based stem respiration rate, and standardized mass-based stem respiration rate at 25 degrees Celsius. To ensure all the data were processed in the same way, this dataset excluded observations without stem diameter information. The measurements are from 67 sites worldwide on 186 species, and a total of 4627 observations for global analysis.The file “GSRD_seasonal.csv” includes 4155 observations of stem respiration rate for seasonal analysis, including the species black spruce, aspen and jack pine. Lavigne and Ryan measured stem respiration during the 1994 growing season at eight sites with contrasting climates. Here is a subset including data from one site near the northern boundary of the boreal region, close to Thompson, Manitoba (55.90°N, 98.75°W), where measurements were made between May to September 1994.The file “GSRD_warmingExp.csv” includes data from a warming experiment conducted by Smith et al.. They examined the thermal acclimation of stem respiration in individuals of five different woody species acclimated to five temperatures: 15, 20, 25, 30, 35 degrees Celsius on each individual following a 7-day acclimation period.

本存档数据集对应Zhang等人（2025，DOI: 10.1126/science.adr9978）已发表分析所依托的数据集。为支持更广泛的复用及后续数据扩展，请参考另行存档的扩展版数据集。
本数据集汇编了木本植物茎部二氧化碳（CO₂）排放观测数据，包含全球范围的4627条观测记录、单站点的4155条时间序列数据，以及增温实验数据。上述数据经分析后，生成了论文中关于茎部呼吸热适应的统计结果与配图。
本数据集的数据来源分为三类：(a) 现有公开数据集（包括TRY数据库，其涵盖木本植物功能生态学（Functional Ecology of Trees, FET）数据集、ECOCRAFT数据集、全球呼吸数据集与热带呼吸数据集）；(b) 从1966年至今的期刊论文与图书章节等已发表文献中数字化提取的数据；(c) 合作作者提供的原始数据。
文件"GSRD_global.csv"包含茎部呼吸速率（及其他相关性状）的单条测量记录，其中附带物种与站点信息，且具备足够参数可合理推导每个样本的地理坐标与对应气候数据。每行代表一条独立的呼吸速率记录，各列对应不同变量，包括参考文献、纬度与经度、气候带、物种学名（含命名者）、属、科、类群、植物功能型、测量方法、生长季平均温度、平均胸径、木材密度、实测温度、基于表面积的茎部呼吸速率、基于质量的茎部呼吸速率，以及25摄氏度下的标准化质量基准茎部呼吸速率。为保证所有数据采用统一流程处理，本数据集剔除了未附带茎部直径信息的观测记录。该数据集的测量数据来自全球67个站点的186个物种，总计4627条观测记录用于全球尺度分析。
文件"GSRD_seasonal.csv"包含4155条茎部呼吸速率观测记录，用于季节动态分析，涵盖黑云杉、颤杨与北美短叶松等物种。Lavigne与Ryan于1994年生长季在8个气候差异显著的站点开展了茎部呼吸测量，本文件为其子集，包含位于北方针叶林区域北部边界附近、马尼托巴省汤普森市周边（55.90°N，98.75°W）的单站点数据，测量时间为1994年5月至9月。
文件"GSRD_warmingExp.csv"包含Smith等人开展的增温实验数据。他们针对5个不同木本物种的个体，设置了15、20、25、30、35摄氏度共5个温度梯度，经7天驯化期后，对其茎部呼吸的热适应特性进行了检测。

搜集汇总

背景与挑战

背景概述

Global Stem Respiration Dataset (GSRD) 是一个全球性的木本植物茎干呼吸数据集，包含4627个全球观测数据、4155个时间序列数据和升温实验数据。数据集来源于多个数据库和文献，覆盖67个站点的186个物种，用于研究茎干呼吸的热适应性和碳气候反馈。