A dataset of 8-day carbon flux components observations for global terrestrial ecosystems during 1991–2023

Net ecosystem production (NEP), gross primary production (GPP), and ecosystem respiration (RECO) are key components of the terrestrial carbon cycle. Accurate measurement of these critical carbon flux parameters is essential for understanding the role of terrestrial ecosystems in the global carbon cycle. In this study, we utilized global flux observation datasets (FLUXNET2015) and regional carbon flux networks (AmeriFlux, EuroFlux, OzFlux, and ChinaFLUX) to process carbon flux data from diverse sources using rigorous quality screening criteria. A comprehensive global terrestrial ecosystem carbon flux observation dataset for the period 1991–2023 was developed. This dataset includes 8-day scale observations of NEP, GPP, and RECO from 392 sites across global terrestrial ecosystems spanning 1991–2023. Unified quality control standards and spatiotemporal synthesis methods were applied to ensure the consistency and reliability of the data. This dataset provides valuable scientific support for global carbon cycle research, model optimization, and analysis of ecosystem responses to climate change.

生态系统净生产力（Net ecosystem production, NEP）、总初级生产力（gross primary production, GPP）与生态系统呼吸（ecosystem respiration, RECO）是陆地碳循环的关键组成部分。精准测定这些关键碳通量参数，对于明晰陆地生态系统在全球碳循环中的作用至关重要。本研究依托全球通量观测数据集（FLUXNET2015）以及区域碳通量网络（AmeriFlux、EuroFlux、OzFlux与ChinaFLUX），采用严格的质量筛选标准对多源碳通量数据进行处理，最终构建了一套覆盖1991-2023年的全球陆地生态系统碳通量综合观测数据集。该数据集包含全球陆地生态系统392个观测站点在1991-2023年间的8天尺度NEP、GPP与RECO观测数据。本研究采用统一的质量控制标准与时空合成方法，以保障数据的一致性与可靠性。该数据集可为全球碳循环研究、模型优化以及生态系统对气候变化的响应分析提供重要的科学支撑。

搜集汇总

背景与挑战

背景概述

该数据集提供了1991-2023年全球陆地生态系统392个站点的8天尺度碳通量观测数据，包括NEP、GPP和RECO等关键参数，数据来源于FLUXNET2015和多个区域网络，经过严格质量控制，适用于全球碳循环研究和气候变化分析。