JRC Global Proxy Maps of Managed and Unmanaged Forest

The dataset provides maps of Managed and Unmanaged Forests at a global scale, with spatial resolutions of 5 km and 50 km. These maps serve as a proxy for countries' managed and non-managed forest areas, produced to support comparability between independent estimates and national Greenhouse Gas (GHG) reporting under the UNFCCC. The methodology uses country maps of managed forests where available, but also makes assumptions where official data is not present, employing independent datasets that may not be fully consistent with national forest definitions when no other options are available. Here, we present the version 1.0 (2024) of the “Global JRC Proxy Maps of Managed and Non-Managed Forests,” which is used to “translate” Bookkeeping Model results into national inventory definitions in the Global Carbon Budget 2024 (Friedlingstein et al., 2024). Country-level results of this translation are available through the Global Land Use Carbon Fluxes Data Hub: https://forest-observatory.ec.europa.eu/carbon/fluxes. This dataset will be updated as better information becomes available.本数据集提供全球尺度的经营林（Managed Forests）与非经营林（Unmanaged Forests）分布图，空间分辨率分别为5千米与50千米。该分布图可作为各国经营与非经营森林面积的替代数据，旨在提升独立估算结果与《联合国气候变化框架公约》（UNFCCC）框架下国家温室气体（GHG）报告的可比性。本数据集的编制方法优先采用现有国家经营林分布图；在缺乏官方数据的场景下，将通过合理假设完成估算，当无其他可选数据源时，则使用与国家森林定义可能不完全一致的独立数据集。 本次发布的为《全球欧盟联合研究中心（Joint Research Centre，JRC）经营与非经营林替代分布图》1.0版（2024年），该数据集用于将簿记模型（Bookkeeping Model）的计算结果转换为2024年全球碳预算（Global Carbon Budget，Friedlingstein等，2024）中的国家清单定义。该转换得到的国家级结果可通过全球土地利用碳通量数据中心获取：https://forest-observatory.ec.europa.eu/carbon/fluxes。本数据集将在获取到更完善的相关数据后予以更新。