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LULUCFデータハブ:全球土地利用排出推計を国別GHGインベントリ枠組みへ翻訳(バージョン4.0.0、2026年NGHGIリリース)

The LULUCF Data Hub: translating global land use emissions estimates into the national GHG inventory framework (Version 4.0.0, 2026 NGHGI release) (原題)

Melo, Joana, Rossi, Simone, Achard, Frédéric, Alkama, Ramdane, Canadell, Josep G., Federici, Sandro, Friedlingstein, Pierre, Gibbs, David, Harris, Nancy, Heinrich, Viola, O'Sullivan, Michael, Peters, Glen, Pongratz, Julia, Rose, Melissa, Roman-Cuesta, Rosa, Sanz Sanchez, Maria Jose, Schwingshackl, Clemens, Sitch, Stephen, Grassi, Giacomo

Zenodoデータセット2026-09-18#炭素会計Origin: EU対象セクター: agriculture
DOI: 10.5281/zenodo.22828743
原典: https://zenodo.org/records/22828743
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🤖 gxceed AI 要約

日本語

EU森林観測所が運営するLULUCFデータハブのバージョン4.0.0を記述。UNFCCCに提出された197カ国の国別GHGインベントリ(NGHGI)のLULUCF CO₂フラックスを、IPCCガイドラインのカテゴリ(森林、森林減少、有機質土壌、HWP等)に整理して収録する。GCB・GFW・EDGARといった独立推計をNGHGI定義に翻訳し比較可能にした点が特徴で、2026年提出分までのデータを網羅する。

English

Version 4.0.0 of the LULUCF Data Hub compiles country-level CO2 fluxes from land use, land-use change and forestry reported by 197 UNFCCC Parties, harmonised to IPCC categories (forest, deforestation, organic soils, HWP). It translates independent estimates (GCB, GFW, EDGAR) into NGHGI/IPCC definitions to enable comparison, covering submissions up to August 2026 with 95% reporting completeness.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本もUNFCCCへのGHGインベントリ報告義務を負い、LULUCFは森林吸収源として地球温暖化対策計画・NDCの鍵を握る。本ハブは各国の報告データを比較可能な形で提供し、日本の吸収源算定やSSBJ・有報でのScope 3土地利用排出開示の基礎資料となりうる。

In the global GX context

Land-use emissions remain a contested area in global disclosure: this hub operationalises the IPCC managed-land framework and reconciles independent datasets with national inventories, directly supporting the transparency architecture under the Paris Agreement's Enhanced Transparency Framework and informing ISSB/CSRD land-use and removals reporting.

👥 読者別の含意

🔬研究者:国別LULUCFフラックスの整合化手法と独立推計の翻訳ロジックを検証するための基盤データを提供する。

🏢実務担当者:自社の土地利用・森林関連排出やScope 3算定の際、各国インベントリ値との整合性確認に活用できる。

🏛政策担当者:パリ協定透明性枠組み下での吸収源報告の比較可能性と、各国インベントリの品質・完全性評価に資する。

📄 Abstract(原文)

This repository includes the data displayed in the LULUCF Data Hub , an online platform hosted by the EU Forest Observatory. It compiles various datasets of country-level CO₂ emissions and removals from land use, land-use change and forestry (LULUCF). The LULUCF Data Hub is described by Melo et al. (ESSD Discussion) . The NGHGI LULUCF database is compiled and maintained by the European Commission (EC) Joint Research Centre (JRC) and was first described by Grassi et al. 2022 . It includes CO₂ fluxes from LULUCF sourced from the National Greenhouse Gas Inventories (NGHGIs) submitted to the United Nations Framework Convention on Climate Change (UNFCCC), using methodologies established by the Intergovernmental Panel on Climate Change (IPCC). CO₂ fluxes reported by countries in IPCC categories and sub-categories are allocated to the classes Forest (excl. organic soils, excl. HWP), Deforestation (conversion of forest land to other land uses), Other non-forest land uses , Organic soils , and Harvested wood products (HWP) (see Box 1). In the LULUCF Data Hub, and through a multi-disciplinary collaboration, we show results from global key initiatives estimating anthropogenic land use CO 2 fluxes translated to conceptually align with NGHGI and IPCC Guidelines definitions. In version 4.0.0 we present data from carbon cycle modelling (Global Carbon Budget, GCB 2025 ), Earth Observations (Global Forest Watch, GFW 2025 ), and EDGAR LULUCF . Data is available in Mt CO₂ yr⁻¹ . Net CO₂ fluxes include emissions by sources and removals by sinks. Non-CO₂ emissions are not included, except where explicitly reported. Countries are identified by their ISO3 code. In addition, the timeseries files also include aggregated estimates for World (WRD) and the European Union (EU27). Version 4.0.0 (NGHGI 2026 release) Contents Files made available in version 4.0.0 NGHGI database 4.0.0 Independent datasets translated to NGHGI/IPCC Guidelines definitions 4.0.0 Versioning and citation policy 1) Files made available in version 4.0.0 File Status vs. previous version timeseries_NGHGI_gap-filled_4.0.0.csv New data (NGHGI 2026 release), replacing v3.1.2 NGHGI content. timeseries_NGHGI_not-gap-filled_4.0.0.csv New data (NGHGI 2026 release), replacing v3.1.2 NGHGI content. timeseries_GCB_original_4.0.0.csv Unchanged: duplicated from v3.1.2, per the versioning convention that x.0.x releases replicate the previous x.1.x non-NGHGI data. timeseries_GCB_translated_4.0.0.csv Unchanged: duplicated from v3.1.2. timeseries_GFW_original_4.0.0.csv Unchanged: duplicated from v3.1.2. timeseries_GFW_translated_4.0.0.csv Unchanged: duplicated from v3.1.2. text_box_iso3_4.0.0.csv Updated: now also includes discussion notes on the data by country, alongside data-source information. chart_sectors_4.0.0.csv New file, not present in earlier versions: all-sector (Energy, IPPU, Agriculture, LULUCF, Waste) summary from CRT Table 10s1/10s2. managed_land_country_classification_4.0.0.csv New file, not present in earlier versions: per-country classification of the use of the managed land proxy and of the treatment of CO2 removals from forest land, used to inform the translation of the independent datasets to the NGHGI managed-land definition (see Figure in read me file). 2) NGHGI database 4.0.0 Version 4.0.0 of the LULUCF Data Hub updates the NGHGI LULUCF database with data submitted to the UNFCCC up to August 2026 for the period 2000-2024. We provide data as submitted by countries in their inventories ( timeseries_NGHGI_not-gap-filled_4.0.0.csv ) and gap-filled without altering the levels and trends of the reported data ( timeseries_NGHGI_gap-filled_4.0.0.csv ). The completeness of LULUCF reporting in 4.0.0 is 95% (see Table 1 in read me file for data by class and region) and the proportion (%) of real (not-gap-filled) LULUCF data in the NGHGI database 2000 and 2024 is 61.5% (see Table 2 and Table 3 in read me file for more complete results by decade and classes). Version 4.0.0 of the NGHGI LULUCF database covers all 197 Parties to the UNFCCC, plus the EU27 aggregate. Each country's data is sourced from the most complete and recent submission available: GHGI 2026 from Annex I countries: 41 countries BTR1 , First Biennial Transparency Report: 82 countries CRT extraction: 64 countries ; BTR1/NID manual entry, for countries whose CRT is unavailable or in a non-standard format: 18 countries — Andorra (AND), Bangladesh (BGD), Bolivia (BOL), Central African Republic (CAF), Dominica (DMA), Dominican Republic (DOM), Israel (ISR), Kyrgyzstan (KGZ), Cambodia (KHM), Liberia (LBR), Madagascar (MDG), Montenegro (MNE), Niger (NER), Nicaragua (NIC), Pakistan (PAK), Philippines (PHL), Papua New Guinea (PNG), Tunisia (TUN); Pre-Paris reporting (National Communication, Biennial Update Report, REDD+, or NDC): 64 countries No LULUCF data available : 10 countries — Egypt (EGY), Kiribati (KIR), Libya (LBY), Maldives (MDV), Marshall Islands (MHL), Nauru (NRU), State of Palestine (PSE), Qatar (QAT), Sierra Leone (SLE), Holy See (VAT). Information on data sources and discussion on the data by country is available in the file text_box_iso3_4.0.0.csv . See also further information on data sources and completeness of the inventories in terms of classes reported in Table 1 in read me file. Version 4.0.0 flagged 8 countries as reporting implausible sinks in the Forest class (Table 4 in read me file) which Forest sinks summed together amount to -0.86 Gt CO₂ yr⁻¹ on average. New in version 4.0 .0 of the NGHGI database : sector summary file This version makes available a new file, chart_sectors_4.0.0.csv , summarising national totals across all GHG-inventory sectors — Energy, Industrial Processes and Product Use (IPPU), Agriculture, LULUCF, and Waste — sourced from Common Reporting Table 10s1 (in CO2e) and Table 10s2 (in CO2). Because these are CRT-specific summary tables, coverage is close to, but not identical with, the 105 countries reporting via GHGI 2026 or CRT BTR1: 108 countries have at least one sector represented (Liberia reports sector totals despite its LULUCF data being manually entered, and Albania, Egypt, Jordan and the Holy See report other sectors despite having no LULUCF data), while Côte d'Ivoire and Sri Lanka have LULUCF data but no corresponding entry in the summary tables. Sector-level coverage also varies by country. Use of managed land proxy The new file managed_land_country_classification_4.0.0.csv includes specific information on the use of the managed land proxy by countries, which is used to inform the translation of the independent datasets (see Melo et al. (ESSD Discussion) and Figure 1 in read me file). 3) Independent datasets translated to NGHGI/IPCC Guidelines definitions 4.0.0 There is no update to the GCB, GFW or EDGAR LULUCF datasets in this version: timeseries_GCB_original_4.0.0.csv , timeseries_GCB_translated_4.0.0.csv , timeseries_GFW_original_4.0.0.csv and timeseries_GFW_translated_4.0.0.csv duplicate the corresponding files from version 3.1.2 — only the NGHGI-derived files are new in version 4.0.0, consistent with the Data Hub's versioning convention (x.0.x releases replicate the previous x.1.x release's non-NGHGI data). As per versioning convention, 4.1.0 planned for November 2026 shall include the updated 2026 data of all the independent datasets. 4) Versioning and citation policy The LULUCF Data Hub was pre-released during the IPCC Expert Meeting on Reconciling Anthropogenic Land-Use Emissions ( IPCC, 2024 ; Grassi et al., 2025 ). Version 4.0.0 is a new release and complements earlier versions (3.1.2, 2.1.1, and 1.0.1). Current versions available: Version 4.0.0 (current): NGHGI 2026 (new data: GHGI 2026 Annex I, BTR1, and pre-Paris reporting, cut-off date August 2026), GCB 2025, GFW 2025, EDGAR LULUCF 2025 (duplicated from version 3.1.2). Version 3.1.2: NGHGI 2025 (Version 2.1.1 complemented by Annex I 2025 GHG reporting, updated October 2025), GCB 2025, GFW 2025, EDGAR LULUCF 2025. Version 2.1.1: NGHGI 2024 (Paris GHG reporting, updated October 2025, complemented by pre-Paris GHG reporting from version 1.0.1), GCB 2024, GFW 2024. Version 1.0.1: NGHGI 2023 (pre-Paris GHG reporting, updated August 2024), GCB 2024, GFW 2024. Citation policy: Users should cite the dataset version they use (this dataset) for the NGHGI file. For the GCB-derived files, please cite Friedlingstein et al. (2026) , and for the GFW-derived files, please cite Gibbs et al. (2025) . When referring to the dataset as a whole, the Zenodo version DOI or concept DOI should be used. For methodological details and context on the LULUCF Data Hub, please cite the associated data description paper: Melo et al. (ESSD Discussion) . For questions, please email [email protected] or [email protected]

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