地質炭素貯留漏洩の農業リスク：データサンプルとコード
Data sample and code for 'Agricultural risks of geological carbon storage leakage' (原題)
Ma, Xin, Zhang, Xueyan, Tian, Zhan, Sun, Laixiang
🤖 gxceed AI 要約
日本語
地質炭素貯留（CCS）からのCO₂漏洩が農地に与える影響を、複数年の植物実験と全球空間分析で定量化した研究。6種の作物を用い漏洩強度と成長・バイオマス減少の暴露応答関数を導出し、既存・計画・将来のCCSと農地の重複を評価。大規模展開時には最大1億1,361万ha（全球農地の7.27%）が影響を受け、バイオマス損失は776Mtに達する可能性を示した。
English
This study quantifies agricultural risks from CO2 leakage at geological carbon storage sites by combining multi-year plant experiments with global spatial analysis. It derives exposure-response functions linking leakage intensity to crop height and biomass loss across six species, then overlays them with existing, planned, and prospective CCS deployment. Large-scale deployment could expose up to 113.61 million ha (7.27% of global cropland), with biomass losses reaching 776 Mt, highlighting an overlooked externality for CCS siting and governance.
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
日本はCCSの商業化を推進しており、適地選定や環境アセスメントにおいて農業影響を考慮する必要性を示す。GX推進と地域農業の共存という政策課題に直結する。
In the global GX context
As CCS scales under net-zero pathways, this paper adds an agricultural externality dimension to siting and governance debates, relevant to ISSB/TCFD physical risk assessments and environmental impact frameworks for carbon storage projects globally.
👥 読者別の含意
🔬研究者:CCSの環境影響評価に農業リスクを統合する定量的枠組みを提供する。
🏢実務担当者:CCSプロジェクトの立地選定や環境モニタリング計画に農地影響の視点を組み込む必要性を示す。
🏛政策担当者:CCSの規制・許認可において農業影響を評価項目に加えるべき根拠を提供する。
📄 Abstract（原文）
Geological carbon storage is central to deep decarbonization, yet the agricultural consequences of CO 2 leakage to the land surface remain poorly quantified. Here, we combine controlled multi-year plant experiments with global spatial analysis to quantify cropland risks associated with chronic near-surface CO₂ leakage. Across six crop and forage species exposed to five leakage fluxes, plant growth and biomass declined nonlinearly with leakage intensity, while net photosynthesis, transpiration, and stomatal conductance deteriorated progressively under higher fluxes. These responses were used to derive empirical exposure–response functions linking CO 2 leakage intensity to plant height and biomass loss. Integrating these functions with global datasets of existing, planned, and prospective geological carbon storage deployment shows that cropland exposure is geographically concentrated in major storage-agriculture hotspots. U nder the extreme upper-limit scenario , e xisting and planned projects could overlap approximately 0.61 and 2.80 million ha of cropland, respectively. In comparison, prospective large-scale deployment could expose up to 113. 61 million ha, equivalent to 7.27% of global cropland. Under the largest deployment scenario, potential biomass losses reach 776 . 2 4 Mt. Although the magnitude of these estimates is sensitive to environmental conditions, leakage pathways, and storage parameters, the spatial concentration of agricultural exposure remains consistent across scenarios. Our findings identify an overlooked agricultural externality of ge ological carbon storage and show that cropland exposure should be considered alongside geological, engineering and environmental criteria in the siting, monitoring and governance of large-scale carbon storage.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/22662024first seen 2026-09-10 04:11:05 · last seen 2026-09-16 04:11:49
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