Thresholds of Carbon and Nitrogen Emissions for Sustainable Development in China
中国における持続可能な発展のための炭素・窒素排出閾値 (AI 翻訳)
Yi Zhou, Xin Xu, Xi Zhang, Baojing Gu
🤖 gxceed AI 要約
日本語
本論文は、中国を対象に、持続可能な開発目標（SDGs）達成に必要な炭素・窒素排出の閾値を定量化した。カップル型人間・自然システムモデルを用いた分析により、2020年比で温室効果ガス排出59％削減、窒素排出（大気・水）50％・56％削減が必要と判明。達成時の社会的便益は9,880億ドルと試算され、実施コストの6倍に相当する。現在の対策では目標値の2割にも満たず、統合的対策や技術革新の必要性を指摘する。
English
This study quantifies carbon and nitrogen emission thresholds for achieving SDGs in China using a Coupled Human and Natural Systems model. It finds that meeting carbon- and nitrogen-related SDGs requires 59% reduction in GHG, 50% and 56% reductions in nitrogen emissions to air and water (vs. 2020), with societal benefits of US$988 billion—six times implementation costs. Current best practices achieve only 19% and 18% of targets, highlighting the need for integrated policies and advanced management technologies.
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
日本でもSDGs達成に向けた排出削減目標の設定が進む中、本論文の統合的アプローチと費用便益分析は、日本の政策立案やSSBJを活用した企業戦略にも示唆を与える。特に、農業由来の窒素排出管理や産業・エネルギー転換のバランスは、日本が直面する課題と共通する部分が多い。
In the global GX context
This paper offers a quantitative, integrated framework for aligning emission reductions with SDGs, relevant for global disclosure initiatives (e.g., ISSB, TCFD) that increasingly require science-based targets. The cost-benefit analysis (US$988B societal benefits) provides a compelling business case for transition finance. While focused on China, the methodology is transferable and supports the growing demand for country-level decarbonization pathways in climate finance.
👥 読者別の含意
🔬研究者:The integrated CHANS modeling approach and threshold quantification provide a robust methodology for emission reduction target-setting in other countries or regions.
🏛政策担当者:The paper demonstrates that ambitious emission reductions (59% GHG, ~50% nitrogen) yield high societal returns (6x cost), making a strong case for accelerated policy action and integrated carbon-nitrogen management.
📄 Abstract（原文）
Abstract The carbon and nitrogen cycles are central to climate regulation, ecosystem health, and food security, yet their integration into the Sustainable Development Goals (SDGs) framework remains limited. By using a Coupled Human and Natural Systems model, we quantify carbon and nitrogen emission thresholds to achieve related SDGs in China. We find that meeting carbon‐ and nitrogen‐related SDGs requires reductions of 59% in greenhouse gas emissions and 50% and 56% in nitrogen emissions to air and water, respectively, relative to 2020 levels. Achieving these targets could deliver US$988 billion in societal benefits, six times the implementation cost, through yield promotion, improved public health, restored ecosystems, and climate change mitigation. Under current best practices, greenhouse gas reductions reach only 19% of the target values, with nitrogen reductions reach 18%. While industrial and energy transitions could yield substantial carbon dioxide and nitrogen oxides reductions in eastern China, agricultural nitrogen losses remain high in major crop‐ and livestock‐producing regions. Closing these gaps will require integrated policies, deep socioeconomic transformation, and advanced carbon‐nitrogen management technologies, providing a transferable pathway for aligning environmental and economic objectives within the SDG framework.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1029/2025ef007221first seen 2026-07-27 05:07:40
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