中国陆地自然生态系统的甲烷和氧化亚氮收支。

IF 16.3 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES
National Science Review Pub Date : 2025-03-11 eCollection Date: 2025-04-01 DOI:10.1093/nsr/nwaf094
Tingting Li, Xinyi Liu, Jiahui Tian, Wenping Yuan, Xuhui Wang, Xiu-Qun Yang, Songbai Hong, Yilong Wang, Qiuan Zhu, Lijun Yu, Jiangzhou Xia, Han Xiao, Minqi Liang, Shihua Li, Zimeng Li, Yingxuan Wang, Kerou Zhang, Min Xu, Zhangcai Qin
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引用次数: 0

摘要

中国的自然陆地生态系统(NTEs)是甲烷(CH₄)和氧化亚氮(N₂O)的重要来源和汇,这是两种强有力的非co₂温室气体。本文综述了基于特定站点外推和模型的中国NTEs的CH₄和N₂O清单,以阐明其时空排放模式。尽管取得了进展,但仍存在重大差距,包括由于模式限制和不一致的驱动数据造成的巨大不确定性,对长期土地利用和气候变化下综合全球变暖潜势(GWP)的评估不足,缺乏淡水排放清单,需要更多的观测,改进先前的部门贡献,以及在机器学习和反演技术中应用同位素签名等新方法。本文通过编制新的nh4和n2o清单并评估其1980-2020年的综合GWP,为评估气候和土地利用影响提供了新的视角。该审查强调了CH₄和N₂O源和汇的重要性,并提出了加强碳固存和减少排放的建议。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Methane and nitrous oxide budget for Chinese natural terrestrial ecosystems.

China's natural terrestrial ecosystems (NTEs) are significant sources and sinks of methane (CH₄) and nitrous oxide (N₂O), two potent non-CO₂ greenhouse gases. This article reviews CH₄ and N₂O inventories for China's NTEs, derived from site-specific extrapolation and models, to elucidate their spatiotemporal emission patterns. Despite progress, significant gaps remain, including large uncertainties due to model limitations and inconsistent driving data, insufficient assessments of integrated global warming potential (GWP) under long-term land-use and climate changes, the lack of freshwater emission inventories, and the need for more observations, refined prior sectoral contributions, and novel methods like isotopic signature applications in machine-learning and inversion techniques. This review offers a new perspective by compiling a new CH₄ and N₂O inventory and evaluating their integrated GWP for 1980-2020, developed using multi-model approaches to assess climate and land-use impacts. The review underscores the importance of CH₄ and N₂O sources and sinks, offering recommendations to enhance carbon sequestration and reduce emissions.

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来源期刊
National Science Review
National Science Review MULTIDISCIPLINARY SCIENCES-
CiteScore
24.10
自引率
1.90%
发文量
249
审稿时长
13 weeks
期刊介绍: National Science Review (NSR; ISSN abbreviation: Natl. Sci. Rev.) is an English-language peer-reviewed multidisciplinary open-access scientific journal published by Oxford University Press under the auspices of the Chinese Academy of Sciences.According to Journal Citation Reports, its 2021 impact factor was 23.178. National Science Review publishes both review articles and perspectives as well as original research in the form of brief communications and research articles.
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