Global spatially explicit carbon emissions from land-use change over the past six decades (1961–2020)

IF 15.1 1区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES
Zhangcai Qin, Yakun Zhu, Josep G. Canadell, Min Chen, Tingting Li, Umakant Mishra, Wenping Yuan
{"title":"Global spatially explicit carbon emissions from land-use change over the past six decades (1961–2020)","authors":"Zhangcai Qin, Yakun Zhu, Josep G. Canadell, Min Chen, Tingting Li, Umakant Mishra, Wenping Yuan","doi":"10.1016/j.oneear.2024.04.002","DOIUrl":null,"url":null,"abstract":"<p>Land-use change (LUC) is a major source of global anthropogenic carbon emissions that contribute to climate change. However, current estimates of LUC-induced emissions vary widely with differences in data and models, making it challenging to identify and manage emissions hotspots by location and LUC activity. Here, we estimated spatially explicit carbon fluxes associated with global major gross land-use transitions based on a new bookkeeping model (i.e., LUCE). Between 1961 and 2020, LUC induced 215 and 142 Pg C of global carbon emissions and removals, respectively, resulting in average net emissions (<em>E</em><sub>LUC</sub>) of 1.21 Pg C year<sup>−1</sup>. Latin America, Southeast Asia, and Sub-Saharan Africa dominated global <em>E</em><sub>LUC</sub> with 69% of 60-year cumulative emissions, or about 86% between 2001 and 2020. Forest-related LUC activities (e.g., deforestation, reforestation) contributed largely to both regional and global carbon fluxes. Our findings shed new light on identifying LUC-induced emissions hotspots and managing land for climate mitigation and conservation.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"81 1","pages":""},"PeriodicalIF":15.1000,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"One Earth","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1016/j.oneear.2024.04.002","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

Abstract

Land-use change (LUC) is a major source of global anthropogenic carbon emissions that contribute to climate change. However, current estimates of LUC-induced emissions vary widely with differences in data and models, making it challenging to identify and manage emissions hotspots by location and LUC activity. Here, we estimated spatially explicit carbon fluxes associated with global major gross land-use transitions based on a new bookkeeping model (i.e., LUCE). Between 1961 and 2020, LUC induced 215 and 142 Pg C of global carbon emissions and removals, respectively, resulting in average net emissions (ELUC) of 1.21 Pg C year−1. Latin America, Southeast Asia, and Sub-Saharan Africa dominated global ELUC with 69% of 60-year cumulative emissions, or about 86% between 2001 and 2020. Forest-related LUC activities (e.g., deforestation, reforestation) contributed largely to both regional and global carbon fluxes. Our findings shed new light on identifying LUC-induced emissions hotspots and managing land for climate mitigation and conservation.

Abstract Image

过去六十年(1961-2020 年)土地利用变化产生的全球空间显性碳排放
土地利用变化(LUC)是导致气候变化的全球人为碳排放的主要来源。然而,由于数据和模型的差异,目前对土地利用变化引起的排放的估计差别很大,这使得按地点和土地利用变化活动来识别和管理排放热点具有挑战性。在此,我们基于一个新的簿记模型(即 LUCE)估算了与全球主要土地利用总转变相关的空间明确碳通量。从 1961 年到 2020 年,土地利用变化引起的全球碳排放量和碳清除量分别为 215 和 142 Pg C,平均净排放量(ELUC)为每年 1.21 Pg C。拉丁美洲、东南亚和撒哈拉以南非洲在全球碳排放和碳清除中占主导地位,占 60 年累计排放量的 69%,或 2001 至 2020 年间的约 86%。与森林相关的土地利用变化活动(如毁林、重新造林)在很大程度上造成了地区和全球的碳通量。我们的研究结果为识别土地利用变化引起的排放热点以及管理土地以减缓和保护气候提供了新的思路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
One Earth
One Earth Environmental Science-Environmental Science (all)
CiteScore
18.90
自引率
1.90%
发文量
159
期刊介绍: One Earth, Cell Press' flagship sustainability journal, serves as a platform for high-quality research and perspectives that contribute to a deeper understanding and resolution of contemporary sustainability challenges. With monthly thematic issues, the journal aims to bridge gaps between natural, social, and applied sciences, along with the humanities. One Earth fosters the cross-pollination of ideas, inspiring transformative research to address the complexities of sustainability.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信