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科学通报（英文版）
科学通报（英文版）

周光召

旬刊

1001-6538

csb@scichina.com

010-64036120

100717

北京东黄城根北街16号

科学通报（英文版）/Journal Chinese Science BulletinEISCI
查看更多>>《科学通报》创刊于1950年，是中国科学院主办、中国科学杂志社承办的自然科学综合性学术刊物，报道自然科学各学科基础理论和应用研究方面具有创新性和和高水平的、具有重要意义的最新研究成果，要求文章的可读性强，能在一个比较宽范的学术领域产生深刻的影响。我们的目标是：成为国内外读者了解中国乃至世界范围的自然科学各研究领域最新成果的主要窗口之一。《科学通报》进入了国际上主要检索系统，如CA，EI，日本《科技速报》和美国科学信息研究所（ISI）的以下系统：Science Citation Index(SCI-CDE)，SCISearch，Current Contents(PC&E)和Research Alert。
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    Large potential of strengthening the land carbon sink in China through anthropogenic interventions

    Xu YueHao ZhouYang CaoHong Liao...
    2622-2631页
    查看更多>>摘要：The terrestrial ecosystem in China mitigates 21％-45％of the national contemporary fossil fuel CO2 emis-sions every year.Maintaining and strengthening the land carbon sink is essential for reaching China's tar-get of carbon neutrality.However,this sink is subject to large uncertainties due to the joint impacts of climate change,air pollution,and human activities.Here,we explore the potential of strengthening land carbon sink in China through anthropogenic interventions,including forestation,ozone reduction,and lit-ter removal,taking advantage of a well-validated dynamic vegetation model and meteorological forcings from 16 climate models.Without anthropogenic interventions,considering Shared Socioeconomic Pathways(SSP)scenarios,the land sink is projected to be 0.26-0.56 Pg C a-1 at 2060,to which climate change contributes 0.06-0.13 Pg C a-1 and CO2 fertilization contributes 0.08-0.44 Pg C a-1 with the stron-ger effects for higher emission scenarios.With anthropogenic interventions,under a close-to-neutral emission scenario(SSP1-2.6),the land sink becomes 0.47-0.57 Pg C a-1 at 2060,including the contribu-tions of 0.12 Pg C a-1 by conservative forestation,0.07 Pg C a-1 by ozone pollution control,and 0.06-0.16 Pg C a-1 by 20％litter removal over planted forest.This sink can mitigate 90％-110％of the residue anthropogenic carbon emissions in 2060,providing a solid foundation for the carbon neutrality in China.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Water consumption and biodiversity:Responses to global emergency events

    Dandan ZhaoJunguo LiuLaixiang SunKlaus Hubacek...
    2632-2646页
    查看更多>>摘要：Given that it was a once-in-a-century emergency event,the confinement measures related to the coron-avirus disease 2019(COVID-19)pandemic caused diverse disruptions and changes in life and work pat-terns.These changes significantly affected water consumption both during and after the pandemic,with direct and indirect consequences on biodiversity.However,there has been a lack of holistic evaluation of these responses.Here,we propose a novel framework to study the impacts of this unique global emer-gency event by embedding an environmentally extended supply-constrained global multi-regional input-output model(MRIO)into the drivers-pressure-state-impact-response(DPSIR)framework.This framework allowed us to develop scenarios related to COVID-19 confinement measures to quantify country-sector-specific changes in freshwater consumption and the associated changes in biodiversity for the period of 2020-2025.The results suggest progressively diminishing impacts due to the implemen-tation of COVID-19 vaccines and the socio-economic system's self-adjustment to the new normal.In 2020,the confinement measures were estimated to decrease global water consumption by about 5.7％on average across all scenarios when compared with the baseline level with no confinement measures.Further,such a decrease is estimated to lead to a reduction of around 5％in the related pressure on bio-diversity.Given the interdependencies and interactions across global supply chains,even those countries and sectors that were not directly affected by the COVID-19 shocks experienced significant impacts:Our results indicate that the supply chain propagations contributed to 79％of the total estimated decrease in water consumption and 84％of the reduction in biodiversity loss on average.Our study demonstrates that the MRIO-enhanced DSPIR framework can help quantify resource pressures and the resultant environ-mental impacts across supply chains when facing a global emergency event.Further,we recommend the development of more locally based water conservation measures-to mitigate the effects of trade dis-ruptions-and the explicit inclusion of water resources in post-pandemic recovery schemes.In addition,innovations that help conserve natural resources are essential for maintaining environmental gains in the post-pandemic world.
      原文链接:
    • NETL
    • NSTL
    • 万方数据