Impacts of air pollution on productivity of natural and cultivated tropical C4 grasses: implications in the face of land use change in Brazil
空气污染对天然和栽培热带 C4 草生产力的影响:巴西土地利用变化的影响
基本信息
- 批准号:NE/V008498/1
- 负责人:
- 金额:$ 10.31万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2020
- 资助国家:英国
- 起止时间:2020 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In the lower atmosphere ozone (O3) is an important anthropogenic greenhouse gas and is an air pollutant responsible for several billion pounds in lost plant productivity each year. Surface O3 has doubled since 1850 due to chemical emissions from vehicles, industrial processes, and the burning of forests. Tropical ecosystems are responsible for nearly half of global plant productivity and it is in these tropical regions that we are likely to see the greatest expansion of human populations this century. Alongside this growing population, we see the expansion of O3 precursor emissions from urbanization and high-intensity agricultural areas. Sugarcane is an important tropical and bioenergy crop, supplying raw material for sugar, ethanol (biofuel) and energy production and contributes to the bioeconomy of both São Paulo state (SP) and Brazil. While the São Paulo state is responsible for over half of Brazilian sugarcane production, sugarcane-derived products account for 17% of the Brazilian energy matrix. In a global context, biofuel production is one major land-based carbon-neutral approach to reduce our reliance on fossil fuels, and thus help society to achieve the challenging Paris accord of limiting climate change to below 2oC.Over the two last decades, SP state has experienced large-scale conversion of pasture (natural C4 grass) to sugarcane fields. At the same time air quality measurements demonstrate O3 concentrations across much of SP above those known to be harmful to plants.This project will make the first comprehensive set of measurements of O3 effects on plant functioning and growth in tropical grasses, both cultivated (e.g. sugarcane) and natural (e.g. used as pasture) using our unique tropical experimental facility in Cairns, Australia. Here we expose tropical grasses to different levels of ozone, to derive relationships between O3 dose and productivity loss. In addition, we investigate the role of drought on the O3 sensitivity of tropical grasses.Finally, we will use this information to assess the impact of regional O3 concentrations and changing land-cover (from natural C4 pasture to sugarcane) for southern Brazil and engage with relevant stakeholders from both policy and academia.
在低层大气中,臭氧(O3)是一种重要的人为温室气体,是一种空气污染物,每年造成数十亿磅的植物生产力损失。自1850年以来,由于车辆、工业过程和森林燃烧的化学排放,地表O3增加了一倍。热带生态系统负责全球近一半的植物生产力,正是在这些热带地区,我们可能会看到本世纪人类人口的最大扩张。随着人口的增长,我们看到城市化和高密度农业地区的O3前体排放量增加。甘蔗是一种重要的热带和生物能源作物,为糖,乙醇(生物燃料)和能源生产提供原料,并为圣保罗州(SP)和巴西的生物经济做出贡献。虽然圣保罗州负责巴西一半以上的甘蔗生产,但甘蔗衍生产品占巴西能源矩阵的17%。在全球范围内,生物燃料生产是一种主要的陆地碳中和方法,可以减少我们对化石燃料的依赖,从而帮助社会实现具有挑战性的巴黎雅阁,将气候变化限制在2 ℃以下。在过去的二十年中,SP州经历了大规模的牧场(天然C4草)转化为甘蔗田。与此同时,空气质量测量表明,在大部分的SP以上的O3浓度是已知的对plants.This项目将使第一个全面的测量O3对植物功能和生长的热带草,无论是栽培(如甘蔗)和自然(如用作牧场)使用我们独特的热带实验设施在澳大利亚凯恩斯。在这里,我们将热带草暴露在不同水平的臭氧中,以获得O3剂量和生产力损失之间的关系。最后,我们将利用这些信息来评估区域O3浓度和巴西南部土地覆盖变化(从天然C4牧场到甘蔗)的影响,并与政策和学术界的相关利益相关者进行接触。
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Impacts of ground-level ozone on sugarcane production.
地面臭氧对甘蔗生产的影响。
- DOI:10.1016/j.scitotenv.2023.166817
- 发表时间:2023
- 期刊:
- 影响因子:0
- 作者:Cheesman AW
- 通讯作者:Cheesman AW
The ozone-climate penalty over South America and Africa by 2100
- DOI:10.5194/acp-22-12331-2022
- 发表时间:2022-09-21
- 期刊:
- 影响因子:6.3
- 作者:Brown, Flossie;Folberth, Gerd A.;Verbeeck, Hans
- 通讯作者:Verbeeck, Hans
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Stephen Sitch其他文献
Growing biomass carbon stock in China driven by expansion and conservation of woody areas
中国木质林面积的扩大和保护推动了生物量碳储量的增长
- DOI:
10.1038/s41561-024-01569-0 - 发表时间:
2024-10-30 - 期刊:
- 影响因子:16.100
- 作者:
Zhanmang Liao;Chao Yue;Binbin He;Kaiguang Zhao;Philippe Ciais;Ramdane Alkama;Giacomo Grassi;Stephen Sitch;Rui Chen;Xingwen Quan;Mengyang Xu;Mengyu Wang - 通讯作者:
Mengyu Wang
Large live biomass carbon losses from droughts in the northern temperate ecosystems during 2016-2022
2016-2022 年期间,北方温带生态系统因干旱导致的大量活体生物量碳损失
- DOI:
10.1038/s41467-025-59999-2 - 发表时间:
2025-06-02 - 期刊:
- 影响因子:15.700
- 作者:
Xiaojun Li;Philippe Ciais;Rasmus Fensholt;Jérome Chave;Stephen Sitch;Josep G. Canadell;Martin Brandt;Lei Fan;Xiangming Xiao;Shengli Tao;Huan Wang;Clément Albergel;Hui Yang;Frédéric Frappart;Mengjia Wang;Ana Bastos;Philippe Maisongrande;Yuanwei Qin;Zanpin Xing;Tianxiang Cui;Ling Yu;Lei He;Yi Zheng;Xiangzhuo Liu;Yuqing Liu;Aurelien De Truchis;Jean-Pierre Wigneron - 通讯作者:
Jean-Pierre Wigneron
Response of global land evapotranspiration to climate change, elevated CO2, and land use change
全球土地蒸散对气候变化、二氧化碳浓度升高和土地利用变化的响应
- DOI:
10.1016/j.agrformet.2021.108663 - 发表时间:
2021 - 期刊:
- 影响因子:6.2
- 作者:
Jianyu Liu;Yuanyuan You;Jianfeng Li;Stephen Sitch;Xihui Gu;Julia E.M.S. Nabel;Danica Lombardozzi;Ming Luo;Xingyu Feng;Almut Arneth;Atul K. Jain;Pierre Friedlingstein;Hanqin Tian;Ben Poulter;Dongdong Kong - 通讯作者:
Dongdong Kong
On the use of Earth Observation to support estimates of national greenhouse gas emissions and sinks for the Global stocktake process: lessons learned from ESA-CCI RECCAP2
- DOI:
10.1186/s13021-022-00214-w - 发表时间:
2022-10-01 - 期刊:
- 影响因子:5.800
- 作者:
Ana Bastos;Philippe Ciais;Stephen Sitch;Luiz E. O. C. Aragão;Frédéric Chevallier;Dominic Fawcett;Thais M. Rosan;Marielle Saunois;Dirk Günther;Lucia Perugini;Colas Robert;Zhu Deng;Julia Pongratz;Raphael Ganzenmüller;Richard Fuchs;Karina Winkler;Sönke Zaehle;Clément Albergel - 通讯作者:
Clément Albergel
Increased terrestrial ecosystem carbon storage associated with global utility-scale photovoltaic installation
与全球公用事业规模的光伏安装相关的陆地生态系统碳储存增加
- DOI:
10.1038/s41561-025-01715-2 - 发表时间:
2025-06-02 - 期刊:
- 影响因子:16.100
- 作者:
Qingrui Wang;Kai Wang;Lintao Shao;Xinyi Tang;Shuchang Tang;Ondřej Mašek;Gesa Meyer;Jan Kleissl;Liwei Zhang;Mudan Wang;Weisheng Wang;Qing Yang;Stephen Sitch - 通讯作者:
Stephen Sitch
Stephen Sitch的其他文献
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{{ truncateString('Stephen Sitch', 18)}}的其他基金
Amazon-SOS: a Safe Operating Space for Amazonian Forests
Amazon-SOS:亚马逊森林的安全作业空间
- 批准号:
NE/X019055/1 - 财政年份:2024
- 资助金额:
$ 10.31万 - 项目类别:
Research Grant
Ozone impacts on tropical vegetation; implications for forest productivity (Trop-Oz)
臭氧对热带植被的影响;
- 批准号:
NE/R001812/1 - 财政年份:2018
- 资助金额:
$ 10.31万 - 项目类别:
Research Grant
FAPESP-NERC South American Montane Forests in a Warming World
FAPESP-NERC 变暖世界中的南美山地森林
- 批准号:
NE/R00532X/1 - 财政年份:2018
- 资助金额:
$ 10.31万 - 项目类别:
Research Grant
Understanding how drought affects the risk of increased mortality in tropical rain forests
了解干旱如何影响热带雨林死亡率增加的风险
- 批准号:
NE/J010154/1 - 财政年份:2012
- 资助金额:
$ 10.31万 - 项目类别:
Research Grant
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