MSA: Dynamics of Chlorophyll Fluorescence and Its Relationship with Photosynthesis from Leaf to Continent: Theory Meets Data

MSA:叶绿素荧光动力学及其与从叶子到大陆的光合作用的关系:理论与数据的结合

基本信息

  • 批准号:
    1926488
  • 负责人:
  • 金额:
    $ 30万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2019
  • 资助国家:
    美国
  • 起止时间:
    2019-09-01 至 2023-08-31
  • 项目状态:
    已结题

项目摘要

Photosynthesis is the process by which plants use the sun's energy to convert carbon dioxide (CO2) and water into sugar and oxygen. Photosynthesis can be directly observed in single leaves but not for whole plants, regions, continents, or the globe. This inability hinders the prediction of future food production and how Earth's climate may change. Measurement of Solar-Induced chlorophyll Fluorescence (SIF) is a recent breakthrough in satellite and ground-based observation. SIF may allow us to estimate photosynthesis for larger scales. This project will study how photosynthesis measured by SIF can be applied from the leaf to continental levels. The results will enable using knowledge of leaf-level photosynthesis to support prediction of the future capacity of photosynthetic CO2 uptake by terrestrial ecosystems. SIF measurements are already underway from ongoing and upcoming satellite missions. These measurements may allow better estimates of carbon sources and sinks, which can inform climate change mitigation and adaptation and help predict future food production.The overall goal of this research is to develop a cross-scale analytical framework, built upon the mechanistic models of light reactions of photosynthesis. To achieve this goal, three tasks will be performed: 1) develop and validate a leaf-level theoretical modeling framework for SIF and photosynthesis by building a database with key plant biophysical and biochemical parameters (e.g., non-photochemical quenching; fraction of open photosystem II reaction centers) of light reactions across a wide range of species and environmental conditions at Cornell Botanic Garden and Musgrave Research Farm; 2) integrate theoretical light reaction models with canopy radiative transfer models to understand the driving factors for SIF-photosynthetic dynamics across the National Ecological Observatory Network (NEON) sites across wide ecoregions; 3) constrain photosynthesis estimates and variability across conterminous US using the analytical framework implemented into the National Center for Atmospheric Research (NCAR) Community Land Model (CLM). The database developed will be permanently stored beyond the lifespan of this project and accessible and expandable by the science community at large. The theoretical models developed will, for the first time, decompose the complexities hidden in the traditionally used Light Use Efficiency concept. This project will fully utilize NEON's Airborne Observation Platform datasets to clarify how the xanthophyll cycle affects SIF, which has not yet been explored in conjunction with SIF before.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
光合作用是植物利用太阳能将二氧化碳(CO2)和水转化为糖和氧气的过程。光合作用可以直接在单叶中观察到,但不能在整个植物、地区、大陆或全球范围内观察到。这种无能为力阻碍了对未来粮食产量和地球气候变化的预测。太阳诱导的叶绿素荧光(SIF)测量是卫星和地面观测的最新突破。SIF可以让我们估计更大尺度的光合作用。该项目将研究如何将SIF测量的光合作用应用于从树叶到大陆的水平。这一结果将使人们能够利用叶片水平的光合作用知识来支持对陆地生态系统未来光合作用二氧化碳吸收能力的预测。正在进行和即将进行的卫星飞行任务已经在进行SIF测量。这些测量可能会更好地估计碳源和碳汇,这可以为气候变化的缓解和适应提供信息,并有助于预测未来的粮食生产。这项研究的总体目标是开发一个跨尺度的分析框架,建立在光合作用的光反应机制模型的基础上。为了实现这一目标,将完成三项任务:1)通过建立一个包含康奈尔植物园和马斯格雷夫研究农场各种物种和环境条件下各种光反应的关键植物生物物理和生化参数(例如,非光化学猝灭;开放光系统II反应中心的部分)的数据库,开发和验证SIF和光合作用的叶水平理论模型框架;2)将理论光反应模型与冠层辐射传输模型相结合,以了解全国生态观测网络(NEON)站点跨广泛生态区域的SIF-光合作用动态的驱动因素;3)使用国家大气研究中心(NCAR)社区陆地模型(CLM)中实施的分析框架,限制连续美国的光合作用估计和可变性。所开发的数据库将在该项目的生命周期之后永久存储,并可供科学界广大用户访问和扩展。开发的理论模型将首次分解隐藏在传统使用的光能利用效率概念中的复杂性。该项目将充分利用霓虹灯的机载观测平台数据集,以澄清叶黄素循环如何影响SIF,这是以前尚未与SIF一起探索的。该奖项反映了NSF的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Unpacking the drivers of diurnal dynamics of sun-induced chlorophyll fluorescence (SIF): Canopy structure, plant physiology, instrument configuration and retrieval methods
  • DOI:
    10.1016/j.rse.2021.112672
  • 发表时间:
    2021-08-31
  • 期刊:
  • 影响因子:
    13.5
  • 作者:
    Chang, Christine Y.;Wen, Jiaming;Sun, Ying
  • 通讯作者:
    Sun, Ying
Inference of photosynthetic capacity parameters from chlorophyll a fluorescence is affected by redox state of PSII reaction centers
  • DOI:
    10.1111/pce.14271
  • 发表时间:
    2022-02-06
  • 期刊:
  • 影响因子:
    7.3
  • 作者:
    Han, Jimei;Gu, Lianhong;Sun, Ying
  • 通讯作者:
    Sun, Ying
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Ying Sun其他文献

Carboxylesterase from Spodoptera Litura: Immobilization and use for the Degradation of Pesticides
来自斜纹夜蛾的羧酸酯酶:固定化及其用于农药降解的用途
  • DOI:
    10.1016/j.proenv.2013.04.084
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Guangyu Zhao;Yuanqing Li;Jinli Huang;Ying Sun
  • 通讯作者:
    Ying Sun
Optical Performance, Thermal Stability, and Failure Analysis of the WNx-Si3N4 Multilayer Solar Selective Absorbing Coatings
WNx-Si3N4 多层太阳能选择性吸收涂层的光学性能、热稳定性和失效分析
  • DOI:
    10.1021/acsaem.1c03373
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    6.4
  • 作者:
    Binghui Sun;Lei Wang;Ying Sun;Jie Ren;Yingxin Yang;Huan Liu;Dongdong Liang;Aoyu Li;Cong Wang
  • 通讯作者:
    Cong Wang
Asymmetric Synthesis of Hispidanin A and the Related Diterpenoids.
Hispidanin A 和相关二萜的不对称合成。
  • DOI:
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Wei Cao;Heping Deng;Ying Sun;Bo Liu;Song Qin
  • 通讯作者:
    Song Qin
Simultaneous quantitation of cytokinin bases and their glycoconjugates with stable isotope labelling ultrahigh performance liquid chromatography mass spectrometry
使用稳定同位素标记超高效液相色谱质谱法同时定量细胞分裂素碱基及其糖缀合物
  • DOI:
    10.1016/j.chroma.2020.461782
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    4.1
  • 作者:
    Xin Zhou;Ruo-Qi Li;Cong Wang;Xiao-Xia Ma;Ying Sun;Wen-Xuan Song;Xue-Bing Wei;Dong-hua Li;Xiao Ma;Ren-Qi Wang
  • 通讯作者:
    Ren-Qi Wang
Epidemic Amplifier Detection: Finding High-Risk Locations in COVID-19 Cases' Location Sequences via Multi-task Learning
流行病放大器检测:通过多任务学习在COVID-19病例位置序列中查找高风险位置

Ying Sun的其他文献

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{{ truncateString('Ying Sun', 18)}}的其他基金

REU Site: Research Experiences for American Leadership of Industry with Zero Emissions by 2050 (REALIZE-2050)
REU 网站:2050 年美国零排放工业领先地位的研究经验 (REALIZE-2050)
  • 批准号:
    2349580
  • 财政年份:
    2024
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
Collaborative Research: ISS: Probing Interfacial Instabilities in Flow Boiling and Condensation via Acoustic Signatures in Microgravity
合作研究:ISS:通过微重力下的声学特征探测流动沸腾和冷凝中的界面不稳定性
  • 批准号:
    2323023
  • 财政年份:
    2023
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
The Role of Interstitial Air Layer in Drop Impact on Liquid-infused Surfaces
间隙空气层在液体注入表面的液滴冲击中的作用
  • 批准号:
    2300317
  • 财政年份:
    2022
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
Effects of electrode microstructure and Li2O2 growth on Li-air battery performance
电极微观结构和Li2O2生长对锂空气电池性能的影响
  • 批准号:
    2310530
  • 财政年份:
    2022
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
Intergovernmental Personnel Award
政府间人才奖
  • 批准号:
    1940923
  • 财政年份:
    2019
  • 资助金额:
    $ 30万
  • 项目类别:
    Intergovernmental Personnel Award
Effects of electrode microstructure and Li2O2 growth on Li-air battery performance
电极微观结构和Li2O2生长对锂空气电池性能的影响
  • 批准号:
    1804374
  • 财政年份:
    2018
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
The Role of Interstitial Air Layer in Drop Impact on Liquid-infused Surfaces
间隙空气层在液体注入表面的液滴冲击中的作用
  • 批准号:
    1705745
  • 财政年份:
    2017
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
EAGER: Collaborative Research: Shear Dependent Reaction Kinetics in Particulate Electrochemical Energy Storage
EAGER:合作研究:颗粒电化学储能中的剪切相关反应动力学
  • 批准号:
    1318341
  • 财政年份:
    2013
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
Scalable Capillary-Driven Assembly of Asymmetric Nanoparticles via Inkjet Printing
通过喷墨打印可扩展毛细管驱动的不对称纳米粒子组装
  • 批准号:
    1200385
  • 财政年份:
    2012
  • 资助金额:
    $ 30万
  • 项目类别:
    Standard Grant
Multi-scale Study of Coupled Reaction and Wetting in Droplet Spreading
液滴铺展中的耦合反应和润湿的多尺度研究
  • 批准号:
    1104835
  • 财政年份:
    2011
  • 资助金额:
    $ 30万
  • 项目类别:
    Continuing Grant

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β-arrestin2- MFN2-Mitochondrial Dynamics轴调控星形胶质细胞功能对抑郁症进程的影响及机制研究
  • 批准号:
    n/a
  • 批准年份:
    2023
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    0.0 万元
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