Yuhan Liu

ORCID: 0000-0003-4582-935X
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About
Contact & Profiles
Research Areas
  • Atmospheric chemistry and aerosols
  • Air Quality and Health Impacts
  • Atmospheric Ozone and Climate
  • Air Quality Monitoring and Forecasting
  • Atmospheric and Environmental Gas Dynamics
  • Fish Ecology and Management Studies
  • Plant responses to elevated CO2
  • earthquake and tectonic studies
  • Speech and Audio Processing
  • Atmospheric aerosols and clouds
  • Aeolian processes and effects
  • Meteorological Phenomena and Simulations
  • Isotope Analysis in Ecology
  • Water Quality Monitoring and Analysis
  • Plant Reproductive Biology
  • Fluid Dynamics and Turbulent Flows
  • Underwater Acoustics Research
  • Spectroscopy and Laser Applications
  • Land Use and Ecosystem Services
  • Aquatic Invertebrate Ecology and Behavior
  • Personality Traits and Psychology
  • Geochemistry and Elemental Analysis
  • Vehicle emissions and performance
  • Plant Pathogenic Bacteria Studies
  • Aquatic Ecosystems and Phytoplankton Dynamics

East China Normal University
2024

China National Botanical Garden
2023-2024

Institute of Acoustics
2022-2024

Chinese Academy of Sciences
2019-2024

Peking University
2016-2024

Czech Academy of Sciences, Institute of Botany
2024

Beijing Botanical Garden
2023-2024

University of Chinese Academy of Sciences
2019-2024

Institute of Botany
2023-2024

China Institute of Atomic Energy
2022-2024

Abstract. The first wintertime in situ measurements of hydroxyl (OH), hydroperoxy (HO2) and organic peroxy (RO2) radicals (ROx=OH+HO2+RO2) combination with observations total reactivity OH radicals, kOH Beijing are presented. field campaign “Beijing winter finE particle STudy – Oxidation, Nucleation light Extinctions” (BEST-ONE) was conducted at the suburban site Huairou near from January to March 2016. It aimed understand oxidative capacity during elucidate secondary pollutants' formation...

10.5194/acp-18-12391-2018 article EN cc-by Atmospheric chemistry and physics 2018-08-27

In contrast to summer smog, the contribution of photochemistry formation winter haze in northern mid-to-high latitude is generally assumed be minor due reduced solar UV and water vapor concentrations. Our comprehensive observations atmospheric radicals relevant parameters during several events 2016 Beijing, however, reveal surprisingly high hydroxyl radical oxidation rates up 15 ppbv/h, which comparable values reported photochemical smog two three times larger than those determined previous...

10.1021/acs.est.9b02422 article EN Environmental Science & Technology 2019-08-16

Abstract. Hydroxyl (OH) and peroxy radicals (HO2 RO2) were measured in the Pearl River Delta, which is one of most polluted areas China, autumn 2014. The radical observations complemented by measurements OH reactivity (inverse lifetime) a comprehensive set trace gases including carbon monoxide (CO), nitrogen oxides (NOx=NO, NO2) volatile organic compounds (VOCs). was range from 15 to 80 s−1, about 50 % unexplained reactants. In 3 weeks campaign, maximum median concentrations 4.5×106 cm−3 for...

10.5194/acp-19-7129-2019 article EN cc-by Atmospheric chemistry and physics 2019-05-29

As nitrous acid (HONO) photolysis is an important source of hydroxyl radical (OH), apportionment the ambient HONO sources necessary to better understand atmospheric oxidation. Based on data HONO-related species and various parameters measured during one–month campaign at Wangdu (a rural site in North China plain) summer 2014, a box model was adopted with input current literature parametrizations for (nitrogen dioxide heterogeneous conversion, photoenhanced adsorbed nitric particulate...

10.1021/acs.est.8b06367 article EN Environmental Science & Technology 2019-02-27

Particulate nitrate (pNO3–) has often been found to be the major component of fine particles in urban air-sheds China, United States, and Europe during winter haze episodes recent years. However, there is a lack knowledge regarding experimentally determined contribution different chemical pathways formation pNO3–. Here, for first time, we combine ground tall-tower observations quantify pNO3– using observationally constrained model approach based on direct OH N2O5 air-shed. We find that...

10.1021/acs.est.0c00972 article EN Environmental Science & Technology 2020-06-26

Monoterpenes have been known to a critical influence on air quality and climate change through their impact the formation of fine particles. Here we present field evidence that monoterpene oxidations largely enhanced local ozone production in regional site eastern China. The observed was most likely from biomass burning rather than biogenic emissions, as indicated by high correlation with CO at night-time, ratio these two species consistent previously determined values experiments. Fast were...

10.1093/nsr/nwac103 article EN cc-by National Science Review 2022-05-31

Severe ozone (O3) pollution has been a major air quality issue and affects environmental sustainability in China. Conventional mitigation strategies focusing on reducing volatile organic compounds nitrogen oxides (NOx) remain complex challenging. Here, through field flux measurements laboratory simulations, we observe substantial nitrous acid (HONO) emissions (FHONO) enhanced by fertilizer application at an agricultural site. The observed FHONO significantly improves model performance...

10.1021/acs.est.4c01070 article EN cc-by Environmental Science & Technology 2024-05-16

Abstract. High concentrations of PM2.5 (particulate matter with an aerodynamic diameter less than 2.5 µm) in China have caused severe visibility degradation. Accurate simulations and its chemical components are essential for evaluating the effectiveness pollution control strategies health climate impacts air pollution. In this study, we compared GEOS-Chem model comprehensive datasets organic aerosol (OA), sulfate, nitrate, ammonium China. Model results evaluated spatially temporally against...

10.5194/acp-20-12265-2020 article EN cc-by Atmospheric chemistry and physics 2020-10-28

FERONIA (FER) is a receptor-like kinase showing versatile functions during plant growth, development, and responses to environmental stimuli. However, its the interaction between fruit necrotrophic fungal pathogens are still unclear. Combining reverse genetic approaches, physiological assays, co-immunoprecipitation, protein phosphorylation identification, site-directed mutagenesis, we reported tomato FER homolog SlFERL (Solanum lycopersicum Like) involved in immune Botrytis cinerea invasion....

10.1111/nph.19210 article EN New Phytologist 2023-08-18

Abstract. Ship-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements were conducted along the marginal seas of China from 19 April to 16 May 2018 measure vertical profiles aerosol, nitrogen dioxide (NO2), and nitrous acid (HONO). Along cruise route, we found five hot spots with enhanced tropospheric NO2 column densities (VCDs) in Yangtze River Delta, Taiwan Strait, Guangzhou–Hong Kong–Macau Greater Bay Area, port Zhanjiang, Qingdao. Enhanced HONO...

10.5194/acp-23-5815-2023 article EN cc-by Atmospheric chemistry and physics 2023-05-26

Global environmental change has altered biotic interactions in ecosystems. Trophic structure is a major characteristic of ecosystems, and understanding the factors determining trophic thus important for predicting response ecological dynamics ecosystem services to future change. Different kinds drivers, including size, productivity, disturbance, have been proposed explain variation various Much remains unknown about how these drivers operate its underlying mechanisms, particularly shallow...

10.1016/j.ecolind.2021.107924 article EN cc-by-nc-nd Ecological Indicators 2021-06-28

Big earthquakes often excite the acoustic resonance between earth’s surface and lower atmosphere. The perturbations can propagate upward into ionosphere trigger ionospheric anomalies detected by dual-frequency GPS observations, but coseismic disturbance (CID) directivity mechanism are not clear. In this paper, response to Mw = 7.9 Alaska earthquake on 23 January 2018 is investigated from about 100 continuous stations near epicenter. fourth-order zero-phase Butterworth band-pass filter with...

10.3390/rs11080901 article EN cc-by Remote Sensing 2019-04-13

Owing to its versatile roles in almost all aspects of plants, FERONIA (FER), a receptor-like kinase the Catharanthus roseus 1-like (CrRLK1L) subfamily, has received extensive research interests during past decades. Accumulating evidence been emerged that FER homologs horticultural crops also play crucial reproductive biology and responses environmental stimuli (abiotic biotic stress factors). Here, we provide review for latest advances studies on modulating crops, further analyze underlying...

10.1007/s44154-024-00161-1 article EN cc-by Stress Biology 2024-06-07

The spatial distribution of plant diversity in urban areas is fundamental to understanding the relationship between urbanization and biodiversity. Previous research has primarily focused on taxonomic levels assess species richness. In contrast, investigations into patterns phylogenetic plants remain limited. This study aims investigate along an urban–rural gradient quantify how degree are related. A survey vascular was conducted at 134 randomly selected sample plots four transects Shanghai,...

10.1007/s10980-024-01958-1 article EN cc-by-nc-nd Landscape Ecology 2024-08-22

Abstract Particulate nitrate (pNO 3 − ) is an important component in atmospheric fine particulate matter. Here, we present a case study investigating the production and loss processes of pNO surface‐layer based on observation at regional site Wangdu North China Plain (NCP) during summer. The averaged diurnal nitric acid (HNO reached maximum 1.5 μg m −3 h −1 determined from observed OH NO 2 , indicating fast HNO surface layer daytime. chemical affecting concentration daily variation were...

10.1029/2021jd035623 article EN Journal of Geophysical Research Atmospheres 2021-09-03
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