Zhiyang Li

Zhiyang Li
Guangdong Agriculture Industry Bussiness Polytechnic · College of Tropical Agriculture and Forestry

PhD

About

14
Publications
2,885
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133
Citations
Additional affiliations
January 2017 - present
Independent Researcher
Position
  • Professor (Associate)
Description
  • Carbon and Nitrogen Biogeochemistry

Publications

Publications (14)
Article
The decrease of river runoff caused by the intensified human activities (e.g. artificial dams) and increasing intrusion of high salinity water in the coastal bays have become a worldwide environmental problem. However, the mixing can hardly be identified by traditional method with temperature and salinity due to the complicated water sources in the...
Article
Full-text available
A new data set of seasonal stable water isotopes (δD and δ¹⁸O) and temperature‐salinity profiles was applied to improve our understanding of water mass distributions and their impact on the environment of the Beibu Gulf (BG). Our study revealed that the coastal current (CC), West‐Guangdong coastal current (WGCC), and South China Sea water (SCSW) we...
Article
Atmospheric ammonia (NH3) is a precursor of the ammonium (NH4⁺) in rainwater and aerosol. However, relations among them are largely unknown, which preventing our understanding from the sources and spatio-temporal variability of the NH4⁺ in rainwater and aerosol. Concentration and stable nitrogen isotope (δ¹⁵N) of NH4⁺ were measured in bulk depositi...
Article
In this study, we present high-resolution δ¹⁵N records of organic nitrogen (δ¹⁵Norg) from the northern inner shelf of the South China Sea (SCS) to reveal nitrogen processes in the coastal environment over the last 7500 years. To remove the bias effect from inorganic nitrogen (IN), mainly terrestrial clay lattice-fixed ammonia, on total/bulk nitroge...
Article
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The impact of typhoons on the ecology of the ocean has been observed using high‐accuracy satellite remote sensing data. However, few field observations in the ocean have been conducted to understand the effect of typhoons on the biogeochemistry because typhoon is furious, dangerous, and unpredictable. Here, we investigated the impact of Typhoon Wip...
Article
Full-text available
Nitrogen isotope of ammonium (δ¹⁵N-NH4 ⁺) in the wet deposition in Zhanjiang, a typical tropical city in the southernmost region of mainland China, were analyzed from October 2015 to November 2018 in order to examine the monthly variations and identify the sources of ammonia. The NH4 ⁺ exhibited higher concentrations during the dry season than the...
Article
Thaumarchaeota, as an ammonia oxidizing archaea (AOA), is crucial for modern marine nitrogen cycling; however, little is known about its history during the Quaternary climate change. Here, isoprenoidal glycerol dialkyl glycerol tetraethers (GDGTs), biomarkers of Thaumarchaeota, were used to trace the role of AOA in the South China Sea (SCS) for the...
Article
Full-text available
Terrestrial nitrogen (N) cycling is closely associated with precipitation and crucial to ecosystem, which has been receiving great concerns at the backdrop of global climate change. In addition to modern investigations, paleo record of N cycling may provide valuable clues about how ecosystem N responds to climate change. Here we measured soil organ...
Article
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The ubiquitous occurrence of glycerol dialkyl glycerol tetraethers (GDGTs) in soils and their ability to record temperature and environmental changes offer the prospect of independently reconstructing continental paleotemperature and paleoenvironment from the loess-paleosol sequences (LPS) from the Chinese Loess Plateau (CLP). In this study we pres...
Article
Aeolian deposition in the central North Pacific has been well recognized to originate from arid Asian interior. While there is no doubt about the transport of organic matters along with the mineral dust from the source region, little is known about the nature and changes of the terrestrial organic compounds preserved in the deep sea sediments. In t...
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Full-text available
A sedimentary delta(15)N record in the equatorial western Pacific (WP) shows glacial-interglacial variability from 6.2 to 11.2 parts per thousand during the last two climatic cycles, similar to the denitrification record in the eastern tropical Pacific (ETP). Contrastively, a record in the South China Sea (SCS) exhibits less changes from 4.4 to 6.4...
Article
Full-text available
Nitrogen isotopic (δ15N) analysis is widely applied in palaeoceanography, palaeolimnology and soil science. Most measurements are performed on untreated bulk samples containing both organic and inorganic nitrogen (ON and IN), which could sometimes confound isotopic signals. Here we propose a sample pretreatment method to physically and quantitative...

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