A5060900445- Marine and coastal ecosystems
- Ocean Acidification Effects and Responses
- Marine Biology and Ecology Research
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Oceanographic and Atmospheric Processes
- Methane Hydrates and Related Phenomena
- Geochemistry and Elemental Analysis
- Geological and Geophysical Studies
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Groundwater and Isotope Geochemistry
- Radioactive contamination and transfer
- Microbial Community Ecology and Physiology
- Silicon Effects in Agriculture
- Marine Bivalve and Aquaculture Studies
- Paleontology and Stratigraphy of Fossils
- Coastal wetland ecosystem dynamics
- Science, Research, and Medicine
- Marine and Coastal Ecosystems
- Heavy metals in environment
- Nuclear Physics and Applications
- Geophysics and Gravity Measurements
- Biotechnology and Related Fields
- Environmental Changes in China
Sichuan Agricultural University
2025
Xiamen University
2015-2024
Chinese Center For Disease Control and Prevention
2019
Xiamen University of Technology
2016
GEOMAR Helmholtz Centre for Ocean Research Kiel
2015
This review examines the current understanding of global coastal ocean carbon cycle and provides a new quantitative synthesis air-sea CO 2 exchange. reanalysis yields an estimate for globally integrated flux −0.25 ± 0.05 Pg C year −1 , with polar subpolar regions accounting most removal (>90%). A framework that classifies river-dominated margin (RiOMar) ocean-dominated (OceMar) systems is used to conceptualizecoastal processes. The dynamics in three contrasting case study regions, Baltic...
Nitrogen fixation is critical for the biological productivity of ocean, but clear mechanistic controls on this process remain elusive. Here, we investigate abundance, activity, and drivers nitrogen-fixing diazotrophs across tropical western North Pacific. We find a basin-scale coherence diazotroph abundances N2 rates with supply ratio iron:nitrogen to upper ocean. Across threshold increasing ratios, abundance nifH genes increased, phosphate concentrations decreased, bioassay experiments...
A bstract The contemporary coastal ocean, characterized by abundant nutrients and high primary productivity, is generally seen as a significant CO 2 sink at the global scale. However, mechanistic understanding of ocean carbon cycle remains limited, leading to unanswered question why some systems are sources while others sinks atmospheric . Here we proposed distinct physical‐biogeochemical setting, Ocean‐dominated Margin (OceMar), in order for better shaping concept study. OceMars, contrast...
Abstract. Based on four cruises covering a seasonal cycle in 2009–2011, we examined the impact of Kuroshio intrusion, featured by extremely oligotrophic waters, nutrient inventory central northern South China Sea (NSCS). The upper 100 m water column study area ranged from ∼200 to ∼290 mmol m−2 for N + (nitrate plus nitrite), ∼13 ∼24 soluble reactive phosphate and ∼210 ∼430 silicic acid. showed clear pattern with highest value appearing summer, while spring winter had reduction ∼30%,...
We examined diurnal variations of surface seawater p CO 2 (partial pressure ) in a suite coastal marine environmental systems the vicinity South China Sea (SCS) from inshore and nearshore settings Xiamen Bay, Shenhu southwestern Taiwan Strait, to offshore sites basin on slope northern as well coral reef system at Xisha Islands middle SCS. There were significant changes , ranging 1.0 Pa 1.6 (10‐16 µatm) oligotrophic sites, ~4.1 5.1‐15.2 Bay high 60.8 Islands. Processes that modulate these...
National Basic Research Program of China (973 Program) [2009CB421201]; Science Foundation (NSFC) [90711005, 40821063]; NSFC-RGC [40731160624, N_HKUST623/07]; SCOPE project
Abstract Subtropical gyres cover 26%–29% of the world's surface ocean and are conventionally regarded as deserts due to their permanent stratification, depleted nutrients, low biological productivity. Despite tremendous advances over past three decades, particularly through Hawaii Ocean Time‐series Bermuda Atlantic Study, which have revolutionized our understanding biogeochemistry in oligotrophic marine ecosystems, remain understudied. We review current upper North Pacific Gyre, considering...
Global coastal oceans as a whole represent an important carbon sink but, due to high spatial-temporal variability, mechanistic conceptualization of the cycle is still under development, hindering modelling and inclusion in Earth System Models. Although temperature considered control sea surface pCO2, we show that latitudinal distribution global pCO2 does not match temperature, its inter-seasonal changes are substantially regulated by non-thermal factors such water mass mixing net primary...
Abstract Nutrients limiting phytoplankton growth in the ocean are a critical control on productivity and can underpin predicted responses to climate change. The extensive western subtropical North Pacific is assumed be under strong nitrogen limitation, but this not well supported by experimental evidence. Here, we report results of 14 factorial nitrogen–phosphorus–iron addition experiments through Philippine Sea, which demonstrate gradient from limitation north nitrogen–iron co‐limitation...
ABSTRACT Exploring the regional precipitation concentration index (PCI) provides profound insights into distribution patterns of rainfall within a specific area. This study utilised daily data from Sichuan Province to investigate spatiotemporal variations PCI on annual and seasonal scales, as well its potential relationships with Pacific Decadal Oscillation (PDO) El Niño‐Southern (ENSO). A modified Mann‐Kendall test was employed identify significant trends in PCI. Furthermore, this examined...
The first inter-calibration study of the stable silicon isotope composition dissolved silicic acid in seawater,<italic>δ</italic><sup>30</sup>Si(OH)<sub>4</sub>, is presented as a contribution to international GEOTRACES program.
National Basic Research Program of China (973 Program) [2009CB421201, 2009CB421206]; Science Foundation (NSFC) [40821063, 90711005]; South Sea Institute Oceanology, the Chinese Academy Sciences
Abstract We present a unique water column data set of dissolved inorganic carbon (DIC) and total alkalinity (TAlk) from cruise to the western Indonesian Seas during southeast monsoon, covering Karimata Strait, Java Sea, Sunda Strait. Salinity‐normalized TAlk (NTAlk) in surface ranged 2,297–2,348 μmol kg −1 , very close typical values observed tropical ocean. In Kapuas River plume was observed, featuring low salinity, DIC, TAlk. where waters were well mixed, we relatively homogeneous...
Abstract We examined the distribution and seasonality of dissolved organic carbon (DOC) based on a large data set collected from northern South China Sea (NSCS) shelf under complex circulation schemes influenced by river plume, coastal upwelling, downwelling. The highest surface values ∼117 μmol L −1 were observed nearshore in summer suggesting high DOC supplies inputs, whereas lowest ∼62 outer winter due to entrainment DOC‐poor subsurface water strengthened vertical mixing. While upwelling...
Abstract Stable barium isotopes are a potential proxy for riverine inputs into the ocean that reflect monsoon variability and climate change. However, dissolved Ba isotope (δ 138 DBa ) geochemistry in river estuaries, dynamic land to transition zone, has rarely been systematically examined date. Here, we show significant fractionation occurs at near‐zero salinities Yangtze Pearl River Estuary, whereas conservative mixing dominates δ distributions beyond low salinities, which well predicted...
Abstract The (sub)tropical western North Pacific is potentially an area of intense nitrogen (N 2 ) fixation in the global ocean, despite limited understanding flux and controlling factors. We conducted high‐resolution observations from 2016 to 2021 this region used machine learning algorithms simulate N flux. Models estimated 5.72 6.45 Tg yr −1 , with strong seasonal variation peak rates summer. Subtropical Gyre Kuroshio Current contributed more than did adjacent areas. suggested that sea...