A5028478715- Groundwater and Isotope Geochemistry
- Radioactive contamination and transfer
- Radioactivity and Radon Measurements
- Geology and Paleoclimatology Research
- Marine and coastal ecosystems
- Methane Hydrates and Related Phenomena
- Coastal wetland ecosystem dynamics
- Isotope Analysis in Ecology
- Radioactive element chemistry and processing
- Geochemistry and Elemental Analysis
- Heavy metals in environment
- Coastal and Marine Dynamics
- Hydrology and Watershed Management Studies
- Marine Biology and Ecology Research
- Microbial Community Ecology and Physiology
- Oceanographic and Atmospheric Processes
- Mercury impact and mitigation studies
- Cryospheric studies and observations
- Geochemistry and Geologic Mapping
- Atmospheric and Environmental Gas Dynamics
- Flood Risk Assessment and Management
- Geological formations and processes
- Marine Bivalve and Aquaculture Studies
- Hydrology and Sediment Transport Processes
- Fluoride Effects and Removal
East China Normal University
2016-2025
Fujian Institute of Oceanography
2024
Ministry of Natural Resources
2024
Yulin University
2015
Lanzhou University
1966-2005
Institute of Plasma Physics
2005
Hefei University of Technology
2005
Institute of Modern Physics
1966
With intense anthropogenic perturbations in the Changjiang (Yangtze) River basin, riverine loads and compositions of materials into Estuary have greatly changed, resulting dramatic deterioration adjacent sea environments. Based on a long-term data set material Estuary, changing trends associated impacted factors were presented. The results showed downward concentrations dissolved silicate (DSi) over past 50 years due to dam constructions River. However, nitrogen (DIN) inorganic phosphate...
In 2006, the Changjiang basin runoff reached its lowest level in last 50 years, and water Three Gorges Dam (TGD) was raised from 135 m to 156 m. Based on routine measurements at 10 field stations, flood season during years a situation here we describe as “no season” (NFFS). contrast, there no obvious change of mid‐lower reaches river (MLRCR) drought which correspondingly (NDDS)”. The extreme impounding TGD contributed NFFS. However, adjustment replenishment tributaries lakes resulted NDDS....
Abstract Despite comprising a small portion of the earth’s surface, lakes are vitally important for global ecosystem cycling. However, lake systems worldwide extremely fragile and many shrinking due to changing climate anthropogenic activities. Here, we show that Poyang Lake, largest freshwater in China, has experienced dramatic prolonged recession, which began late September 2003. We further demonstrate abnormally low levels appear during October, 28 days ahead normal initiation dry season,...
Abstract Mangroves are blue carbon systems characterized by high soil storage and sequestration. Soil losses via groundwater or pore water pathways potentially important yet poorly understood components of mangrove budgets. Here we quantified submarine discharge (SGD) associated dissolved inorganic (DIC) organic (DOC) fluxes into a mangrove‐dominated tropical bay (Maowei Sea) using radon ( 222 Rn) mass balance model. The SGD in Maowei Sea were estimated to be 4.9 × 10 7 (0.36 ± 0.33 m/day)...
Abstract Saltmarshes are a blue carbon ecosystem accumulating large quantities of organic in sediments. Some this can be transformed into dissolved inorganic (DIC) and methane (CH 4 ) that may eventually exported to the ocean or atmosphere. Although extensive studies have quantified specific components budget such as burial, limited attention has been given pore‐water‐derived total alkalinity (TA) exports ocean. Here, we lateral (outwelling) 202 ± 160 78 75 mmol m −2 d −1 DIC TA,...
Abstract Terrestrial groundwater travels through subterranean estuaries before reaching the sea. Groundwater‐derived nutrients drive coastal water quality, primary production, and eutrophication. We determined how dissolved inorganic nitrogen (DIN), phosphorus (DIP), organic (DON) are transformed within estimated submarine discharge (SGD) nutrient loads compiling > 10,000 samples from 216 sites worldwide. Nutrients exhibited complex, nonconservative behavior in estuaries. Fresh DIN DIP...
Abstract The biogenic elements concentrations in a coastal bay/estuary are strongly influenced not only by riverine input but also submarine groundwater discharge (SGD) which has been identified as typical process of land/ocean interactions zones. To assess the role SGD nutrient fluxes Southern Yellow Sea (SYS), 228 Ra activities were measured seawater collected May 2014. Analyzing sources and sinks Ra, flux excess through was estimated to be (2.2 ± 1.0) ×10 15 dpm yr −1 . Based on mass...
Abstract Nutrient concentrations in coastal bays and estuaries are strongly influenced by not only riverine input but also submarine groundwater discharge (SGD). Here we estimate the SGD fluxes of associated dissolved inorganic nitrogen (DIN), phosphorus (DIP), silicon (DSi) into Bohai Sea based on a 226 Ra 228 mass balance model. This procedure shows that average radium activities (dpm 100 L −1 ) 42.8 ± 6.3 ( Ra) 212 41.7 for surface water 43.0 6.1 216 38.4 near‐bottom water. According to...
Abstract Submarine groundwater discharge (SGD) has been recognized as an important pathway for nutrients into estuaries, coasts, and the adjacent seas. In this study, 222 Rn was used to estimate SGD‐associated nutrient fluxes aquaculture area in a typical tropical bay (Maowei Sea, China). The SGD Maowei Sea during June 2016 estimated be 0.36 ± 0.33 m d −1 associated with SGD‐derived dissolved inorganic nitrogen (DIN), phosphorus (DIP), silicon (DSi) (mol ) of (4.5 5.5) × 10 6 , (5.3 9.1) 4...
Abstract. 7Be and 210Pb air concentration depositional flux data provide key information on the origins movements of masses, as well atmospheric deposition processes residence time aerosols. After their onto Earth's surface, they are utilized for tracing soil redistribution land, particle dynamics in aquatic systems, mixing open ocean. Here we present a global dataset measurements made by large number research communities. Data were collected from published papers between 1955 early 2020. It...
The chelating resin was studied to assess its influence on metal availability and mobility in the environment. association of organic−inorganic colloid-borne trace elements investigated this work. radionuclide 243Am(III) chosen as representative chemical homologue for trivalent lanthanide actinide ions present radioactive nuclear waste. kinetic dissociation behavior from humic acid-coated γ-Al2O3 at pH values 4.0 ± 0.1, 5.0 0.2, 6.0 0.2 with a contact time 2 days after addition cation...
Iodine occurs in multiple oxidation states aquatic systems the form of organic and inorganic species. This feature leads to complex biogeochemical cycling stable iodine its long-lived isotope, 129I. In this study, we investigated sorption, transport, interconversion species by comparing their mobility groundwaters at ambient concentrations (10–8 10–7 M) those artificially elevated (78.7 μM), which often are used laboratory analyses. Results demonstrate that greatly depends on, addition type...
Abstract “Mobile mud” (MM), which has fine grain size distribution (>90% clay + silt, and <5% sand) high porosity (≥0.50), plays an important role in the biogeochemical cycles estuarine areas inshore shelf. A suite of MM samples from coastal area East China Sea (ECS) was collected spring summer 2011 to observe their spatial temporal distribution, size, radionuclides concentrations. The thickness ranged 0.5 11 cm (average: 2.2 (May) 3.9 (August)). thick mud layer is mainly distributed...