A5102978751- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Wastewater Treatment and Nitrogen Removal
- Microbial Community Ecology and Physiology
- Oceanographic and Atmospheric Processes
- Soil and Water Nutrient Dynamics
- Isotope Analysis in Ecology
- Atmospheric and Environmental Gas Dynamics
- Aquatic Ecosystems and Phytoplankton Dynamics
- Methane Hydrates and Related Phenomena
- Arsenic contamination and mitigation
- Water Quality and Pollution Assessment
- Water Quality Monitoring and Analysis
- Heavy Metal Exposure and Toxicity
- Soil erosion and sediment transport
- Burn Injury Management and Outcomes
- Geological and Geophysical Studies
- Injury Epidemiology and Prevention
- Coastal wetland ecosystem dynamics
- Water-Energy-Food Nexus Studies
- Cardiovascular Syncope and Autonomic Disorders
- Geochemistry and Elemental Analysis
- Global Public Health Policies and Epidemiology
- Child Nutrition and Water Access
- Marine Bivalve and Aquaculture Studies
Ocean University of China
2013-2024
Qingdao National Laboratory for Marine Science and Technology
2015-2024
Abstract. Benthic nitrogen transformation pathways were investigated in the sediment of East China Sea (ECS) June 2010 using 15N isotope pairing technique. Slurry incubations indicated that denitrification, anammox and dissimilatory nitrate reduction to ammonium (DNRA) as well intracellular release occurred ECS sediments. These four processes did not exist independently, therefore diluted labeling fraction NO3−, a part 15NH4+ derived from DNRA also formed 30N2 via anammox. Therefore, current...
The 15N isotope pairing technique is widely used to quantify anammox, denitrification, and dissimilatory nitrate reduction ammonium (DNRA) in sediments. However, the effects of DNRA on anammox denitrification slurry incubations genuine N2 production intact core have not been fully explored. We developed a mathematical model describing these DNRA, tested this field computational studies. Our calculations revealed that for presence tends under -and overestimate actual rates, respectively, when...
Abstract The effects of bottom water oxygen concentration on sediment uptake, penetration depth, nitrate and ammonium fluxes, anammox, denitrification, dissimilatory reduction to ammonium, nitrification, mineralization were investigated off the Changjiang estuary its adjacent East China Sea, by combining a seasonal comparison with three artificially induced conditions (oxic, ambient, severe hypoxia). A 50% decrease in in‐situ concentrations between May August, led decreases average uptake...
Abstract The Kuroshio intrusion from the West Philippine Sea (WPS) and mesoscale eddies are important hydrological features in northern South China (SCS). In this study, absorption fluorescence of dissolved organic matter (CDOM FDOM) were determined to assess impact these on DOM dynamics SCS. upper 100 m SCS had higher absorption, fluorescence, degree humification than Current WPS. results an isopycnal mixing model showed that CDOM humic‐like FDOM inventories modulated by intrusion. However,...
Abstract Nitrogen transfer processes and NO 3 − sources in the East China Sea (ECS) were analyzed using dual isotopes of 2 , concentration dissolved O N gases, nutrient concentrations, hydrological conditions. It was clear that δ 15 18 values Changjiang freshwater 5.6–6.6‰ 0.6–1.0‰, respectively, affected by human activities (fertilizer, sewage, manure) nitrification. Off Estuary to ECS continental slope, lower or exhausted upper water layers, where both available for high related...
Abstract Methanol metabolism can play an important role in marine carbon cycling. We made contemporaneous measurements of methanol concentration and consumption rates the northwest Pacific Ocean to constrain pathways dynamics was detected relatively low concentrations (<12–391 nM), likely due rapid biological turnover. Rates oxidation CO 2 (0.9–130.5 nmol L −1 day ) were much higher than those assimilation into biomass (0.09–6.8 ), suggesting that >89.7% utilized as energy source....
Abstract. Benthic nitrogen transformation pathways were investigated in the sediment of East China Sea June 2010 using 15N isotope pairing technique. Slurry incubations indicated that denitrification, anammox and dissimilatory nitrate reduction to ammonium (DNRA) as well release by storing organisms occurred sediments. These four processes did not exist independently, therefore diluted labeling fraction NO3−, a part 15NH4&amp;plus; derived from DNRA also formed 30N2 via anammox....
Abstract The ocean is a source of atmospheric methane (CH 4 ), but there are still large uncertainties in the estimations global oceanic CH emission due to sparse data coverage. In this study, we investigated spatial distribution and influencing factors Western North Pacific (WNP) during May–June 2021. High‐resolution continuous underway measurements showed that surface concentrations indicated an obvious gradient with increase from south north influence water mixing between Kuroshio...
Objective: To investigate and evaluate the epidemiological characteristics of patients under 14 with large area burns in China. Methods: Data pediatric aged 0-14yr ≥30% total body surface (TBSA) burned admitted into 106 burn centers mainland China 2014 were retrieved. The children divided three age groups: 0-3, 4-6 7-14 years according to age. Information age, gender, time injury, causes burns, admission time, prehospital emergency care wound, area, inhalation injuries, case fatality rate...
Nitrous oxide (N2O) is an important greenhouse gas and has a great impact on global warming. Affected by human activities, rivers, reservoirs have become active sites for N2O production emission. In Three Gorges Reservoir the downstream Yangtze River, concentrations fluxes of dissolved were investigated in September-October 2009 October 2016 to identify factors controlling distribution reservoir effect damming operation emission from River. The concentration ranged 9.74 16.36 nmol·L-1 with...
Benthic nitrogen cycling, including nitrification, N-loss, and other transformations, plays a crucial role in the marine budget. However, studies on benthic cycling mainly focus marginal seas, while attention to deep ocean, which occupies largest area of seafloor, is severely lacking. In this study, we investigate Kuroshio Extension region (KE) northwest Pacific Ocean at water depths greater than 5,000 m through 15 N enrichment slurry incubation pore-water dissolved oxygen inorganic...
From 1999 to 2015, there were 6 186 cases of leukemia deaths in tianjin residents, the males accounted for 58.28% (3 605) and 52.31% 236) lived urban areas; crude mortality rate Leukemia increased from 3.47/100 000 4.28/100 [t=7.09, P<0.001, annual percent change (APC)=1.30%] standardized decreased 3.15/100 3.01/100 (t=-2.95, P=0.006, APC=-0.65%). Special attention should be focused on children, elderly, rural residents.1999—2015年天津市居民白血病死亡病例共6...