A5100324959- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Marine and coastal ecosystems
- Methane Hydrates and Related Phenomena
- Geological formations and processes
- Oceanographic and Atmospheric Processes
- Pleistocene-Era Hominins and Archaeology
- Ocean Waves and Remote Sensing
- Archaeology and ancient environmental studies
- Geological and Geophysical Studies
- Microbial Community Ecology and Physiology
- Tropical and Extratropical Cyclones Research
- Hydrocarbon exploration and reservoir analysis
- Coastal wetland ecosystem dynamics
- Marine Biology and Ecology Research
- Soil and Water Nutrient Dynamics
- Wave and Wind Energy Systems
- Paleontology and Stratigraphy of Fossils
- Maritime and Coastal Archaeology
- earthquake and tectonic studies
- Geological Studies and Exploration
- Toxic Organic Pollutants Impact
- Groundwater and Isotope Geochemistry
- Pacific and Southeast Asian Studies
- Soil Carbon and Nitrogen Dynamics
Ocean University of China
2014-2025
Qingdao National Laboratory for Marine Science and Technology
2017-2025
Guangdong Academy of Sciences
2025
Laoshan Laboratory
2024
Institute of Oceanology
2015-2024
Chinese Academy of Sciences
2024
Jinan University
2015-2023
Beijing Normal University
2021
Guangxi University for Nationalities
2021
Northeast Agricultural University
2016-2019
ABSTRACT Deep‐sea sediments contain a large number of Thaumarchaeota that are phylogenetically distinct from their pelagic counterparts. However, ecology and evolutionary adaptations not well understood. Metagenomic analyses were conducted on samples various depths 750‐cm sediment core collected the Mariana Trench Challenger Deep. The abundance archaeal amoA generally decreased with depth, except for an unexpected peak midway through core. thaumarchaeotal metagenome‐assembled genomes...
Phosphorus (P) is an essential macronutrient for the survival of marine phytoplankton. In present study, phytoplankton response to phosphorus limitation was studied by proteomic profiling in diatom Phaeodactylum tricornutum both cellular and molecular levels. A total 42 non-redundant proteins were identified, among which 8 found be upregulated 34 downregulated. The results also showed that associated with inorganic phosphate uptake downregulated, whereas involved organic such as alkaline...
Abstract Hadal trenches are characterized by enhanced and infrequent high-rate episodic sedimentation events that likely introduce not only labile organic carbon key nutrients but also new microbes significantly alter the subseafloor microbiosphere. Currently, role of in controlling composition hadal microbiosphere is unknown. Here, analyses isotope a ~ 750 cm long sediment core from Challenger Deep revealed noncontinuous deposition, with anomalous 14 C ages caused seismically driven mass...
To isolate a fucoidan-utilizing strain from seawater for sea cucumber fucoidan degradation.The utilization of was monitored by H(2)SO(4)-phenol assay neutral sugar. The bacterium CZ1127 isolated and shown to have relatively large maximum rate 81.5%. confirmed belong the family Flavobacteriaceae 16S rDNA physiological analyses. This has an ability utilize fucoidans extracted various cucumbers different degrees. Both extracellular intracellular enzymes could degrade fucoidan, as...
Abstract Deepwater circulation plays a central role in global climate. Compared with the Atlantic, Pacific deepwater circulation's history remains unclear. The Luzon overflow, branch of North deep water, determines ventilation rate South China Sea (SCS) basin. Sedimentary magnetic properties SCS reflect millennial‐scale fluctuations current intensity and orientation. data suggest slightly stronger at Last Glacial Maximum compared to Holocene. But, most striking increase occurred during...
Abstract Estuaries sit at the land‐ocean boundary and act as natural reactors for nitrogen (N) transformations among numerous forms. Superimposing onto physical mixing, biological processes lead to nonconservative N behavior in estuaries. Under coinfluences of alteration multiple end‐members, however, some species can exhibit apparent conservation. To explore dynamics potential mechanisms that modulate mixing behaviors, we measured concentrations isotopic compositions (nitrate: NO 3 − ,...
Poor soil structure and nutrients, excessive exchangeable Na+, high pH as well low enzyme activities are common in the solonetz, significantly restrict corn (Zea mays L.) production. Cattle manure application combined with deep tillage is an important management practice that can affect physico-chemical properties yield solonetz. Field experiments were carried out a randomized complete block design comprising four treatments: Corn conventional was used control, film mulching aluminium...
Rapid industrialization in China has led to widespread soil contamination, particularly with heavy metals like cadmium (Cd). This study investigates Cd accumulation and translocation 12 commercial maize cultivars grown on contaminated soils. Initial concentrations averaged 0.68 mg kg-1, exceeding safe limits for agricultural Post-harvest results indicated that the concentration decreased under all cultivars, values ranging from 0.25 0.55 indicating effective uptake by maize. The...
Research Article| July 01, 2017 Millennial-scale ocean dynamics controlled export productivity in the subtropical North Pacific Dawei Li; Li 1State Key Laboratory of Marine Environmental Science, Xiamen University, No. 422, Siming South Road, 361102, China Search for other works by this author on: GSW Google Scholar Li-Wei Zheng; Zheng Samuel L. Jaccard; Jaccard 2Institute Geological Sciences and Oeschger Center Climate Change Research, University Bern, Baltzerstrasse 3, Bern 3012,...