A5110408506- Geology and Paleoclimatology Research
- Pleistocene-Era Hominins and Archaeology
- Geological formations and processes
- Isotope Analysis in Ecology
- Archaeology and ancient environmental studies
- Methane Hydrates and Related Phenomena
- Toxic Organic Pollutants Impact
- Hydrocarbon exploration and reservoir analysis
- Pesticide and Herbicide Environmental Studies
- Landslides and related hazards
- Geological and Geophysical Studies
- Effects and risks of endocrine disrupting chemicals
- Climate change and permafrost
- Microbial Community Ecology and Physiology
- Tree-ring climate responses
- Environmental Toxicology and Ecotoxicology
- Distributed Sensor Networks and Detection Algorithms
- Fault Detection and Control Systems
- Military Defense Systems Analysis
- Soil Carbon and Nitrogen Dynamics
- Heavy metals in environment
- Machine Learning and ELM
- Atmospheric Ozone and Climate
- Guidance and Control Systems
- Paleontology and Stratigraphy of Fossils
Institute of Earth Environment
2016-2025
Chinese Academy of Sciences
2016-2025
Air Force Engineering University
2019
State Key Laboratory of Loess and Quaternary Geology
2012-2013
The complicity of long-term land surface temperature (LST) changes has been under investigated and less understood, hindering our understanding the history mechanism terrestrial climate change. Here, we report longest (800 thousand years) LSTs based on distributions soil fossil bacterial glycerol dialkyl tetraethers preserved in well-dated loess-paleosol sequences at center Chinese Loess Plateau. We have found a previously-unrecognized increasing early prolonged warming pattern toward...
Abstract A comprehensive understanding of the processes and mechanisms driving Holocene temperature changes is crucial for resolving ongoing controversy. Here, we reconstructed land surface (LST) variations over past 27,000 years in two loess‐paleosol profiles from Chinese Loess Plateau based on soil bacterial lipid signatures. By combining our data with other published records derived same proxy, identify notable spatial inconsistencies LST trends across geographically proximate areas...
Abstract Record of long‐term land temperature changes remains ephemeral, discontinuous, and isolated, thus leaving the common view that Pleistocene evolution should have followed ocean temperatures unconfirmed. Here, we present a continuous surface reconstruction in Asian monsoon region over past 3.0 Myr based on distribution soil bacterial lipids from Chinese Loess Plateau. The record indicates an unexpected warming trend Pleistocene, which is opposite to cooling temperatures, resulting...
Abstract Ratios of glycerol dialkyl tetraethers (GDGT), which are membrane lipids bacteria and archaea, at the base several paleoenvironmental proxies. They frequently applied to soils as well lake‐ marine sediments generate records past temperature soil pH. To derive meaningful environmental information from these reconstructions, high analytical reproducibility is required. Based on submitted results by 39 laboratories across world, employ a diverse range quantification methods, we...
Abstract The Chinese loess-paleosol sequences provide important archives for studying paleoenvironmental changes. However, the lack of independent and accurate time scales hinders study between loess other records. Asian stalagmite δ18O records indicate synchronous patterns paleoprecipitation over large geographic regions. record hydrogen isotopic composition plant wax (δDwax) in is also controlled by rainwater δD. Both share a common origin. linear relationship rainfall δD variance provides...
Bacterial branched glycerol dialkyl tetraethers (brGDGTs) are emerging as one of the most promising tools for quantifying past temperatures across a large variety continental settings. However, temperature-independent parameters such ratio 6-methyl vs. 5-methyl brGDGTs and bacterial community composition, might contribute to high uncertainty brGDGT paleothermometer. In this work, we investigated distributions in surface soils surrounding Lake Qinghai, reanalyzed previously published data....
The concentrations and distributions of organochlorine pesticides in multiple matrices (soil, water, sediment) along the Bahe River were determined. Overall, levels total hexachlorocyclohexanes (HCHs) sediments, soils detected by GC-μECD ranged from n.d. to 0.74 ng/L, 1.02 ng/g, 0.02 0.32 respectively. dichlorodiphenyltrichloroethanes (DDTs) 7.51 0.29 0.03 2.00 relationships between parent compounds their metabolite used assess source (OCPs). low α-HCH/γ-HCH ratios indicated that technical...
The chronology of geological records in lacustrine, peatland and marine sediments for the late glacial depends mainly on 14C dating technology, which provides basic database global paleoclimate research. However, reservoir correction always challenges accuracy terrestrial uncertainty associated with carbon effect becomes critical high resolution studies. Here, based hypothesis synchronization precipitation isotopes, we verify identify a series in-phase points isotopes (IPPIs) between...
Currently, the climatic implications associated with Cenozoic tectonic history and growth mechanisms of Tibetan Plateau lack consensus remain controversial. This is due in part to chronological uncertainties few paleoelevation records distributed central northern Plateau, which we address here development a robust chronology (using magnetostratigraphy, biostratigraphy, detrital zircons, regional radiochronologic dating) reconstruction for Tuotuohe Basin (central-northern Tibet). We refined...
Precipitation isotopic composition variations that are directly recorded in geological samples play an important role understanding past hydroclimatic changes. In arid regions, the hydrogen isotopes of leaf wax (δDwax) loess sections can provide records summer precipitation isotopes. However, previous studies have primarily focused on orbital scale, and there was still a lack clear shorter timescales their implications for climate change. this study, we report centennial-resolution δDwax...