A5032398155- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Geological formations and processes
- Peatlands and Wetlands Ecology
- Hydrocarbon exploration and reservoir analysis
- Isotope Analysis in Ecology
- Coastal wetland ecosystem dynamics
- Archaeology and ancient environmental studies
- Pleistocene-Era Hominins and Archaeology
- Climate change and permafrost
- Paleontology and Stratigraphy of Fossils
- Tree-ring climate responses
- Groundwater and Isotope Geochemistry
- Water Quality and Pollution Assessment
- Geological and Geophysical Studies
- Rangeland Management and Livestock Ecology
- Marine Biology and Ecology Research
- Ideological and Political Education
- Remote Sensing and Land Use
- Marine and coastal plant biology
- Linguistics and Cultural Studies
- Educational Challenges and Innovations
- Agricultural Productivity and Crop Improvement
- Ethics in Business and Education
- Genomics and Phylogenetic Studies
Northwest University
2016-2025
State Key Laboratory of Continental Dynamics
2015-2024
Fuzhou University
2023
Chinese Academy of Sciences
2005-2022
Institute of Earth Environment
2005-2022
State Key Laboratory of Loess and Quaternary Geology
2021
University of Bristol
2014-2016
Yunnan University
2015
China University of Geosciences
2009
Institute of Botany
2005
• Analysis of brGDGT distributions in global peat dataset. Correlation with pH and mean annual air temperature. Development peat-specific temperature proxies. Glycerol dialkyl glycerol tetraethers (GDGTs) are membrane-spanning lipids from Bacteria Archaea that ubiquitous a range natural archives especially abundant peat. Previous work demonstrated the distribution bacterial branched GDGTs (brGDGTs) mineral soils is correlated to environmental factors such as (MAAT) soil pH. However,...
Variations in atmospheric circulation across the last deglaciation northernmost monsoon-influenced regions of Asia are not well constrained, highlighting a fundamental gap our understanding Asian climate. Here we reconstruct continental air temperatures for northeast China (past 16 k.y.), based on distribution bacterial branched glycerol dialkyl tetraethers sequence Hani peat (Jilin Province, China). Our results indicate large (as much as 10 °C) oscillations temperature deglaciation,...
Hopanoids are pentacyclic triterpenoids produced by a wide range of bacteria. Within modern settings, hopanoids mostly occur in the biological 17β,21β(H) configuration. However, some peatlands, C31 hopane is present as 'thermally-mature' 17α,21β(H) stereoisomer. This has traditionally been ascribed to isomerisation at C-17 position catalysed acidic environment. recent work argued that temperature and/or hydrology also exert control upon isomerisation. Such findings complicate application...
Atmospheric methane concentrations decreased during the early to middle Holocene; however, governing mechanisms remain controversial. Although it has been suggested that mid-Holocene minimum emissions are associated with hydrological change, direct evidence is lacking. Here we report a new independent approach, linking change in peat sediments from Tibetan Plateau changes archaeal diether and diploptene δ(13)C values as tracers for methanogenesis methanotrophy, respectively. A inferred...
Research Article| September 01, 2011 Plant-wax hydrogen isotopic evidence for postglacial variations in delivery of precipitation the monsoon domain China Osamu Seki; Seki 1Institute Low Temperature Science, Hokkaido University, N19W8, Kita-ku, Sapporo 060-0819, Japan Search other works by this author on: GSW Google Scholar Philip A. Meyers; Meyers 2Department Geological Sciences, University Michigan, Ann Arbor, Michigan 48109-1005, USA Shinya Yamamoto; Yamamoto Kimitaka Kawamura; Kawamura...
Abstract Understanding regional hydroclimate and its driving mechanisms is important for accurate projections of hydrology variations in the future. This study provides a record over past 5.7 ka based on speleothem climatic proxies from Jiuxian cave, central China. Our suggests that coupling between sea surface temperatures (SST) Indo‐Pacific warm pool (IPWP) positioning Western Pacific Subtropical High (WPSH) modulate both spatial heterogeneity hydrological conditions millennial‐centennial...
Abstract Archaeal membrane lipids are markedly distinct from those in bacteria and eukaryotes, serving as unique biomarkers for unraveling their ecological biogeochemical roles. Recent advancements lipidomics have facilitated detailed cellular-level characterizations of lipid compounds. However, the lack a comprehensive dedicated database has severely limited large-scale, high-throughput investigations archaeal lipids. We present ArchLips, containing 218,868 silico molecular structures...
Large amounts of carbon sequestered in permafrost on the Tibetan Plateau (TP) are becoming vulnerable to microbial decomposition a warming world. However, knowledge about how responsible community responds warming-induced thaw TP is still limited. This study aimed conduct comprehensive comparison communities and their functional potential active layer thawing TP. We found that were diverse varied across soil profiles. The diversity declined relative abundance Chloroflexi, Bacteroidetes,...