A5065765224- Geology and Paleoclimatology Research
- Geological formations and processes
- Aeolian processes and effects
- Landslides and related hazards
- earthquake and tectonic studies
- Pleistocene-Era Hominins and Archaeology
- Tree-ring climate responses
- Archaeology and ancient environmental studies
- Plant Virus Research Studies
- Flood Risk Assessment and Management
- Geological and Geochemical Analysis
- Maritime and Coastal Archaeology
- Hydrology and Sediment Transport Processes
- Geological and Geophysical Studies
- Remote Sensing and Land Use
- Plant Diversity and Evolution
- Methane Hydrates and Related Phenomena
- Isotope Analysis in Ecology
- Geomagnetism and Paleomagnetism Studies
- Hydrocarbon exploration and reservoir analysis
- Plant Ecology and Soil Science
- Translation Studies and Practices
- Quality and Safety in Healthcare
- Insect and Pesticide Research
- Insect-Plant Interactions and Control
Shaanxi Normal University
2014-2025
Sanya University
2025
Zhejiang University
2024-2025
China National Rice Research Institute
2024-2025
State Key Laboratory of Rice Biology
2024-2025
Guangzhou University
2024
Kunming Medical University
2024
Chengdu University of Information Technology
2023
Nanjing University
2008-2012
Northwest Normal University
2012
Dune fields in parts of northern China contain important stratigraphic records late Quaternary change the East Asian monsoon. In this study, 33 new optically stimulated luminescence (OSL) ages and other measurements from aeolian sediment sections are used to reconstruct timing wet‐dry climate variation Mu Us Otindag dune north China. The results indicate activity dry last few hundred years, 14 ka about 7–8 ka, 50 60 ka. dunes were mainly stable, implying a wetter climate, between 2.4 These...
Previous palaeoclimatic studies in the northeastern Qinghai-Tibetan Plateau (NETP) during Holocene, mainly using lake sediments, have deepened our understanding of climatic system this remote region. The timing and forcing mechanisms change region are still controversial, however. Aeolian sand silt deposits, which widely distributed NETP, can be readily dated by optically stimulated luminescence (OSL) techniques reveal sensitive response landscape to change. In study, aeolian loess at six...
Dune systems can have alternative stable states that coexist under certain environmental conditions: a vegetated, stabilized state and bare active state. This behavior implies the possibility of abrupt transitions from one to another in response gradual change. Here, we synthesize stratigraphic records covering 12,000 years dynamics this system at 144 localities across three dune fields northern China. We find side-by-side coexistence states, occasional sharp shifts time between those...
Abstract Doping Mn 2+ in newly emerged lead‐free metal halides to access versatile optoelectronic applications is highly desired. However, understanding the chemical pathway of doping and precisely controlling it remains challenging. Here, crucial role initial surface adsorption kinetics demonstrated, step effectively optimized by a moderate Lewis base ligand. The results show that not only concentration Cs 3 Cu 2 I 5 modulated flexibly but also produced :Mn microcrystals exhibit tuned...
ABSTRACT This paper draws on recent optically stimulated luminescence (OSL) dating to evaluate the long‐held assumption that dust accumulation rates in Loess Plateau and extent of active aeolian sand dunefields north have varied together over time, because both are controlled by strength Asian monsoons also possibly proximal loess sources. The results show there is little evidence high coincided with well‐dated episodes extensive dune activity Mu Us, Otindag, Horqin dunefields, at 11–8 ka...
Abstract Palaeoflood slackwater deposits (SWDs), are the natural record of overbank flooding and often found within aeolian loess‐soil profiles along river valleys middle Yellow River basin. These pedo‐stratigraphic sequences studied using a multi‐disciplinarily approach to reconstruct Holocene hydro‐climatic variations. Our field investigations lower Jinghe valley have identified palaeoflood SWDs at several sites riverbanks based on sedimentological criteria. Analytical results, including...
Sedimentary records of the Holocene extraordinary floods were investigated in upper reaches Weihe River, a major tributary middle Yellow River basin. Palaeoflood slackwater deposits (SWD) identified at several sites on riverbanks. These clayey silt beds are inserted into aeolian loess-soil profiles and slope clastic deposits. They have recorded palaeoflood events which occurred between 3200 3000 yr BP as dated by OSL method checked archaeological remains Neolithic Bronze Age retrieved from...
In vitro diagnostic (IVD) manufacturers were important suppliers of external servicesto medical laboratories. There equipment, reagents, calibration and maintenauce services played an role in ensuring the quality laboratory tests.It is also helpful for IVD to establish maintain a good reputation credibility.ISO 15189: 2012Medical laboratories - Requirements competencewas issued onNovember 1, 2012, which replaced second edition (ISO 2007). related are involved new standard. The article aimed...
Abstract The sand–loess transition zone in north China is sensitive to climate change, and an ideal place investigate past environmental changes. However, change at millennial–centennial timescales this region has not been well reconstructed because of limited numerical dating. Alternations sandy loam soils with aeolian sand layers the Mu Us Otindag fields, which lie along zone, indicate multiple intervals dune activity stability. This probably a response variations East Asian monsoon during...
Vegetation changes during the late Quaternary in dune fields of northern China are not well understood. We investigated organic carbon stable isotopic composition surface soils, related mainly to ratio C 3 and 4 plants, across a range arid subhumid climates this region. Isotopic is weakly both temperature moisture (multiple R 2 = 0.53), with highest δ 13 (greatest abundance) warm, Horqin field. In Quaternary, eolian stratigraphic sections Mu Us fields, but much colder Otindag field, higher...
Palaeohydrological investigations were carried out in the middle B eiluohe R iver valley Y ellow basin. Palaeoflood slackwater deposits ( SWD s) are natural records of overbank flooding and often identified Holocene aeolian loess–soil profiles along river valley. Three bedsets palaeoflood s found within mid‐ H olocene C limatic O ptimum palaeosol S 0 ) on right riverbank. Both sedimentary analytical results, including magnetic susceptibility, grain‐size distribution concentrations chemical...