A5076981388- Geology and Paleoclimatology Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Tree-ring climate responses
- Marine and coastal ecosystems
- Archaeology and ancient environmental studies
- Pleistocene-Era Hominins and Archaeology
- Climate variability and models
- Coastal wetland ecosystem dynamics
- Geological formations and processes
- Isotope Analysis in Ecology
- Geochemistry and Elemental Analysis
- Water Quality and Pollution Assessment
- Pacific and Southeast Asian Studies
- Geological and Geochemical Analysis
- Paleontology and Stratigraphy of Fossils
- Aeolian processes and effects
- Groundwater and Isotope Geochemistry
- Mercury impact and mitigation studies
- Microbial Community Ecology and Physiology
- Radioactive contamination and transfer
- Climate change and permafrost
- Cryospheric studies and observations
- Freshwater macroinvertebrate diversity and ecology
- Heavy metals in environment
- Optical Systems and Laser Technology
Tianjin University
2010-2024
Chinese Academy of Sciences
2013-2024
Beijing Forestry University
2024
Anhui Normal University
2024
Guizhou University
2008-2023
Tongren University
2022-2023
China University of Geosciences (Beijing)
2022
Institute of Earth Environment
2011-2022
Nanjing Institute of Geography and Limnology
2014-2022
Xi'an Jiaotong University
1990-2017
Two atmospheric circulation systems, the mid-latitude Westerlies and Asian summer monsoon (ASM), play key roles in northern-hemisphere climatic changes. However, variability of Asia their relationship to ASM remain unclear. Here, we present longest highest-resolution drill core from Lake Qinghai on northeastern Tibetan Plateau (TP), which uniquely records both since 32 ka, reflecting interplay these two systems. These document anti-phase for glacial-interglacial glacial millennial...
Indian summer monsoon changes during the Pleistocene were influenced by dynamic effects originating in both hemispheres.
The magnitude, rate, and extent of past future East Asian monsoon (EAM) rainfall fluctuations remain unresolved. Here, late Pleistocene-Holocene EAM intensity is reconstructed using a well-dated northeastern China closed-basin lake area record located at the modern northwestern fringe EAM. northern alternated rapidly between wet dry periods on time scales centuries. Lake levels were 60 m higher than present during early middle Holocene, requiring twofold increase in annual rainfall, which,...
The mid-Holocene hydroclimates and the forcing mechanisms over arid Central Asia (ACA) are hotly debated in context of global climate change. It is widely assumed that ACA Holocene precipitation broadly followed and/or was out-of-phase with Northern Hemisphere solar insolation. However, here we show a antiphase relationship between boreal insolation hydroclimatic trend revealed from well-dated peat core (at Big Black peatland; BBP) northwestern China, southern Altai Mountains. Multiple...
Abstract Changes in the intensity of East Asian summer monsoon (EASM) are critical for regulating regional hydrology, ecology, and human civilization, especially vicinity limit (SML). However, detailed spatial variations SML mainland China over past 2000 years uncertain due to lack high-resolution paleoclimate archives. As a result, accurate location during transition from Medieval Warm Period (MWP) Little Ice Age (LIA), as well its impacts on ecology society, poorly understood. Here, we...
Arid Central Asia (ACA), with its diverse landscapes of high mountains, oases, and deserts, hosted the central routes Silk Roads that linked trade centers from East to eastern Mediterranean. Ecological pockets ecoclines in ACA are largely determined by local precipitation. However, little research has gone into effects hydroclimatic changes on trans-Eurasian cultural exchange. Here, we reconstruct precipitation ACA, covering mid-late Holocene a U-Th dated, ~3 resolution, multi-proxy time...
The Rb/Sr ratios of lake sediments have been suggested as indicators weathering intensity by increasing work. However, the geochemistry is variable between different lakes. In this study, we investigated spatial and temporal patterns ratios, well those other major elements in surface Lake Qinghai. We find that pattern bulk correlates with mass accumulation rate, terrigenous fractions, e.g., SiO2, Ti, Fe. variations also synchronize Fe each individual core. These suggest are closely related...
Abstract The impact of water quality changes in River Changjiang (formally known as the Yangtze River) on dissolved CO 2 and silicate concentrations seasonal carbon flux past several decades (1960s–2000) was evaluated, based monitoring data from hydrographic gauge. It found that decreased dramatically during this decades, opposed to a marked increase nutrient ( e.g . NO 3 - ) concentrations. Our analyses revealed over-saturated with atmosphere , its concentration had showed declining trend...
In this study we report changes in Indian summer monsoon (ISM) intensity during the past ~ 3500 yr inferred from proxy indices at Lake Erhai, southwestern China. Both pollen concentrations and other indices, including sediment grain size, total organic carbon contents (TOC), elemental (e.g., Fe, Al), clearly indicate a long term decreasing trend ISM over late Holocene. During period approximately AD 750 to 1200, of conifer broadleaf trees, herbs reached lowest levels yr; while percentages...
Abstract Knowledge of spatial and temporal hydroclimatic differences is critical in understanding climatic mechanisms. Here we show striking contrasts between northern southern parts the eastern margin Tibetan Plateau (ETP), those East Asian summer monsoon (EASM) Indian (ISM) areas during past ~2,000 years. During Medieval Period, last 100 to 200 years, ETP (S-ETP) area was generally dry (on average), while (N-ETP) wet. Little Ice Age (LIA), hydroclimate over S-ETP wet, that N-ETP average)....
Central Asia (CA) is one of the world’s most significant arid regions, which markedly impacted by global warming. A better understanding dynamical processes governing its Holocene climate variability critical for a possible future impacts change in region. To date, existing CA paleoclimate records are from summer precipitation–dominated eastern (ECA), with few winter western (WCA). Here, we present precisely dated (~6‰) and highly resolved (<4-y) record hydroclimatic variations WCA...
In this paper, we study the Markovian Pandora's Box Problem, where decisions are governed by both order constraints and Markovianly correlated rewards, structured within a shared directed acyclic graph. To best of our knowledge, previous work has not incorporated dependencies in setting. This framework is particularly relevant to applications such as data or computation driven algorithm design, exploration future models incurs cost. We present optimal fully adaptive strategies associated...