A5083163801- Plant Water Relations and Carbon Dynamics
- Cryospheric studies and observations
- Hydrology and Watershed Management Studies
- Climate change and permafrost
- Climate variability and models
- Environmental and Agricultural Sciences
- Soil and Unsaturated Flow
- Soil Carbon and Nitrogen Dynamics
- Forest, Soil, and Plant Ecology in China
- Atmospheric and Environmental Gas Dynamics
- Arctic and Antarctic ice dynamics
- Ecology and Vegetation Dynamics Studies
- Landslides and related hazards
- Methane Hydrates and Related Phenomena
- Tree-ring climate responses
- Soil erosion and sediment transport
- Groundwater and Isotope Geochemistry
- Geology and Paleoclimatology Research
- Efficiency Analysis Using DEA
- Meteorological Phenomena and Simulations
- Evaluation and Optimization Models
- Remote Sensing and LiDAR Applications
- Peatlands and Wetlands Ecology
- Glaucoma and retinal disorders
- Plant Ecology and Soil Science
State Key Laboratory of Hydraulics and Mountain River Engineering
2020-2025
Sichuan University
2020-2025
Beijing Forestry University
2024-2025
Shandong Agricultural University
2024
Abbott (Spain)
2023
University of Oklahoma Health Sciences Center
2023
Duke University
2023
Nanjing Medical University
2023
University of Chinese Academy of Sciences
2010-2022
Shanghai University
2010-2021
The streamflow age is an essential descriptor of catchment functioning that controls runoff generation, biogeochemical cycling, and contaminant transport. young water fraction (Fyw) streamflow, which can be accurately estimated with tracer data, effective at characterizing the proportions heterogeneous catchments. However, Fyw values permafrost catchments are not known. We selected a watershed in region Qinghai-Tibet Plateau (QTP) as our study area. Daily interval stable isotopes (deuterium...
Abstract Nodulating leguminous and actinorhizal N 2 ‐fixation pioneer plants are well‐known drivers of primary succession as they may facilitate soil development the growth neighbouring non‐nodulating plant species a result their ‐fixing capacity. However, recent studies have shown that some also obtain through endophytic diazotrophs, although capacity is relatively low when compared with traditionally nodulating species. There remains limited understanding how these two categories...
Abstract Evapotranspiration ( ET ) is a crucial component of the hydrological cycle in terrestrial ecosystems, but estimating mountainous regions challenging. In this study, performance generalized nonlinear formulation complementary principle while daily was evaluated, and spatial‐temporal variation analyzed across four vegetation types along an elevation gradient on Mount Gongga, Southwest China. The values calibrated Priestley Taylor coefficients for each sites ranged from 0.98 to 1.13....
Climate-sensitive northern cryosphere inland waters emit greenhouse gases (GHGs) into the atmosphere, yet their total emissions remain poorly constrained. We present a data-driven synthesis of GHG from considering water body types, zones, and seasonality. find that annual are dominated by carbon dioxide ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"> <mml:mrow> <mml:msubsup> <mml:mn>1149.2</mml:mn> <mml:mn>1004.8</mml:mn> <mml:mn>1307.5</mml:mn>...
Abies fabri (Mast.) Craib. (A. fabri) is an endemic and dominant species in typical subalpine dark coniferous forests distributed mountainous regions of Western Sichuan, China. We investigated the ecophysiological responses A. seedlings to short-term experimental drought, nitrogen supply their interaction. Drought stress was created by excluding natural precipitation with automatically controlled plastic roof that covered seedlings. Nitrogen fertilization applied weekly spraying over...
Abstract Permafrost thawing over the Tibetan Plateau (TP) is a consequence of climatic warming, which will change local hydrological processes remarkably. Evapotranspiration (ET) an important process indicator that needs to be well quantified. Several methods have been applied estimate ET. However, energy consumed by was neglected in ET estimation on TP. Here simple but effective method introduced represent consumption due ice phase changes generalized nonlinear complementary principle. Our...
Leaf mass per area (Ma), nitrogen content unit leaf (Narea), maximum carboxylation capacity (Vcmax) and the ratio of leaf-internal to ambient CO2 partial pressure (χ) are important traits related photosynthetic function, they show systematic variation along climatic elevational gradients. Separating effects air climate gradients is challenging due covariation elevation, climate. However, recently developed models based on optimality theory offer an independent way predict thus separate...
Introduction Efficiently and precisely identifying tomatoes amidst intricate surroundings is essential for advancing the automation of tomato harvesting. Current object detection algorithms are slow have low recognition accuracy occluded small tomatoes. Methods To enhance in complex environments, a lightweight greenhouse model named S-YOLO proposed, based on YOLOv8s with several key improvements: (1) A GSConv_SlimNeck structure tailored was innovatively constructed, significantly reducing...
Under the context of dramatic human disturbances on river system, processes that control transport water, sediment, and carbon from basins to coastal seas are not completely understood. Here we performed a quantitative synthesis for 121 sites across China find factors annual exports (Rc: runoff coefficient; TSSC: total suspended sediment concentration; TSSL: loads; TOCL: organic loads) at different spatial scales. The results indicated activities such as dam construction vegetation...
Abstract Energy partitioning and evapotranspiration (ET) of alpine meadows in permafrost areas are crucial for water cycle on the Qinghai-Tibet Plateau. However, seasonal (freeze–thaw cycle) variations energy ET their driving factors must be clarified. Therefore, 4-year fluxes [i.e. latent heat (LE) sensible (H)] were observed, bulk parameters surface conductance, decoupling coefficient (Ω), Priestley–Taylor (α)] estimated an meadow Mean daily LE (27.45 ± 23.89 W/m2) H (32.51 16.72 accounted...
Abstract Riverine dissolved inorganic carbon (DIC) exports play a central role in the regional and global cycles. Here, we investigated spatiotemporal variability sources of DIC eight catchments Yangtze River source region (YRSR) with variable permafrost coverage seasonally thawed active layers. The YRSR are DIC‐rich (averagely 25 mg C L −1 ) export 3.51 g m −2 yr DIC. seasonal changes temperature, layer, flow path, discharge can alter stable isotope ( δ 13 C‐DIC). most depleted C‐DIC values...
Abstract Water use efficiency (WUE) provides vital information about the carbon‐water coupling relationship of a terrestrial ecosystem. Understanding spatiotemporal variability and driving factors Tibetan Plateau (TP) WUE can facilitate prediction response process in TP to climate change. We used land surface model investigate changes responses environmental factors, such as atmospheric CO 2 concentration Our results suggest that average annual was 0.38 g C kg −1 H O this variable tended...
Abstract In this study, the spatiotemporal changes and driving factors of evapotranspiration (ET) over Tibetan Plateau (TP) are assessed from 1961 to 2014, based on a revised generalized nonlinear complementary (nonlinear-CR) model. The average annual ET TP was 328 mm. highest value (711 mm) found in forest region southeastern part TP, lowest (151 desert northwestern TP. terms contribution different subregions total amount for whole plateau, meadow steppe regions contributed most accounting...
Abstract Soil particle-size distribution (PSD) is one of the most important physical attributes due to its great influence on soil properties related management and degradation. Thus, characterizing variations in PSDs are a major issue environmental research. To date, fractal model could well characterize PSD. Furthermore, scientific understanding evaluation forest quality basis for guiding ecological restoration improvement degraded stands select suitable tree species afforestation...
The Qinghai-Tibet Plateau (QTP) is experiencing severe permafrost degradation, which can affect the hydrological and biogeochemical processes. Yet how change affects riverine carbon export remains uncertain. Here, we investigated seasonal variations of dissolved inorganic organic (DIC DOC) during flow seasons in a watershed located central QTP region. results showed that DIC concentrations (27.81 ± 9.75 mg L-1) were much higher than DOC (6.57 2.24 L-1). fluxes 3.95 0.94 g C m-2 year-1,...
Abstract Diverse meteorological and vegetation conditions at different elevations years lead to varied contributions of evapotranspiration (ET) water yield in montane areas. However, how physical biological factors affect interannual elevational ET fluctuations energy‐limited ecosystems remains unclear. Therefore, we quantified the spatial‐temporal patterns separated controls on using 5‐year (2015–2019) eddy‐covariance data perturbation analysis Mount Gongga, Southwest China. Coefficients...
Alpine grasslands are the dominant vegetation of Tibetan Plateau (TP) and essential to understanding mechanism change in water use efficiency (WUE) high-cold ecosystems a changing environment. However, it is still unclear how WUE different alpine respond changes precipitation. Therefore, we investigated variations growing season its drivers among grassland types, including meadow permafrost (PAM), seasonal frost (SAM), steppe (PAS), (SAS), precipitation years. The mean was significantly...
Abstract Streams and rivers are globally significant sources of greenhouse gases (GHGs) to the atmosphere. However, GHG evasion from mountain streams remains poorly constrained due scarce data. In this study, we measured concentrations estimated fluxes riverine carbon dioxide (CO 2 ), methane (CH 4 nitrous oxide (N O) across three alpine catchments in Southwest China. these turbulent slightly oversaturated but much lower than global average, likely high gas transfer velocities that rapidly...