A5100747230- Atmospheric and Environmental Gas Dynamics
- Plant Diversity and Evolution
- Fern and Epiphyte Biology
- Plant and Fungal Species Descriptions
- Botany and Geology in Latin America and Caribbean
- Land Use and Ecosystem Services
- Paleontology and Stratigraphy of Fossils
- Atmospheric chemistry and aerosols
- Geographic Information Systems Studies
- Medical Imaging and Pathology Studies
- Environmental Changes in China
- Air Quality and Health Impacts
- Remote Sensing in Agriculture
- Climate Change and Geoengineering
- Climate variability and models
- Innovation and Socioeconomic Development
- Greenhouse Technology and Climate Control
- Analog and Mixed-Signal Circuit Design
- Quantum Computing Algorithms and Architecture
- Peatlands and Wetlands Ecology
- Innovation Diffusion and Forecasting
- Geology and Paleoclimatology Research
- Atmospheric aerosols and clouds
- Consumer Market Behavior and Pricing
- Climate Change Policy and Economics
Henan University
2019-2023
State Key Laboratory of Remote Sensing Science
2019
Beijing Normal University
2018-2019
Fairy Lake Botanical Garden
2006-2015
North China University of Science and Technology
2012
Sun Yat-sen University
2010
Institute of Botany
2010
Chinese Academy of Sciences
2010
Summary Cycads are the most ancient lineage of living seed plants, but design their leaves has received little study. We tested whether cycad governed by same fundamental principles previously established for ferns, conifers and angiosperms, characterized uniqueness this relict in foliar trait relationships. Leaf structure, photosynthesis, hydraulics nutrient composition were studied 33 species from nine genera three families growing two botanical gardens. varied greatly leaf structure...
A superconducting quantum interference device (SQUID), functioning as a nonlinear response device, typically requires the incorporation of flux-locked loop (FLL) circuit to facilitate linear amplification current signal transmitted through transition-edge sensor (TES) across large dynamic range. This work presents reasonable model SQUID-FLL readout system, based on digital proportional-integral-differential (PID) flux negative feedback algorithm. investigates effect $V$-$\phi$ shape...
Abstract: A new species of gymnospermous fossil wood, Protophyllocladoxylon jingyuanense sp. nov., is described from the lower part Tsingyuan Formation (Serpukhovian/Late Mississippian), near coal mine Ciyao, Gansu, northwestern China. The specimen preserved only in silicified secondary xylem, while growth rings are absent Pits radial tracheidal walls araucaroid type, uniseriate, occasionally biseriate. Xylem rays homogeneous, Cross‐field pits simple, large, one to two number. Axial...
A marattialean trunk of Psaronius laowujiensis sp. nov. is described from the Upper Permian Xuanwei Formation, Panxian County, Guizhou Province, South China. The specimen most likely represents lower part trunk, because preserved thickness root mantel somewhat larger than diameter stem. Meristeles stem are arranged in approximately five tangential stelar cycles but not radial files. Inner meristeles small number, ∼12–13, and loosely arranged. Leaf traces diverge helically organized a 2/5...
Abstract Sulfate geoengineering could mitigate global warming via injecting SO 2 into the stratosphere. However, its impacts on regional climate might lead to adverse consequences for local agriculture. In this study, we simulated of sulfate rice yield in China both with sufficient irrigation (irrigated) and without (rainfed). We used Geoengineering Model Intercomparison Project G4 climates from six models force ORYZA version 3 crop model simulate yields under scenario. prescribes a...
Abstract As the world's largest developing country, quantifying China's CO 2 contribution to global warming is important for assessing climate effects of anthropogenic and natural factors. We used assimilation data from 2000 2015 a carbon–climate parameterized scheme analyze carbon emissions their climatic while considering terrestrial ecosystem sink. Three results are notable: (1) From 2015, increased 2.48 3.45 mol m −2 , net emission (sum emissions) rose 1.24 2.51 ; was 34.78% 39.65%. (2)...
The greenhouse gases sequestrated by ecosystems are of great relevance to global carbon cycle and climate regulation. However, it is time-consuming laborious conduct sampling analysis, also difficult analyze the variation potential sequestration various for in China. This study used six 5-year periods land use data China between 1990 2015 changes three natural (forest, grassland, wetland). Correspondingly, major (carbon dioxide CO2, methane, nitrous oxide) during 25 years were simulated...
Land cover change (LCC) and its impact on CO2 sequestration radiative forcing (RF) could dramatically affect climate change, but there has been little effort to address this issue in South Southeast Asia over a long period of time using actual land information. In study, annual data from 1992 2015 were used assess the flux corresponding RF due LCC Asia. The results showed that 553.2 × 103 km2 region experienced during period, mostly reclamation, urban expansion, deforestation. These caused...
Both cropland and climate change over time, but the potential effects of on is currently not well understood. Here, we combined temporally spatially explicit dynamics with air temperature, precipitation, solar radiation datasets. China’s showed a clear northward-shifting trend from 1990 to 2015. The decreased south break line at 38° N, whereas it increased northern regions. Correspondingly, temperature significant warming in early part study period, which slowed down later years. During...
Quantifying the greenhouse gas (GHG) storage in forest ecosystems can support global change directly, from a biogeochemical perspective. However, accurately assessing amount of GHG still faces challenges China because their wide distribution, varying types, and changing definitions areas forests. We used land-use data with 5-year intervals during 1990–2015 to investigate spatiotemporal variations China. As three major gases ecosystems, potential carbon dioxide, methane, nitrous oxide be...
Analysis the change rules and distribution of microclimate that in greenhouse such as temperature, humidity earth temperature under different weather types winter spring, using observed data cucumber which seated Shandong provincial Shouguang from 2007 to 2010. Using statistical method choose factors for forecast simulate models next day's forecast, according months, time a day. The simulation results are good except April. Exam with February May 2010, good, can be used forecast.
Price is an important index of consumers' purchase choice, and the price comparison behavior consumers in decision-making process also affects profit loss their own utility to varying degrees. Based on multinomial logit(MNL) model, reference incorporated into product line development design, pricing decision value-added services bundle studied. The influence mechanism effect optimal maximum analyzed, deviation strategic caused by not considering discussed. results show that has a positive...