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Effects of Urban Forest Types and Traits on Soil Organic Carbon Stock in Beijing
forest types forest traits partial least squares regression soil organic carbon urban forest
2023/12/21
Forests can affect soil organic carbon (SOC) quality and distribution through forest types and traits. However, much less is known about the influence of urban forests on SOC, especially in the effect...
THE LAND-USE AND LAND-COVER CHANGE ANALYSIS IN BEIJING HUAIROU IN LAST TEN YEARS
Land-use and Land-cover Change Analysis Remote sensing technology Beijing Huairou ECognition
2018/5/16
With eCognition software, the sample-based object-oriented classification method is used. Remote sensing images in Huairou district of Beijing had been classified using remote sensing images of last t...
MONITORING FARMLAND LOSS CAUSED BY URBANIZATION IN BEIJING FROM MODIS TIME SERIES USING HIERARCHICAL HIDDEN MARKOV MODEL
Urban Encroachment onto Farmland Time Series Change Detection Hierarchical Hidden Markov Model (HHMM)
2018/5/16
In this study, we proposed a method to map urban encroachment onto farmland using satellite image time series (SITS) based on the hierarchical hidden Markov model (HHMM). In this method, the farmland ...
RESEARCH ON THE CRUSTAL DEFORMATION CHARACTERISTICS IN BEIJING USING INSAR AND GNSS TECHNOLOGY
Beijing INSAR GNSS Crustal Deformation Geological structure
2018/5/14
In this paper, we tried to reveal the characteristics of the crustal deformation in both the horizontal and vertical directions in Beijing using InSAR and GNSS observations. Regarding the serious land...
THE MONITORING AND SPATIAL-TEMPORAL EVOLUTION CHARACTERISTIC ANALYSIS FOR LAND SUBSIDENCE IN BEIJING
Land Subsidence D-InSAR Small Baseline Subset (SBAS) Characteristic Analysis Plain area
2018/5/17
At present the land subsidence has been the main geological disaster in the plain area of China, and became one of the most serious disaster that restrict the social and economic sustainable developme...
THE VEGETATION TRENDS AND DRIVERS IN BEIJING-TIANJING-HEIBEI REGION FROM 1982 TO 2013 BASED ON TIME SERIES GIMMS NDVI3g
GIMMS NDVI3g Monitoring the changes of vegetation Climate Change Beijing-Tianjin-Hebei Region
2018/5/15
Vegetation plays a leading role in ecosystems. Plant communities are the main components of ecosystems. Green plants in ecosystems are the primary producers, and they provide the living organic matter...
Examining the distribution and dynamics of impervious surface in different function zones in Beijing
impervious surface landscape metrics classification and regression tree (CART) function zones Lorenz curve contribution index
2018/4/9
Impervious surface (IS) is often recognized as the indicator of urban environmental changes. Numerous research efforts have been devoted to studying its spatio-temporal dynamics and ecological effects...
Rainfall-runoff risk characteristics of urban function zones in Beijing using the SCS-CN model
SCS-CN model urban function zone spatial cluster runoff risk
2018/4/9
Urbanization significantly increases the risk of urban flooding. Therefore, quantitative study of urban rainfall-runoff processes can provide a scientific basis for urban planning and management. In t...
Analysis on temporal and spatial variations of groundwater hydrochemical characteristics in the past decade in southern plain of Beijing, China
Beijing Groundwater Hydrochemical characteristics
2018/3/23
Groundwater utilization and protection are crucial for sustainable urban development. This is especially true for Beijing, where groundwater is an important source for urban water supply. In this stud...
HIGH RESOLUTION AEROSOL OPTICAL DEPTH MAPPING OF BEIJING USING LANSAT8 IMAGERY
AOD Retrieval Landsat8 Dark target Impervious surface
2016/12/1
Aerosol Optical Depth (AOD) is one of the most important parameters in the atmospheric correction of remote sensing images. We present a new method of per pixel AOD retrieval using the imagery of Land...
COMPREHENSIVE EVALUATION OF URBAN SPRAWL ON ECOLOGICAL ENVIRONMENT USING MULTI-SOURCE DATA:A CASE STUDY OF BEIJING
Urban sprawl Ecological environment Beijing Multi-source data Multiscale
2016/12/1
With urban population growing and urban sprawling, urban ecological environment problems appear. Study on spatiotemporal characteristics of urban sprawl and its impact on ecological environment is use...
ESTIMATING PM2.5 IN THE BEIJING-TIANJIN-HEBEI REGION USING MODIS AOD PRODUCTS FROM 2014 TO 2015
Air Pollution PM2.5 MODIS Aerosol Optical Depth
2016/7/8
Fine particulate matter with a diameter less than 2.5 μm (PM2.5) has harmful impacts on regional climate, economic development and public health. The high PM2.5 concentrations in China’s urban areas a...
Vitamin D deficiency and associated factors in adolescent girls in Beijing
calcium intake vitamin D intake sunlight exposure
2016/6/14
Several locally published reports indicate a high
prevalence of vitamin D deficiency among adolescents in China,
but no systematic population-based survey has been conducted.
LAND COVER CLASSIFICATION IN BEIJING AREA BASED ON CBERS-02B CCD DATA
CBERS-02B CCD Land Cover Classification DTC Accuracy Assessment
2016/3/17
In this paper, we studied the potential of land cover classification using multi-spectral CBERS-02B CCD data. CEBERS-02B is the third of the series earth resource satellite of China. It was launched o...
Assessing Beijing's PM2:5 Pollution: Severity, Weather Impact, APEC and Winter Heating
Air Quality Meteorological Condition Observational Study Quasi-Experiment
2016/1/26
By learning the PM 2.5 readings and meteorological records in 2010-2015, the severity of PM 2.5 pollution in Beijing is quantified with a set of statistical measures. As PM 2.5 concentration is highly...