Showing 1 - 20 results of 947 for search 'Guangdong model', query time: 0.08s Refine Results
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    Spatial-temporal characteristics and influencing factors of farmland carbon emissions in Guangdong Province, China by Zihao Chao, Zihao Chao, Zihao Chao, Ziyang Zhu, Ziyang Zhu, Ziyang Zhu, Yuchen Li

    Published 2025-01-01
    “…Chemical fertilizers were the largest contributor to farmland carbon emissions, accounting for approximately 61.78% of the total. 2) The spatial distribution of farmland carbon emissions followed the pattern of “Western Guangdong > Northern Guangdong > Eastern Guangdong > Pearl River Delta”. …”
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    Public Housing Allocation Model in the Guangdong-Hong Kong-Macao Greater Bay Area under Clustering Algorithm by Lei Zhang, Xueqing Hu

    Published 2021-01-01
    “…The housing model in the Bay Area is analyzed firstly, and the key points of public rental housing and allocation management models are discussed comprehensively. …”
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    Temporal shifts in dengue epidemic in Guangdong Province before and during the COVID-19 pandemic: a Bayesian model study from 2012 to 2022. by Jiaqing Xu, Xiaohua Tan, Yi Quan, Dexin Gong, Hui Deng, Jianguo Zhao, Xing Huang, Yingtao Zhang, Zhoupeng Ren, Zuhua Rong, Weilin Zeng, Xing Li, Wenyuan Zheng, Shu Xiao, Jianpeng Xiao, Meng Zhang

    Published 2025-02-01
    “…According to BSTS model estimates, 6557 local dengue cases may have been reduced in Guangdong Province from 2020 to 2022, with a relative reduction of 99.91% (95%CI: 98.85-99.99%).…”
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    Maximum carbon uptake potential through progressive management of plantation forests in Guangdong Province, China by Xueyan Li, Chongyuan Bi, Jianping Wu, Chaoqun Zhang, Wenting Yan, Zhenzhen Xiao, Ying-Ping Wang, Jiashun Ren, Yongxian Su

    Published 2025-01-01
    “…Abstract Forest cover in Guangdong Province, southern China, has doubled over the last four decades. …”
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    Analysis of Water Surface Ratio Evolution in Guangdong-Hong Kong-Macao Greater Bay Area Based on Landsat by JIANG Xintong, LIAO Xiaolong, QUAN Xujian, XUE Jiao, ZHONG Yixuan, YU Baishun

    Published 2022-01-01
    “…An appropriate urban water surface ratio plays a vital role in improving the ecological quality of urban areas and the quality of urban living space.By RS and GIS technology,the research takes the free and open source optical remote sensing data,Landsat images,as the data source and uses the normalized difference water index (NDWI) and the normalized difference vegetation index (NDVI) to construct an automatic water body discrimination model.In this way,we can analyze the evolution of the water surface ratio in the core cities of the Guangdong-Hong Kong-Macao Greater Bay Area (Greater Bay Area) in the past two decades.The result analysis reveals that in the past 20 years,the water area of the Greater Bay Area has been decreased by 136 km<sup>2</sup>,and the water surface ratio is reduced from 4.48% to 4.22%.Among the cities in the Greater Bay Area,the city with the largest reduction in the water area is Jiangmen,with a decline of 44.20 km<sup>2</sup>,and its water surface ratio falls from 6.10% to 5.62%.Foshan follows Jiangmen,with a water area decrease of 32.34 km<sup>2</sup>,and its water surface ratio drops from 13.17% to 12.32%.The water area in Macao,Hong Kong,Huizhou,and Zhaoqing demonstrates a fall of not more than 10 km<sup>2</sup>,and that in Guangzhou and Shenzhen is reduced by not more than 20 km<sup>2</sup>.By the transition matrix analysis of land use types in the Greater Bay Area,we can uncover the main reason for the decline in water area—that is,the increase in construction land invading the original water area.The result of this paper can provide theoretical and methodological support for the rational use of water resources and the construction of water ecology in the cities of the Greater Bay Area.Meanwhile,it can offer an important reference for promoting the construction of ecological civilization and strengthening environmental protection in the Greater Bay Area.…”
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    Study on Sugarcane Production Efficiency Based on DEA-Malmquist Index: A Case Study of 8 Cities in Guangdong Province by Xiaohui Wang, Xin Zhang

    Published 2021-01-01
    “…This article takes the evaluation model of data envelopment analysis (DEA) and Malmquist index change and its decomposition method, from 2014 to 2018, of sugarcane production in 8 cities in Guangdong province as the research object and the selection of sugarcane production output and production factors as a model output variable and input variable, respectively, according to the eight cities of Guangdong province in 2014–2018 statistics and analyzes the sugarcane production efficiency of 8 cities in Guangdong province. …”
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    Rice Identification and Spatio-Temporal Changes Based on Sentinel-1 Time Series in Leizhou City, Guangdong Province, China by Kaiwen Zhong, Jian Zuo, Jianhui Xu

    Published 2024-12-01
    “…Spatio-temporal changes in rice distribution in Leizhou City, Guangdong Province, China, from 2017 to 2021 were analyzed. …”
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    Environmental benefits assessment of pollution reduction and Greenhouse gas emissions from urban domestic wastewater treatment in Guangdong province by Wang Simiao, Chen Deye, Wang Zixiong, Fan Yuxin, Yan Chao, Wang Tianxiang

    Published 2025-01-01
    “…Based on the IPCC inventory method and the full life cycle method, this paper constructs a carbon-pollution accounting model for urban domestic sewage treatment and comprehensively evaluates the pollution reduction benefits and greenhouse gas emissions of urban domestic sewage treatment in Guangdong Province. …”
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    Analysis of the Water Resources Sustainable Utilization in Guangdong Province and Nine Cities in the Pearl River Delta Based on Ecological Footprint Theory by ZHANG Yimin, ZHANG Xiaolin, CHEN Chang

    Published 2022-01-01
    “…This paper focuses on the coordinated development between water resources utilization and the economy in Guangdong Province.Utilizing the water ecological footprint model,it calculates the per capita water ecological footprint,ecological carrying capacity,and ecological surplus (deficit) of Guangdong Province and nine cities in the Pearl River Delta in the past 10 years in terms of production,life,and ecological water use.The results show that from 2011 to 2020,the water ecological footprint per capita in these areas has shown a downward trend,and water utilization efficiency has increased year by year.In the past 10 years,the per capita water resources carrying capacity is greater than the ecological footprint,and water resources are in a sustainable state.However,the ecological surplus has shown a slow downward trend.As the production water accounts for a large proportion of total water use,a considerable improvement in agricultural water saving can be achieved in the province.In the process of economic development,it is still necessary to strengthen the management of water resources to further improve the water use efficiency and promote the sustainable use of water resources in the province.…”
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    Comparison and Impact Factor Analysis of Ground PM2.5 Retrieved by Aqua and Himawari-8 Satellite Products in Guangdong, China by Tingyuan Li, Xuejiao Deng, Jingyang Chen, Jie Xu, Jin Shen

    Published 2023-01-01
    “…Previous studies on PM2.5 concentrations in Guangdong have used the aerosol optical depth (AOD) determined by MODIS sensors on the Terra and Aqua satellites, which both have a transit time of once per day. …”
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    Impact of Economic Agglomeration on Carbon Emission Intensity and Its Spatial Spillover Effect: A Case Study of Guangdong Province, China by Qian Xu, Junyi Li, Ziqing Lin, Shuhuang Wu, Ying Yang, Zhixin Lu, Yingjie Xu, Lisi Zha

    Published 2025-01-01
    “…We analyzed the impact of economic agglomeration on carbon emission intensity and its spatial spillover effect in Guangdong Province, the most economically advantaged province of China, based on a spatial weight matrix generated using geographic proximity, exploratory spatial data analysis (ESDA), and the spatial Durbin model. …”
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    Regression Analysis of Initial Geostress Field for Deep-Buried Tunnel of Water Resources Allocation Project in Guangdong Province around the Beibu Gulf by DAI Zhikun, ZHENG Xiao, YOU Siqin

    Published 2023-01-01
    “…Geostress has important influence on the surrounding rock of the deep-buried tunnel during its construction.Accurately identifying the initial geostress of the engineering area can effectively guide the design and construction of the tunnel.In order to study the distribution of initial geostress in the deeply buried tunnel area of water resources allocation project in Guangdong Province around the Beibu Gulf,a three-dimensional geological model was established via the finite difference software FLAC<sup>3D</sup>,by reference to the geoengineering conditions and measured data on geostress,with the relevant analysis and calculation conducted under the separate effects of each factor concerning the initial geostress field.And the a multiple regression model between measured and calculated values was established to work out the optimal regression coefficient through multiple regression analysis,thus obtaining the regression equation of geostress.By comparing the regression values and the measured values,it is found that the magnitude and direction of the two values are close to each other,indicating that the initial geostress field established by regression analysis is reasonable and can provide effective basic data for subsequent evaluation of the stability of surrounding rock of the tunnel,support design and long-term safety evaluation and prediction.…”
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    Evaluation on Economic Benefits of Adoption of High-quality Rice Cultivars - A Study Based on Survey Data from Rice Farmers in Guangdong Province by Shuting YANG, Zedong YAN, Fengbo CHEN

    Published 2024-10-01
    “…【Method】Based on the survey data from rice farmers in Guangdong Province during 2021- 2022, the endogenous switching regression model was used to evaluate the planting benefits associated with high-quality and ordinary-quality rice. …”
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    Long-term exposure to PM2.5 and its constituents and visual impairment in schoolchildren: A population-based survey in Guangdong province, China by Jia-Hui Li, Hui-Xian Zeng, Jing Wei, Qi-Zhen Wu, Shuang-Jian Qin, Qing-Guo Zeng, Bin Zhao, Guang-Hui Dong, Ji-Chuan Shen, Xiao-Wen Zeng

    Published 2025-01-01
    “…We utilized generalized linear mixed models and weighted quantile sum regression to assess the association between PM2.5 constituents and visual impairment. …”
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