Showing 1 - 20 results of 374 for search '"Guangdong Province"', query time: 0.07s Refine Results
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    Equilibrium study of logistics demand and logistics resource allocation in Guangdong Province by Liu Lianhua, Wu Yanling, Lyu Shiqi, Chen Zexian

    Published 2025-01-01
    “…As a leading region in China’s reform and opening-up, Guangdong Province has experienced high economic growth. …”
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    Blockage Types and Status Evaluation of Drainage System in Highway Tunnels in Guangdong Province by LI Kejian, LIU Xiabing, WENG Jianhong, ZHOU Yu

    Published 2024-01-01
    “…In order to evaluate the blockage status of the drainage system in operational highway tunnels,this paper summarized the types of problems and blockage materials in highway tunnel drainage systems and proposed an evaluation method for blockage status based on investigations of several highway tunnels in Guangdong Province.The results primarily indicated the following:① The water leakage problems in tunnels were closely related to seasonal rainfall over time and were spatially connected to the distribution of unfavorable geological conditions such as karst.and the decline of drainage function caused by drainage system siltation was an important cause of tunnel water damage.② The types of blockage materials in the highway tunnel drainage system included silt,sand and gravel,concrete blocks or foreign matter,and crystallization or scale deposits.The proposed evaluation indicators for blockage status were as follows:filling degree,flow status,turbidity degree,and accumulation degree.③ Based on the priority division of evaluation indicators for blockage status, a blockage status evaluation method of highway tunnel drainage systems was proposed,and this method has been successfully applied to the drainage system remediation project of the Xinwu Tunnel.The research results can provide reference for the operation and maintenance of highway tunnel drainage systems.…”
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    Temporal and Spatial Trends of Precipitation and Mutation in Guangdong Province over the Past 60 Years by XU Chengyi

    Published 2023-01-01
    “…Based on the Mann-Kendall test,linear regression analysis,and sliding t-test,this study analyzes the daily precipitation data from 32 meteorological stations in Guangdong Province from 1960 to 2019.The results show that except for Guangzhou and Zengcheng in the Pearl River Delta region,which exhibit a significant increasing trend in annual precipitation,there is no significant increasing trend in annual precipitation in other regions of Guangdong Province.The spatial distribution of average annual precipitation shows that the Pearl River Delta and its adjacent areas are the areas with the highest precipitation,which decreases gradually towards the surrounding areas.In the analysis of annual precipitation mutations,eight meteorological stations are found to have different numbers of mutation points in different years.Among these,only the Pearl River Delta region shows an increasing mutation in annual precipitation in 1972.The research results can provide a reference for the management of water resources and flood prevention strategies in Guangdong Province to cope with climate change.…”
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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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