Analysis of the influence factors of cultivated land transfer in Guangdong coastal important agricultural areas based on geodetectors by Zhaogang Fu, Zhaogang Fu, Qingyi Xue

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A patient with long-term diabetes dies following infection with Francisella novicida in Guangdong province, China: a case report by Linjin Fan, Jialong Guan, Lizhi Feng, Yulong Wang, Huimin Zeng, Ying Zhu, Hao Li, Qiang Chen, Linghua Li, Jun Qian, Linna Liu, Yueping Li, Wei Zhao

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Analysis of Variation Characteristics of the Annual Maximum Flood Flow of Main Streams in Guangdong Province by LIANG Yuanyuan

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Supervisory Monitoring Technology System for Key Drinking Water Sources in Guangdong-Hong Kong-Macao Greater Bay Area by CUI Fan, KOU Xinyue, FENG Youbin, XIE Yuning, HE Yingqing, ZHENG Ning

“…In order to resolve the contradiction between the high demand for water resources,water ecology and water environment in the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) and the insufficient supervision capabilities in the water conservancy industry,and achieve the transformation from passive management to active management of key drinking water sources in the GBA,this paper carries out supervisory monitoring of key drinking water sources through remote sensing macro monitoring,UAV cruise monitoring,fixed-point monitoring and other intelligent monitoring technology system.The results show that:①After application of a supervisory monitoring technology system for key drinking water sources,the full-coverage,dynamic and quasi-real-time monitoring of 35 key water sources in the GBA is realized,and the risk sources and water problems can be identified efficiently.②For identifying five suspected risk sources in water source areas,namely construction projects,key river (reservoir) tributaries,temporary shipping stops,material stacking places,agricultural production activities by remote sensing macro monitoring and UAV cruise monitoring,the accuracy rate is 65.7%.③For the chlorophyll a and COD_Mnmonitoring of the water source of main Guangzhou-Dongguan-Huizhou Dongjiangbei River by remote sensing macro monitoring and artificial fixed-point monitoring during the same period,the monitoring results of the two technical means are in good agreement.Therefore,with application of the technology system in supervision and management of key drinking water sources,the smart water conservancy supervision and business management are deeply integrated,and the effective technical means for supervision and management are available.…”
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Prevalence of breast fibroadenoma in healthy physical examination population in Guangdong province of China: a cross-sectional study by Yingjia Li, Lijun Zhu, Xiaoqi Zeng, Shanshan Jiang, Simin Ruan, Huanrong Ma, Changsheng Ye, Jianyu Dong

“…Objective To provide an accurate assessment of the prevalence of breast fibroadenoma in a large population and to confirm the diagnostic accuracy of ultrasound for fibroadenoma.Design This was a cross-sectional survey.Setting This research was conducted at Nanfang Hospital, Guangzhou, Guangdong, China.Participants A total of 11 898 women aged 18–40 years who underwent breast screening between 1 January 2019 and 31 December 2019 were included in the fibroadenoma prevalence study. …”
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Speech Delivered by Mr. Li Rong -gen, Vice Governor of Guangdong Province, in the Inaugural Meeting of the Pearl River Flood Control and Drought Relief Headquarter

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Analysis on Precipitation Variation Trend and Distribution Features in Time and Space in Guangdong Province by WANG Zhu

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Factors associated with poor mental health outcomes in nurses in COVID-19-designated hospitals in the postepidemic period in Guangdong Province: a cross-sectional study by Min-Rou Zhang, Hui-Gen Huang, Han-Xi Chen, Ya-Fang Deng

“…Regression analysis was used to analyse the associated factors of psychological stress among variables such as age, years of nursing experience, weekly working hours, anxiety symptoms, somatisation symptoms and compulsive symptoms.Results A total of 1284 respondents from COVID-19-designated hospitals in Guangdong Province were studied. The average CPSS score for all respondents was 22.91±7.12. …”
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Research on Temporal and Spatial Changes of Extreme Climate in Guangdong Province from 1961 to 2016 by HUANG Weijie, ZHANG Dawei, ZHANG Xin, LI Qingfeng, LI Wangming, WANG Yadi

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Probe into Several Problems in the Provincial-level Government Purchasing in Guangdong Province by QUAN Wan-you

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Research on the Temporal and Spatial Evolution Characteristics of Evapotranspiration and Its Components of Guangdong Province Based on GLEAM Dataset in the Past 30 Years by WANG Dayang

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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

“…Spatio-temporal changes in rice distribution in Leizhou City, Guangdong Province, China, from 2017 to 2021 were analyzed. …”
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Primary Research on Guangdong Support Policy for Population Relocation in Later Period of Reservoir Construction in Guangdong Province by HAO Zhi-jian

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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

“…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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Water Resources Endowment and Development in Nine Cities of Guangdong Province under Background of Guangdong-Hong Kong-Macao Greater Bay Area by LIANG Yingshan, LI Xiangjiao, LIU Yue

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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

“…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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Introduction to the Design of Water Regime Information Telemetering Station RTU of Guangdong by 李少平

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Characteristics and Classified Governance Strategies of Medium and Small Estuaries in Guangdong by CHEN Ying, WANG Shijun, HE Yong

“…This paper adopted the methods of field investigation,remote sensing analysis,and sedimentary dynamic analysis,summarized the characteristics of medium and small estuaries in Guangdong Province,and analyzed the main problems in the ecological governance of the estuaries.In addition,the paper studied typical experience in governing medium and small estuaries both in China and abroad and proposed classified governance strategies for medium and small estuaries.The results show that:①Medium and small estuaries in Guangdong Province are mainly divided into sandbar-lagoon estuaries,tidal channel estuaries,and drowned valley estuaries.Specifically,sandbar-lagoon estuaries are widely distributed.Tidal channel estuaries are mainly distributed in the west of Guangdong Province,and drowned valley estuaries can be found in the Leizhou Peninsula,the east coast of Shenzhen,and the east of Huizhou.②Medium and small estuaries face some problems,such as imperfect flood control systems,fragmented management,ineffective regional ecosystem service functions,and defective policies and systems for the construction of Lingnan water culture and the excavation,protection,and utilization of water heritage.③The paper proposed overall strategies of coordinated land and maritime development and systematic governance for medium and small estuaries as well as classified governance strategies for different estuaries and rivers,and the research results can provide some reference for the governance of medium and small estuaries in Guangdong Province.…”
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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

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Spatiotemporal occurrence, distribution, and risk of steroid hormones along the coast of Guangdong, China by Xing Zhao, Xing Zhao, Yunlin Jiang, Hanqiang Deng, Yao Lu, Suimin Li, Yuxia Jiang, Kaifeng Sun

“…Previous studies of steroid hormones have predominantly focused on terrestrial environments, with few studies conducted in marine environments.MethodsIn this study, we analyzed the occurrence of 44 steroid hormones in seawater, sediment, and marine organisms collected from the coast of Guangdong, China.ResultsTotal concentration of steroid hormones ranged from 0.11 to 30.15 ng/L in seawater, ND to 8.58 ng/g (dw) in sediments, and ND to 80.52 ng/g (ww) in organisms. …”
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