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Evaluation of urban underground space resources using a negative list method: Taking Xi'an City as an example in China 被引量:6
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作者 Mao-sheng Zhang Hua-qi Wang +3 位作者 Ying Dong Lin Li Ping-ping Sun Ge Zhang 《China Geology》 2020年第1期124-136,共13页
Utilization of urban underground space has become a vital approach to alleviate the strain on urban land resources,and to optimize the structure and pattem of the city.It is also very important to improve the city env... Utilization of urban underground space has become a vital approach to alleviate the strain on urban land resources,and to optimize the structure and pattem of the city.It is also very important to improve the city environment,build livable city and increase the capacity of the city.Based on the analysis of existing evaluation methods and their problems,a method for evaluating underground space resources based on a negative list of adverse factors affecting underground space development is proposed,to be primarily used in urban planning stages.A list of the adverse factors is established,including limiting factors,constraining factors and influencing factors.Taking Xi'an as an example,using a geographical information system platform,a negative list of adverse factors for the underground space resources in Xi'an City are evaluated,and preventive measures are proposed.Natural resources,exploitable resources,and the potential growth of exploitable underground space resources are evaluated.Underground space assessment in the different development stages of the city,collaborative utilization and safety evaluation for multiple subsurface resources,environmental impact and assessment,as well as evaluation methods based on big data and intelligent optimization algorithms are all discussed with the aim of serving city planning and construction. 展开更多
关键词 urban geology Negative list Natural resources for underground space Exploitable resources for underground space 3D geological structure model GIS platform urban geological survey engineering Xi'an City Shaanxi Province China
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Urban environmental geological problems and its controlling countermeasures in Shandong province,China
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《Global Geology》 1998年第1期15-15,共1页
关键词 urban environmental geological problems and its controlling countermeasures in Shandong province China
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Distribution and impacts on the geological environment of antiviral drugs in major waters of Wuhan,China 被引量:1
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作者 Jun He Tong Feng +7 位作者 Liang Tao Yue-e Peng Lei Tong Xin-wen Zhao Xin Shao Lin-ya Xu Yan-lin Yang Yong-bo Zhao 《China Geology》 CAS 2022年第3期402-410,共9页
This study investigated water samples collected from the surface water and groundwater in Wuhan City,Hubei Province,China in different stages of the outbreak of the coronavirus disease 2019(hereinafter referred to as ... This study investigated water samples collected from the surface water and groundwater in Wuhan City,Hubei Province,China in different stages of the outbreak of the coronavirus disease 2019(hereinafter referred to as COVID-19)in the city,aiming to determine the distribution characteristics of antiviral drugs in the city’s waters.The results are as follows.The main hydrochemical type of surface water and groundwater in Wuhan was Ca-HCO3.The major chemical components in the groundwater had higher concentrations and spatial variability than those in the surface water.Two antiviral drugs and two glucocorticoids were detected in the surface water,groundwater,and sewage during the COVID-19 outbreak.Among them,chloroquine phosphate and cortisone had higher detection rates of 32.26%and 25.80%,respectively in all samples.The concentrations of residual drugs in East Lake were higher than those in other waters.The main drug detected in the waters in the later stage of the COVID-19 outbreak in Wuhan was chloroquine phosphate,whose detection rates in the surface water and the groundwater were 53.85%and 28.57%,respectively.Moreover,the detection rate and concentration of chloroquine phosphate were higher in East Lake than in Huangjia Lake.The groundwater containing chloroquine phosphate was mainly distributed along the river areas where the groundwater was highly vulnerable.The residual drugs in the surface water and the groundwater had lower concentrations in the late stage of the COVID-19 outbreak than in the middle of the outbreak,and they have not yet caused any negative impacts on the ecological environment. 展开更多
关键词 Water environment Antiviral drugs COVID-19 GROUNDWATER urban geological survey engineering Envionment geological survey engineering WUHAN Hubei Province China
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