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Accessibility and Fairness of Public Service Facilities from the Perspective of Supply and Demand Coordination: A Case Study of Old Urban Area of Guangzhou City
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作者 CHEN Xu LI Xin 《Journal of Landscape Research》 2024年第3期21-26,共6页
The accessibility and fairness of public service facilities are important manifestations of the convenience and equality of urban public service resource allocation.Optimizing the layout of urban public service facili... The accessibility and fairness of public service facilities are important manifestations of the convenience and equality of urban public service resource allocation.Optimizing the layout of urban public service facilities is an inevitable requirement for promoting the construction of people centered cities.This paper takes the old urban area of Guangzhou as the research area,measures the accessibility of multiple types of public service facilities based on an improved two-step floating catchment method,and combines Palma Ratio and location quotient methods to explore the fairness of urban public service facilities from two dimensions:social equity and spatial equity,with supply and demand relationship analysis as the main line.Research has shown that:①there is a significant spatial difference in the accessibility of public service facilities in the old urban areas of Guangzhou,and the comprehensive accessibility is generally higher in the central and southeastern regions of the old urban areas with fewer residential populations;②from the perspective of social equity,the resource allocation of public service facilities in the old urban areas of Guangzhou is in a seriously unfair state(with a fairness index of 2.99),and there are also varying degrees of unfairness within the streets;③from the perspective of spatial equity,the location quotient of public service facilities in the old urban areas of Guangzhou shows a pattern of multil center circles decreasing,indicating a significant spatial mismatch between the accessibility supply side of public service facilities and the demand side of the residential population.The research conclusion will provide scientific basis for optimizing the allocation of urban public service facilities and ensuring the equalization of public services. 展开更多
关键词 Public service facilities ACCESSIBILITY Social equity Space equity guangzhou City
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High-quality Development Path of Night Tourism in Guangzhou:A Case Study of Firefly Night Tour
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作者 JIANG Juan TANG Wei ZHU Yanqing 《Journal of Landscape Research》 2023年第5期89-93,97,共6页
Night tourism often involves a large number of lighting facilities,which consume a large amount of energy.Therefore,one of the unique low energy consumption natural ecological tourism activities—firefly night tour ha... Night tourism often involves a large number of lighting facilities,which consume a large amount of energy.Therefore,one of the unique low energy consumption natural ecological tourism activities—firefly night tour has attracted attention and become an important breakthrough point for night tourism in tourist destinations.In this paper,Guangzhou firefly night tour project is taken as the research object.Based on the comprehensive economic,environmental,and socio-cultural benefits brought by the development of firefly night tour,the resources distribution,current development status,and existing problems of firefly night tour in Guangzhou are analyzed,and its high-quality development paths are proposed from three levels:government,industry,and tourist.The aim is to explore a new model for the economic development of Guangzhou night tour,boosting the transformation and upgrading of the night tourism economy,while also providing reference ideas and value for the development of night tourism economy in other tourist destinations. 展开更多
关键词 Night tourism Firefly night tour guangzhou High-quality development
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The 2023 Intangible Cultural Heritage Brand Summit Kicks Off in Guangzhou
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作者 Guo Ziteng 《China & The World Cultural Exchange》 2023年第4期41-43,共3页
Through the ICH Brand Summit,the ICH participants actively grasp the ICH inheritance rules,adhere to integrity and innovation,adapt to the consumption concept changes and consumption structure upgrading,and introduce ... Through the ICH Brand Summit,the ICH participants actively grasp the ICH inheritance rules,adhere to integrity and innovation,adapt to the consumption concept changes and consumption structure upgrading,and introduce modern business concepts,management methods,business models,and communication methods,so as to showcase the unique charm of China's ICH development and inheritance to theworld. 展开更多
关键词 SUMMIT guangzhou BRAND
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Investigation and Analysis of the Linguistic Landscape in High-end Consumer Business District in Guangzhou——Taking TaiKoo Hui as an Example
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作者 Shimei Xu 《Journal of Contemporary Educational Research》 2023年第8期30-35,共6页
Linguistic landscape has become an emerging research topic in sociolinguistics due to the development of urban linguistic landscape.Based on the development of linguistic landscape in TaiKoo Hui,its diverse characteri... Linguistic landscape has become an emerging research topic in sociolinguistics due to the development of urban linguistic landscape.Based on the development of linguistic landscape in TaiKoo Hui,its diverse characteristics are analyzed,and the language signs,usage,and codes are summarized.It is found that there is poor transmission effect of multilingual landscape information and improper use of linguistic landscape in TaiKoo Hui.This paper concludes that the linguistic landscape of Taikoo Hui can be optimized from two aspects to enhance its attractiveness and competitiveness,including improving the informational function of foreign language signs and regulating the use of linguistic landscape. 展开更多
关键词 guangzhou city High-end consumer business district Linguistic landscape TaiKoo Hui
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A Study on Hawking Language in Guangzhou Applying Sociolinguistics
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作者 Liu Hui 《International English Education Research》 2014年第4期4-7,共4页
From the perspective of sociolinguistics, this paper applies both observation method of covert investigation and oral inter-view to study the hawking language in Guangzhou, including its distribution area, code types,... From the perspective of sociolinguistics, this paper applies both observation method of covert investigation and oral inter-view to study the hawking language in Guangzhou, including its distribution area, code types, content and its relationships with districts and businesses.The survey results show that hawking language reflects the social language stratification condition in Guangzhou. 展开更多
关键词 hawking language SOCIOLINGUISTICS old districts in guangzhou new districts in guangzhou
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Chemical characteristics of PM_(2.5) during a typical haze episode in Guangzhou 被引量:73
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作者 TAN Jihua DUAN Jingchun +4 位作者 HE Kebin MA Yongliang DUAN Fengkui CHEN Yuan FU Jiamo 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2009年第6期774-781,共8页
The chemical characteristics(water-soluble ions and carbonaceous species) of PM2.5 in Guangzhou were measured during a typical haze episode.Most of the chemical species in PM2.5 showed significant difference between... The chemical characteristics(water-soluble ions and carbonaceous species) of PM2.5 in Guangzhou were measured during a typical haze episode.Most of the chemical species in PM2.5 showed significant difference between normal and haze days.The highest contributors to PM2.5 were organic carbon(OC),nitrate,and sulfate in haze days and were OC,sulfate,and elemental carbon(EC) in normal days.The concentrations of secondary species such as,NO3^-,SO4^2-,and NH4^+ in haze days were 6.5,3.9,and 5.3 times higher than those in normal days,respectively,while primary species(EC,Ca^2+,K^+) show similar increase from normal to haze days by a factor about 2.2-2.4.OC/EC ratio ranged from 2.8 to 6.2 with an average of 4.7 and the estimation on a minimum OC/EC ratio showed that SOC(secondary organic carbon) accounted more than 36.6% for the total organic carbon in haze days.The significantly increase in the secondary species(SOC,NO3^-,SO4^2-,and NH4^+),especially in NO3^-,caused the worst air quality in this region.Simultaneously,the result illustrated that the serious air pollution in haze episodes was strongly correlated with the meteorological conditions.During the sampling periods,air pollution and visibility had a good relationship with the air mass transport distance;the shorter air masses transport distance,the worse air quality and visibility in Guangzhou,indicating the strong domination of local sources contributing to haze formation.High concentration of the secondary aerosol in haze episodes was likely due to the higher oxidation rates of sulfur and nitrogen species. 展开更多
关键词 PM2.5 haze episode water-soluble inorganic ions organic carbon elemental carbon guangzhou
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Evaluation of ambient air quality in Guangzhou, China 被引量:26
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作者 ZHOU Kai YE You-hua +2 位作者 LIU Qiang LIU Ai-jun PENG Shao-lin 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2007年第4期432-437,共6页
On the basis of the reported air quality index (API) and air pollutant monitoring data provided by the Guangzhou Environment Monitoring Stations over the last twenty-five years, the characteristics of air quality, p... On the basis of the reported air quality index (API) and air pollutant monitoring data provided by the Guangzhou Environment Monitoring Stations over the last twenty-five years, the characteristics of air quality, prominent pollutants, and variation of the average annual concentrations of SOE, NOE, total suspended particulate (TSP), fine particulates (PM10), CO and dustfall in Guangzhou City were analyzed. Results showed that TSP was the prominent pollutant in the ambient air environment of Guangzhou City. Of the prominent pollutants, TSP accounted for nearly 62%, SOE 12.3%, and NOx 6.4%, respectively. The average API of Guangzhou over 6 years was higher than that of Beijing, Tianjin, Nanjing, Hangzhou, Suzhou and Shanghai, and lower than that of Shenzhen, Zhuhai and Shantou. Concentrations of air pollutants have shown a downward trend in recent years, but they are generally worse than ambient air quality standards for USA, Hong Kong and EU. SOE and NOx pollution were still serious, impling that waste gas pollution from all kinds of vehicles had become a significant problem for environmental protection in Guangzhou. The possible causes of worsening air quality were also discussed in this paper. 展开更多
关键词 air pollution index (API) total suspended particulates (TSP) atmospheric quality guangzhou
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Spatial heterogeneity of urban land-cover landscape in Guangzhou from 1990 to 2005 被引量:15
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作者 龚建周 刘彦随 夏北成 《Journal of Geographical Sciences》 SCIE CSCD 2009年第2期213-224,共12页
Urbanization has boon the most important process that changed land cover landscape in Guangzhou since reformation, especially since 1990. It is essential for monitoring and assessing ecological consequences of urbaniz... Urbanization has boon the most important process that changed land cover landscape in Guangzhou since reformation, especially since 1990. It is essential for monitoring and assessing ecological consequences of urbanization to understand landscape quantitative characteristics and its changes. Based on four land-cover type maps interpreted from remote sensing TM images of 1990, 1995, 2000 and 2005, combining gradient analysis with landscape metrics, the quantified spatial pattern and its dynamics of urbanization in Guangzhou was got. Three landscape metrics were computed within different regional areas including the whole study area, two transects along two highways (one N-S and the other W-E) and radiation zones with equal distance outwards the city center were set. Buffer zones for transects N-S and W-E were outlined along highways. The following questions should be answered in this paper: What responses were implied with changing spatial grain size or extent for landscape pattern analysis? Could gradient progress of urbanization be characterized by landscape pattern analysis? Did landscape metrics reveal urban expanding gradually? Were there directional differences in land cover landscape pattern during urbanizing development? The results gave some affirmative answers. Landscape pattern exhibited obviously scale-dependent to grain size and extent. The landscape metrics with gradient analysis could quantitatively approach spatial pattern of urbanization. A precise location for urbanized area, like city center and sub-center, could be identified by multiple landscape metrics. Multiple adjunctive centers occurred as indicated by analysis of radiation zones around the city center. Directional differences of landscape pattern along the two transects (N-S and W-E) came into being. For example, fragmentation of landscape in the transect W-E was obviously higher than that in the transect N-S. All in all, some interesting and important ecological implications were revealed under landscape patterns of two transects or radiation zones, and that was the important step to link pattern with processes in urban ecological studies and the basis to improve urban environment. 展开更多
关键词 spatial heterogeneity land-cover landscape SCALE guangzhou
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Roles of urban vegetation on balance of carbon and oxygen in Guangzhou, China 被引量:9
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作者 GUAN Dong-sheng, CHEN Yu-juan (Department of Environmental Science, Zhongshan University, Guangzhou 510275, China. 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2003年第2期155-159,共5页
The plant biomass and net primary production(NPP) of urban vegetation in Guangzhou were estimated by dimension analysis, tree truck volume, and harvest methods as well as relationship between biomass and NPP and so on... The plant biomass and net primary production(NPP) of urban vegetation in Guangzhou were estimated by dimension analysis, tree truck volume, and harvest methods as well as relationship between biomass and NPP and so on. The biomass and NPP were respectively 2875150t and 1058122 t/a. They were respectively 392495t and 64948 t/a in the built-up area and 2482655t and 993147 t/a in the unbuilt-up area. It would make plant biomass, especially NPP decline obviously, if the unbuilt-up area were changed to the built-up area. The carbon content of plant was 1328649 for the total and 13.78 t/hm 2 for the mean, and amounts of carbon fixed and oxygen made by urban vegetation were respectively 4.80 t/(hm 2·a) and 12.79 t/(hm 2·a) for the mean and 462624 t/a and 1232430 t/a for the total, which were equal to 1.45 times and 1.04 times of those by human breathing. However, they were only equal to 7.61% and 4.97% of amount of carbon released and oxygen consumption in urban Guangzhou. The biomass and NPP of urban vegetation in Guangzhou only corresponded to 7.8% and 47.3% of those of southern subtropical evergreen broad-leaf forest in Dinghu Mountain. Therefore, the roles of Guangzhou urban vegetation in balance of carbon and oxygen would be increased greatly if it could be conserved and improved in some way. 展开更多
关键词 urban vegetation CARBON OXYGEN BALANCE guangzhou
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Distribution and deposition of polycyclic aromatic hydrocarbons in precipitation in Guangzhou, South China 被引量:9
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作者 HUANG Deyin PENG Ping'an +2 位作者 XU Yigang DENG Yunyun DENG Hongmei 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2009年第5期654-660,共7页
Polycyclic aromatic hydrocarbons (PAHs) were measured in precipitation from March to August 2005 in Guangzhou, South China. Fourteen PAHs were studied, and their total concentrations varied from 616.6 to 3486.7 ng/L... Polycyclic aromatic hydrocarbons (PAHs) were measured in precipitation from March to August 2005 in Guangzhou, South China. Fourteen PAHs were studied, and their total concentrations varied from 616.6 to 3486.7 ng/L in dissolved phase and from 403.8 to 3125.5 ng/L in particulate phase. The estimated deposition loading of PAHs was 3568 ug/m^2 during the monitoring period. The deposition of PAHs was a potential source for Pearl River comparing with the contents of surface water. In addition, the high concentration in precipitation here implied that PAHs pollution was a potential environmental problem in Guangzhou. Most precipitation concentrations of PAHs in March (the last month in winter in Guangzhou) were higher than in the other months (in rainy season). PAHs inclined to be adsorbed to particulate phase with the increase of molecular weight in rainwater. Combustion of fossil fuel and biomass might be the major source of PAHs, while the direct leakage or volatilization from petroleum products might be insignificant. 展开更多
关键词 polycyclic aromatic hydrocarbons distribution coefficient deposition flux PRECIPITATION guangzhou
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Willingness to pay for colorectal cancer screening in Guangzhou 被引量:3
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作者 Qin Zhou Yan Li +2 位作者 Hua-Zhang Liu Ying-Ru Liang Guo-Zhen Lin 《World Journal of Gastroenterology》 SCIE CAS 2018年第41期4708-4715,共8页
AIM To measure the willingness to pay for colorectal cancer screening in Guangzhou, and to identify those factors associated with it. METHODS A face-to-face questionnaire survey for pre-screening population from free ... AIM To measure the willingness to pay for colorectal cancer screening in Guangzhou, and to identify those factors associated with it. METHODS A face-to-face questionnaire survey for pre-screening population from free and non-free colonoscopy districts was used to collect information on demographic characteristics, health behaviours, the intention of the cancer screenings and willingness to pay for colorectal cancer screening. A total of 1243 participants who took part in the pre-screening for colorectal cancer in Guangzhou were collected in the study. Categorical data were compared using the χ~2 test to analyse significant differences. Non-conditional logistic regression and multi-class logistic regression were also performed for multivariate analysis and to estimate the odds ratios.RESULTS The percentage of participants willing to pay for colorectal cancer screening was 91.7%. "Unnecessary" was the dominant reason that participants gave for their unwillingness, accounting for 63.1%. Of those who were willing to pay, 29.2%, 20.7%, 14.8%, 13.0% and 22.4% of participants were willing to pay less than $100, $100-$199, $200-299, $300-$399 and more than $400, respectively. Non-logistic regression analysis showed that respondents who were male, had a high level of education, were from the family with more children/older to raise, and accepted colorectal cancer screening were willing to pay for this screening. Multi-class logistic regression analysis showed that respondents with higher annual household income per capita, from government and private enterprises, government agency/institution and peasants, and less family medical expenditure were willing to pay more.CONCLUSION Willingness to pay for colorectal cancer screening in Guangzhou is high, but the amount of willing to pay is not much. 展开更多
关键词 COLORECTAL cancer SCREENING WILLINGNESS to PAY guangzhou FACTOR
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Landscape ecological analysis of urban vegetation in Guangzhou,China 被引量:3
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作者 Guan Dong sheng, Wang Li rong, Li Zhen College of Earth & Environment Science, Zhongshan University, Guangzhou 510275, China 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 1999年第2期33-39,共7页
The compositions, patches and landscape heteorogentity of Guangzhou urban vegetation are studied by using the principles of landscape ecology in this paper. The results showed that the area of urban vegetation was 26... The compositions, patches and landscape heteorogentity of Guangzhou urban vegetation are studied by using the principles of landscape ecology in this paper. The results showed that the area of urban vegetation was 26901 4hm 2, and the distribution of vegetation types and regional vegetation coverage were uneven. The patch areas of vegetation were large in scenery vegetation and shelter vegetation, and small in street corner vegetation and small garden vegetation. Most of patches fell in range between 100 and 10000 m 2. Only 1.13% of patches were larger than 1000000 m 2. Structure features of vegetation landscape in old urban areas were small patch, high scattering degree, high diversity, random distribution of vegetation patches and high heterogeneity. In new urban areas, the features were big patches, fine planning, medium landscape heterogeneity. Some suggestions are made according to landscape character of urban vegetation in Guangzhou. 展开更多
关键词 landscape ecology HETEROGENEITY urban vegetation guangzhou.
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Excess Commuting in Transitional Urban China:A Case Study of Guangzhou 被引量:5
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作者 LIU Wangbao HOU Quan 《Chinese Geographical Science》 SCIE CSCD 2016年第5期599-608,共10页
During the reform era, Chinese cities witnessed dramatic institutional transformation and spatial restructuring in general and profound change of commuting patterns in particular. Using household surveys collected in ... During the reform era, Chinese cities witnessed dramatic institutional transformation and spatial restructuring in general and profound change of commuting patterns in particular. Using household surveys collected in Guangzhou, China, in 2001, 2005 and 2010, excess commuting measurements are estimated. Excess commuting shows an overall trend of increasing during 1990–1999, and then declining during 2000–2010. We argue that deepening marketization of the jobs and housing sectors has induced spatial separation of jobs and housing. In other words, institutional transition and urban spatial restructuring are underpinning the changes of commuting patterns in Chinese cities. Excess commuting has strong relationship with individual socio-demographic status, which is by and large due to the increasing flexibilities of jobs and housing location choices enjoyed by urban residents. The findings call for considerations on balancing jobs-housing in making public policies relevant to urban development in general, and land use and transportation in particular. 展开更多
关键词 excess commuting jobs-housing balance spatial restructuring guangzhou China
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Dengue Fever Epidemiological Status and Relationship with Meteorological Variables in Guangzhou, Southern China, 2007-2012 被引量:12
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作者 LI Tie Gang YANG Zhi Cong +2 位作者 LUO Lei DI Biao WANG Ming 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2013年第12期994-997,共4页
Ecological methodology plus negative binomial regression were used to identify dengue fever (DF) epidemiological status and its relationship with meteorological variables. From 2007 to 2012, annual incidence rate of... Ecological methodology plus negative binomial regression were used to identify dengue fever (DF) epidemiological status and its relationship with meteorological variables. From 2007 to 2012, annual incidence rate of DF in Guangzhou was 0.33, 0.11, 0.15, 0.64, 0.45, and 1.34 (per 100 000) respectively, showing an increasing trend. Each 1℃ rise of temperature corresponded to an increase of 10.23% (95% CI 7.68% to 12.83%) in the monthly number of DF cases, whereas l hPa rise of atmospheric pressure corresponded to a decrease in the number of cases by 5.14% (95% CI: 7.10%-3.14%). Likewise, each one meter per second rise in wind velocity led to an increase by 43.80% or 107.53%, and one percent rise of relative humidity led to an increase by 2.04% or 2.19%. 展开更多
关键词 Dengue Fever Epidemiological Status and Relationship with Meteorological Variables in guangzhou Southern China WIND
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Private Car Travel Characteristics and Influencing Factors in Chinese Cities——A Case Study of Guangzhou in Guangdong,China 被引量:5
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作者 CAO Xiaoshu CHEN Hemei +1 位作者 LI Linna ZHEN Feng 《Chinese Geographical Science》 SCIE CSCD 2009年第4期325-332,共8页
Taking Guangzhou as a case,this paper adopted a questionnaire survey to gather first-hand data and analyzed the characteristics and influencing factors of private car travel in Chinese cities.As the research indicated... Taking Guangzhou as a case,this paper adopted a questionnaire survey to gather first-hand data and analyzed the characteristics and influencing factors of private car travel in Chinese cities.As the research indicated,trip purposes of private car travel are mainly commute and business affairs with a more flexible trip in the urban core area.And trip intensities are concentrated in a certain extent,with trip frequency being lower in the urban core area than the peripheral area.In addition,the trip time has two significant peaks occurring in the morning and afternoon,and one trough in the midday.And trip spatial distribution is mainly within commute with both residence and employment in urban area and inward commute with residence in suburban area while employment in urban area.Both kinds of commutes direct to the urban area.The study also shows that the characteristics of private car travel are principally influenced by two aspects:travelers' attributes and urban characteristics.The main travelers' social and economic attributes influenced it include the gender,education attainment,age,driving experience and per capita monthly household income.The urban characteristics influenced it mainly cover the land use pattern,public traffic facilities and spatial attributes of residential environment. 展开更多
关键词 car travel travel characteristics private car Chinese cities guangzhou
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Travel Behaviours of Sharing Bicycles in the Central Urban Area Based on Geographically Weighted Regression: The Case of Guangzhou, China 被引量:7
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作者 WEI Zongcai ZHEN Feng +3 位作者 MO Haitong WEI Shuqing PENG Danli ZHANG Yuling 《Chinese Geographical Science》 SCIE CSCD 2021年第1期54-69,共16页
Mobile information and communication technologies(MICTs) have fully penetrated everyday life in smart societies;this has greatly compressed time, space, and distance, and consequently, reshaped residents’ travel beha... Mobile information and communication technologies(MICTs) have fully penetrated everyday life in smart societies;this has greatly compressed time, space, and distance, and consequently, reshaped residents’ travel behaviour patterns. As a new mode of shared mobility, the sharing bicycle offers a variety of options for the daily travel of urban residents. Extant studies have mainly examined the travel characteristics and influencing factors of public bicycles with piles, while the travel patterns for sharing bicycles and their driving mechanisms have been largely ignored. Using one week’s travel data for Mobike, this study investigated the spatial and temporal distribution patterns of sharing bicycle travel behaviours in the central urban area of Guangzhou, China;furthermore, it identified the influences of built environment density factors on sharing bicycle travel behaviours based on the geographically weighted regression method. Obvious morning and evening peaks were observed in the sharing bicycle travel patterns for both weekdays and weekends. The old urban area, which had a high degree of mixed function, dense road networks, and cycling-friendly built environments, was the main travel area that attracted sharing bicycles on both weekdays and weekends. Furthermore, factors including the point of interest(POI) for the density of public transport stations, the functional mixing degree, and the density of residential POIs significantly affected residents’ travel behaviours. These findings could enrich discourse regarding shared mobility with a Chinese case characterised by rapidly developing MICTs and also provide references to local authorities for improving slow traffic environments. 展开更多
关键词 sharing bicycles travel behaviours smart societies geographically weighted regression analysis guangzhou China
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Planning Overall Landscapes,Building a Garden City:on the Revision of Guangzhou Urban Green Space System Planning 被引量:4
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作者 HOU Biqing PENG Feng HOU Zhongyuan 《Journal of Landscape Research》 2013年第Z3期22-25,共4页
The concept of urban green space system planning was proposed after analyzing the background of compiling Guangzhou green space system planning and current situation of local green spaces,i.e. design landscape pattern... The concept of urban green space system planning was proposed after analyzing the background of compiling Guangzhou green space system planning and current situation of local green spaces,i.e. design landscape pattern of Guangzhou City during urban agglomeration of the Pearl River Delta,and highlight Lingnan cultures(Lingnan refers to south of the Five Ridges) and features of "Flower City"(another name of Guangzhou). Key points of planning are protecting ecological barriers in the north,improving urban garden structure in the center,using wetland reasonably in the south,to maintain integrality and continuity of the landscape pattern. 展开更多
关键词 The PEARL River Delta Green space system PLANNING COMPILATION guangzhou GUANGDONG gardens
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RELATION BETWEEN THE MRT BUILDING AND UNDERGROUND SPACE EXPLOITATION——A Case in Guangzhou City 被引量:5
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作者 LIWen-ling YANXiao-pei WANGFang 《Chinese Geographical Science》 SCIE CSCD 2003年第4期364-369,共6页
On the basis of analyzing the history and characteristics of the undergroundspace exploitation and the urban space development in Guangzhou, and making a thorough study on theunderground space exploitation based on th... On the basis of analyzing the history and characteristics of the undergroundspace exploitation and the urban space development in Guangzhou, and making a thorough study on theunderground space exploitation based on the subway building, this paper points out some mam problemsin the exploitation of underground space in Guangzhou, and emphasizes that Guangzhou must developthe underground space on a large scale with the aid of the subway building, and puts forward aproposal on the urban space coordinate development between on-ground and underground in GuangzhouCity. 展开更多
关键词 metro rail transit (MRT) underground space guangzhou city
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Water quality and eutrophication in the Guangzhou Sea Zone of the Pearl River estuary 被引量:3
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作者 魏鹏 黄良民 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2010年第1期113-121,共9页
To gain a better understanding of water quality and eutrophication, we investigated the seasonal and spatial distribution of water quality at 17 stations in the Guangzhou Sea Zone (GZSZ). Nutrients, chlorophyll-a (... To gain a better understanding of water quality and eutrophication, we investigated the seasonal and spatial distribution of water quality at 17 stations in the Guangzhou Sea Zone (GZSZ). Nutrients, chlorophyll-a (Chl-a), salinity, chemical parameters were determined in February, May, oxygen demand, and other physical and chemical August and October from 2005 to 2007. The concentrations showed ranges of 93.2-530.4 μmol/L for dissolved inorganic nitrogen (DIN), 0.62-3.16 μmol/L for phosphate (PO4-P) and 50-127 μmol/L for silicate (SiO3-Si), The results indicated that DIN was strongly influenced by domestic sewage coming from Guangzhou City and NO3-N was the main form of DIN in most areas, while concentrations of phosphate and silicate were generally controlled by Pearl River runoff, land-based sources along the land or islands, and algae assimilation. N/P ratios were very high in both dry season and wet season, and varied from 57 to 667, suggesting that P was potentially the most limiting nutrient in the GZSZ. The concentrations of Chl-a were 3-96 μg/L, and were highly correlated with the distribution characteristics of COD, The concentrations of nutrients have increased over the past two decades (1982-2007). This means it is necessary to control the input of nutrients to the GZSZ, especially that of phosphate. 展开更多
关键词 distribution NUTRIENTS EUTROPHICATION guangzhou Sea Zone
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Building Height Trends and Their Influencing Factors under China’s Rapid Urbanization:A Case Study of Guangzhou,1960–2017 被引量:3
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作者 SUN Wu LI Tao 《Chinese Geographical Science》 SCIE CSCD 2020年第6期993-1004,共12页
Understanding the spatiotemporal patterns of three-dimensional urban forms,especially building height,can have important implications for improving urban air quality and mitigating the urban heat island effect by opti... Understanding the spatiotemporal patterns of three-dimensional urban forms,especially building height,can have important implications for improving urban air quality and mitigating the urban heat island effect by optimizing urban planning and management policies.This study investigated building height evolution and its influencing factors over approximately half a century(1960–2017)in Guangzhou,China.The results indicated that the logarithmic declines in height,quantity,and area of urban buildings followed Zapf’s law,which restricts the three-dimensional shape of the urban form.The urban building height decreased from the center to the periphery of the city and decreased with decreasing altitude and increasing distance from main roads.These characteristics constituted the three main spatial differentiation rules of building height in the central district of Guangzhou,and all exhibited a logarithmic decrease,which gradually strengthened over time.The development of a double-layered height structure of low-rise and high-rise buildings between 1990 and 2017 was a notable manifestation of the increase in vertical urban height over time.The three factors of city center,altitude,and accessibility,which represent centrality,low relief,proximity to water,and proximity to road networks,highlighted the roles of traffic accessibility and commercial attraction in building height evolution.The importance of location macroscopically depends on the combined effect of the geographical pattern,urban planning,and market forces of cities located on a plain near hill or by a river.The principle of profit orientation restricted spatiotemporal building height patterns. 展开更多
关键词 building height urban form ALTITUDE ROAD formative mechanism guangzhou China
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