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• 2013 Volume 33 Issue 2
  Published: 30 March 2013

    

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Original Paper
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  Original Paper

  Possible Effects of Sea Level Rise in the Future on the Coral Reef in Weizhou Island

  TANG Chaolian,ZHOU Xiong,ZHENG Zhaoyong,MO Shaohua,TANG Wangxian

  2013, 33(2): 119-123.

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  Based on historical records of rainfall, salinity, PH, sea level, Max wave height and ecological surveys (Reef Check), we analyzed the effects of climate change and sea level rise on the coral reef in Weizhou Island. Our results suggest that 1) The rainfall, water salinity and PH are in the coral growth suitable range in Weizhou Island with an average annual rainfall of 1388mm, water salinity of 32.1 and PH of between 8.0 and 8.23; 2) Once-in-a-century hydrological extrema obtained from P- Ⅲ formula are that, annual rainfall 2313mm, Max sea level 514cm and Max wave height 6.1m; 3) the skeletal extension rate of Porites coral is 6～8mm/a, heigher than sea level rise rate (2.2mm/a) in Weizhou Island. The maximum tide range is 450～500cm, when the minimum tide occurs in the aestival daytime, coral bleaching will ascend in frequency. 4) If 512cm of maximum tide hight and 580cm of maximum wave height both occur when the sea level rise 30cm in the future, the corel reef in Weizhou Island will not be destroyed thoroughly.
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  Original Paper

  Regional Characteristics of Holland B Parameter in Typhoon Wind Field Model for Northwest Pacific

  LIN Wei,FANG Weihua

  2013, 33(2): 124-132.

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  Holland B is a key shape parameter of typhoon wind field, which describes the range and intensity of destructive wind. In this paper, based on JTWC best track dataset and historical reconnaissance data, the statistical models of radius of maximum wind speed and flight-level maximum wind speed are established. 7 Holland B estimation methods are compared according to historical ground observation data, and the optimal Holland B parameter model is determined. Taking Typhoon Khanun as an example, the sensitivity analysis of Holland B parameter is conducted, where a greater value of B represents a higher maximal wind and a narrower maximal wind zone. Based on the CMA-STI best track dataset, the Holland B parameters of historical typhoons in Northwest Pacific are calculated, revealing two characteristics of the spatial distribution of historical Holland B parameters: 1）Typhoons with high Holland B occur more frequently at lower latitudes; 2）The provinces with landing typhoons of high Holland B are Hainan, Guangdong, Guangxi, Fujian and Zhejiang.
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  Original Paper

  Evaluation of Eco-environmental Quality in Xinfengjiang River Basin Based on Remote Sensing

  ZHU Yuanhui,LIU Kai,AI Bin,ZHOU Xia,ZHANG Hong’ou,HE Zhiqian

  2013, 33(2): 133-140.

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  It is significant to evaluate eco-environmental quality of the Xinfengjiang River Basin, which is one of the most important drinking water sources in Guangdong Province. In this paper, combined with Remote Sensing images, land use data, meteorological data and DEM data, evaluation indices were respectively made for quantifying eco-environmental quality of the basin in 1988, 1998 and 2011. According to principal component analysis, composite index was retrieved from the weighted variables,and the spatial-temporal variation pattern of eco-environmental quality was then analyzed. It was shown that most of the study area preserved high quality of eco-environment, which was mainly under the influence of factors such as hydro-thermal and meteorological conditions, geomorphic aspect and land cover types. During the period from 1988 to 2011, more than 80 percent of the study area performed as excellent eco-environment, only less than 5 percent of the study area showed poor quality in eco-environment, whose percentage in 1988, 1998 and 2011 was 0.93%, 0.67% and 2.93% respectively. It was also shown that plain areas in the south and north of the basin were of poor quality, most of which was covered with construction land and farmland and mainly interfered from anthropogenic activities. However, quality of eco-environment in the Xinfengjiang River Basin was slightly declined with time variation. It is considered that RS and GIS can provide available and scientific method for eco-environment evaluation, as compared with conventional method, and it would be widely applied in the future.
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  Original Paper

  Small-scale Population Number Calculation Method Based on Settlement Evolution for Karst Mountain Areas: A Case Study of the Houzhai River, Puding, Guizhou

  ZHENG Jian,LUO Guangjie,LI Yangbing,ZHOU Zhiming,WANG Shijie

  2013, 33(2): 141-146.

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  Access to the data of population number is of great significance for in-depth analysis of man-land relationship, but conventional techniques to obtain the data of the spatial distribution of population demand a lot of manpower, material and financial resources. In this paper, the Houzhai River area is taken as an example to be studied, where the relationship between population number and spatial scale of the settlements in Karst mountains is established based on high resolution remote sensing data source and the method of settlement survey and GIS spatial analysis. According to different physiognomy types and hierarchy of the settlements, regressive analysis is made on the dynamic population quantity of independent settlements in four periods.The steps are: 1) establish linear relationship between the population and the size (area) of the settlements to calculate the population of independent settlements whose data can not be obtained accurately in the four periods; 2) establish linear relationship between the population and the size of the settlements in different physiognomy areas to obtain the data of the population spatial distribution; 3) classify the settlement space distribution scales of different periods into high, medium and low levels according to the hierarchical effect of the settlements, calculate per capita area of the settlements whose population data have been obtained, and then calculate the population number of the settlements whose data are lacking; 4) calculate the average population number of each individual settlement in each period on the basis of the three methods above. The results calculated in this paper are proved to be basically effective and accurate, as compared with the data from county record, population data and field investigation.
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  Original Paper

  Guangzhou Population Spatial Distribution and Polycentricity Spatial Structure Evolution

  JIANG Li,WU Fulong

  2013, 33(2): 147-155.

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  This paper uses the tabulations from 2000 and 2010 Population Censuses of Guangzhou to investigate the city’s demographic distribution and spatial structure. Spatial analysis, monocentric and polycentric population density models are implemented as analytical tools. The results are as follows: (1) The population spatial dynamic distribution of Guangzhou is that “population of the inner suburb grows fast, while that of the outer suburb slower, and that of the core circle the slowest”. (2) The population of Guangzhou’s inner city keeps growing and it also spreads to the suburban areas. Guangzhou’s polycentric structure has been consolidated by the increment of its subcentres. In 2000 there were two subcentres (Xinjing Street in Baiyun District and Fengyang Street in Haizhu District) and in 2010 there were six (Tongde Street in Baiyun District, Fengyang Street in Haizhu District, Tangxia Street and Shahe Street in Tianhe District). The subcentres are able to attract more people and also affect population distribution more significantly.
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  Original Paper

  Spatio-Temporal Pattern and Variation Characteristics of Population Distribution at County Level in the Pearl River Delta

  YOU Zhen,WANG Lu,FENG Zhiming,YANG Yanzhao

  2013, 33(2): 156-163.

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  The Pearl River Delta (PRD) is one of the regions with fastest economic development in China. The process of population concentration and decentralization in this region has been being focused by researchers. In this study, based on the population census data in the PRD from 1982 to 2010, we analyzed the growth and reduction of population, the concentration level of population and stability of population so as to investigate the change of spatial pattern of the population’s concentration and decentralization. The results showed that: (1) The growth rate of population from 1982 to 2010 in the PRD was 215.61%, which far exceeded the growth rate averaged over the whole country; (2) The population increased more significantly in the middle and east parts of PRD; (3) The population agglomerating level in the PRD was greater than that in the whole country. The city of Shenzhen, Guangzhou and Dongguan had become the cluster centers in PRD; (4) More and more floating population moved into PRD, especially in the middle and east parts, from 1982 to 2010. The increasing population and agglomerating level of population in the study region were mainly due to this influx. However, the rate of the influx in PRD slowed down in the past decade.
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  Original Paper

  Bidding Wave for Mega Event Abroad：Interpretation from the Political Perspective

  JIN Wenmin

  2013, 33(2): 164-170.

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  It’s a paradox that there’s little consensus about mega-events’ impacts but there’s great enthusiasm to bid for it. On one hand, its impacts are still unclear that causes the academic challenge and controversy. On the other hand, the enthusiasm of bidding for mega-event is unabated, and spreads from developed to developing countries. Thus, the non-economic motives hidden under the economic objectives are of concern. This article explains the phenomenon from non-economic perspective by clarifying the motivations and its political effects during the bidding process and after the event. The main conclusions are as follows: (1) Globalization trends, transition from industrialized to post-industrialized country, the change of the urban policy from state, and the role of sport mega-event become the external forces for the bidding wave; (2) mega-events with complex motivations have become the tools of government policy. (3) it is pushed by elite coalitions with different pursuits. (4) mega-events are used as tool for legalization: the legitimacy of spreading national identity, as the legitimizing way of receiving central government’s support, especially financial support etc. (5) Developing countries, especially African countries’ bid also reflects the will of improving unequal international relations and becoming a “gateway to Africa”.
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  Original Paper

  Port System Evolution Model in Pearl River Delta

  WU Qitao,ZHANG Hongou,YE Yuyao,CHEN Jing

  2013, 33(2): 171-177.

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  The Pearl River Delta is an important area for layout of ports in China. With a long history and unique political environment, the regional port system in the delta has a unique pattern and development process. This paper constructs a Pearl River Delta port system evolution model from the long time sequence after revealing the development features of the ports in different stages. The Model has certain difference from those of western countries’ as well as the colonial countries’. The port system in the delta has fluctuation characteristics, combining centralization and decentralization development trend. The evolution model has an initial stage of single polarization development stage, rather than the Western model’s balanced development stage. Furthermore, the model explains the transfer process of key port spatial location.
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  Original Paper

  Growth and Spatial Development of Producer Services in China

  Fiona F. YANG,Anthony G. O. YEH

  2013, 33(2): 178-186.

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  Producer services are essential sector to facilitate economic growth and shape regional economies. They have experienced dramatic expansion in China in the recent decade. This paper attempts to identify the nature of producer service growth and analyze their spatial development in the Chinese urban system from a disaggregated perspective. The findings suggest that (1) despite their impressive growth over the past decade,producer services accounted for a relatively low share of the national economy in terms of both output and employment; and (2) geographically, producer services are becoming spatially more concentrated across the urban system, which has significantly reorganized urban hierarchy and inter-city connections. Stimulated by economic growth and policy support from the central government,producer services in China are expected to continue to grow at a rapid speed. The development of producer services has become a new and popular strategy for urban development in many Chinese cities in the era of globalization. However, the unequal distribution of producer services suggests that large and extra-large cities will be more competitive in the new wave of urban development. As such, small and medium cities need to conduct careful market studies and analyses before they initiate projects for producer service development to avoid the waste of land and investment.
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  Original Paper

  Multi-supply Pattern of Community Health Services in the Transition Period of China： A Case Study of Tianhe District in Guangzhou

  QI Lanlan,ZHOU Suhong,YAN Xiaopei

  2013, 33(2): 187-194.

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  Community health service is one of the key elements of basic public service that is community-oriented and to solve the basic medical needs of primary health service. The main structure and operation system of public service provision change because of China's social and economic transition. Community health service at the present stage has dual properties, the market mechanism is introduced into on the one hand, and traditional institutional characteristics still exist on the other hand. The paper uses the sixth census data provided by the Guangzhou Municipal Bureau of Statistics as a source of demographic data, community health care institutions provided by the Health Bureau of Tianhe District as the source of community health service, and takes Tianhe District in Guangzhou as a case to be studied. In the paper four types of supply models in community health services in Tianhe district in Guangzhou are summed up: government supply, work unit supply, collective economy supply and market supply. They are all under the leadership of the Health Bureau, supervised by the government and serve as the basis of the urban health care system. At the same time they have differences in the main supply, service targets, financing and financial management and personnel management. Both the common and different features of the various modes of supply form a complementary system of coexisting multivariate models. Based on the analysis of the coexistence of the multi-mode system, we draw the conclusion that the quasi-public properties of the community health services, the transformation of social and economic system and urban-rural dual system, the diverse needs of the residents and the interests of the different supply and their combined effects make the mechanism of multi-mode coexistence. Only taking full advantage of multi-mode supply, full range of coordination mechanisms and reasonable system design can gain access to equalization of community health services.
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  Original Paper

  Risk Assessment of City Community Public Safety： A Case Study of Chigang Community of Humen Town, Dongguan

  SHANG Zhihai,OU Xianjiao,ZENG Lanhua,HE jieqiong

  2013, 33(2): 195-199.

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  In this paper the risk assessment index system is divided into 4 levels: the hazard of risk sources, the exposure of risk receptor, community’s capacity to cope with the risk, and risk perception of residents. The risk is assessed with catastrophe progression method. Chigang community of Humen town,Dongguan, is taken as an example to be studied. Recursive calculation is made through normalization of various index. The results show that the risk assessment value for Chigang is 0.295 and the public safety risk is very low, namely the public safety is high. Based on catastrophe progression method, the community risk assessment indexes are selected from subjective and objective aspects, in which the residents' risk perception is specially emphasized. So the advantage of catastrophe progression method can be brought into full play. It is expected that the result of the study could better evaluate city community public safety.
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  Original Paper

  Geographical Interpretation of “Chaozhou Cuisine Tops in the World”

  LI Jiancheng,CHEN Fei

  2013, 33(2): 200-205.

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  The Chaozhou Cuisine can be traced back as early as Qin Dynasty. By Ming and Qing Dynasties, the style of Chaozhou Cuisine had been formed. It has experienced late development and catched up with other cuisines in China. From the perspective of cultural geography, this article explains that Chaozhou Cuisine, with its core culture, originated in the Chaozhou-Shantou plain. However, the key node of its development lays in Hong Kong. With the tide of trading business in Hong Kong, the Chaozhou Cuisine rise toward gentrification and fine food. Along with the migration of Chaozhou-Shantou people, Chaozhou Cuisine has formed a tripod pattern of Chaozhou-Shantou local, Hong Kong and Southeast Asia-style and spread to all over the world. The development of Chaozhou Cuisine and its characteristics are closely related to the physical geography, human culture and economic environment. It is distinguished by its banquet style, taste, and process methods. The authors propose that the future development of Chaozhou Cuisine is to focus on the promotion of the concept of health, and enhance of the quality of cultural element and food processing. The refined food of the Chaozhou spirit will improve its competitiveness.
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  Original Paper

  Features and Evolution of Spatial Economic Effects of Regional Tourism in Hunan Province, China

  CHEN Gangqiang,LI Yinghui

  2013, 33(2): 206-211.

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  By using the method of variation coefficient, Gini coefficient and multivariate Moran’s I, this paper reveals the features and evolution of spatial economic effects of intra－regional disparity and extra－spatial correlation of tourism in Hunan province from 2001 to 2010. It is demonstrated that shrinking regional disparity of tourism does not necessarily imply that tourism development will narrow the gap of regional economic development. The results suggest that the regional difference of tourism is reduced continuously in the province, that only indicates that the effects to enlarge the regional economic difference are weakening. But the concentrative degree of tourism spatial distribution is decreasing, indicating that the influences of tourism development on adjusting spatial concentration of regional economy are changing from the effects of enlarging the economic gap to the ones of narrowing the gap, and the effects of enlarging the gap are weakened continuously, while the ones of narrowing the gap increasing. On the other hand, as a whole, extra－spatial correlation of tourism does not significantly enlarge the regional development disparity, but the increasing local spatial correlation of tourism enlarges the disparity of local regional development because of strengthening the formed pattern of regional economic disparity.
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  Original Paper

  Spatial Differences of Tourism Economy in Yangtze River Delta from the Perspective of Social Network

  FANG Yelin,HUANG Zhenfang,TU Wei

  2013, 33(2): 212-218.

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  This paper uses a revised gravity model to build tourism economy relationship network of 16 cities in the Yangtze River Delta, and uses the method of SNA to analyze the network and explain the reason of their spatial differences. The density of the tourism economy relationship network of the Yangtze Delta is 0.533, the size is 128, and the diameter is 3. The density of the network is at a middle level. The results of the analysis of centrality, power index, structural holes, and core-periphery degree show that Shanghai has the highest scores, being the core zone of the network, while Zhoushan and Taizhou have low scores, being the periphery zone of the network. The analysis of spatial autocorrelation shows that the spatial clustering trend has a strong positive correlation with network characteristics, the position of each city in the network is very important, which can have a great influence on the development of its tourism economy. Social network analysis can reveal the internal mechanism of regional tourism development differentiation; and can provide a new perspective for analysis of the regional tourism differentiation.
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  Original Paper

  Spatial Distribution of Road Dust Magnetic Susceptibility of Xuchang and Its Pollutional Implications

  YAN Hui,WU Guoxi,LI Jingzhong,LI Dong

  2013, 33(2): 219-223.

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  The use of magnetic susceptibility characteristics of the urban road dust to reflect the city's pollution is an important part of the environmental magnetic studies. The results of road dust magnetic susceptibility of Xuchang city show that: Road dust magnetic susceptibility ranges from 98.33～600.92×10-8 m3·kg-1, and the average value is 319.72× 10-8 m3·kg-1, frequency magnetic susceptibility ranges from 0.20～5.94%, with an average of 1.92%. The high magnetic susceptibility values and the low frequency magnetic susceptibility suggest that road dust has less super paramagnetic particles content, and the high magnetic susceptibility is mainly caused by the magnetic particle deposition due to human activities. Spatial characters of road dust magnetic susceptibility display a decreasing trend from northwest to southeast, which mainly caused by the city's function zoning, population density, traffic flux and environmental quality. The road dust samples of Tiexi District and the Old District have the highest magnetic susceptibility values, reflecting the serious environmental pollution that caused by high population density, heavy traffic flux and industrial activities. In East District, High-tech Development District and Southeast District the road dust magnetic susceptibility values are lower, indicating the better environmental condition. Moreover, due to the heavy traffic in the commercial centers and the freeway entrances, road dust magnetic susceptibility values are higher than those in surrounding areas. The magnetic susceptibility characteristics of road dust can intuitively reflect the pollution of the city.
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  Original Paper

  Content of Heavy Metals of Funaria Hygrometrica in the Pearl River Delta and Its Environmental Implication

  WU Qinghua,MIN Xingling,ZHOU Yongzhang,LU qiang

  2013, 33(2): 224-230.

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  The extensive exploitation and overuse of the of resources have resulted in environmental pollution and ecosystem damages in the Pearl River Delta area. The article focuses on the heavy metal contents of mosses in Guangzhou, Zhaoqing and Huaiji, which represent the core area, periphery area and outside area of Pearl River Delta area, respectively. The result shows that the contents of heavy metals of mosses present a gradient distribution, reflecting the fact that the development of industry and transportation increases the emission of heavy metals in the area. The emission of Cu, Pb, Zn, Cr and Cd in Guangzhou is the highest among the three cities, where the average contents of those elements in mosses are 47.64, 68.83, 252.87, 64.20, 1.02 mg/kg,respectively. and that of Huaiji is the lowest, where the average contents are 16.42, 11.80, 97.13, 32.43, and 0.21 mg/kg, respectively. Zhaoqing is situated between Guangzhou and Huaiji, where the average contents are, respectively, 36.34, 40.51, 143.49, 51.29, and 0.64.mg/kg. The difference of the heavy metal contents reflects the difference of their sources. There is a positive correlation among Cd, Pb, Zn and Cu, that shows that they come from the same pollutant source. However, the relative weak correlation between Cr and Cd, Pb, Cu, Zn shows that Cr has different pollutant source. Maybe Cr has low possibility to pollute the atmosphere. When the industrial upgrading of Guangzhou reaches a certain level and the tertiary industry takes up proper proportion, the situation of heavy metal pollution of mosses would remain at a stable and low level.
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  review

  Review on the Game of Rights and Interests in China's Urban Renewal

  XIE Dixiang,Huo LEE

  2013, 33(2): 231-236.

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  Urban renewal is an important way of urban development, the key and difficulty lie in equilibrating the game of the rights and interests between stakeholders. In the period of rapid development of urbanization, there is a large-scale urban renewal in our country, which makes the game of rights and interests in China's urban renewal form unique pattern and characteristics, and it is also more complicated than that in western developed countries. This paper points out that, with the deepening of studies on China's urban renewal, some achievements have been gained in the studies of game of stakeholders' rights and interests. But there are some problems and shortcomings need to be solved in the studies, such as the relationship between the stakeholders and social movement phenomena in urban renewal. Future studies should make comprehensive use of the multidisciplinary theories, focus on in-depth study of the typical cases, and gradually build a game theory of the rights and interests in urban renewal based on China's national conditions.