Public parks provide many benefits to the community as the representatives of green area. The allocation of public places plays an extremely important role in the daily lives of inhabitants especially for recreational...Public parks provide many benefits to the community as the representatives of green area. The allocation of public places plays an extremely important role in the daily lives of inhabitants especially for recreational use that could enhance the quality of life of residents in the vicinity. To understand park users’ behavior is one of the most important prerequisites for as-sessing the participation in public service from the park users’ point of view. The pattern of park utilization on location and activity selection are important elements in behavioral study, while the public parks topograph may also influence the typical user’s be-havior. Questionnaire survey on park utilization was used to investigate the interaction between activity involvement and recrea-tional location with the use of linear discriminant analysis (LDA) model. The study found that public park users’ behavior is influenced not only by social characteristics but also by the recreational activities and their specific location characteristics. We found that about 45 percent of park visitors are local residents living within a radius of 3 km preferred travel to parks near their residential area. This implies that location selection behavior is correlated with travel distance, travel time and travel cost. Visit frequencies and on site expenditures reflect the recreation behavior for different type of activities. The overall information can be usefully applied by decision makers to launch appropriate public policy in consistence with the useful results of this study.展开更多
In this study, the microbial quality of treated wastewater used for irrigation of three public parks in Dubai was evaluated. A total of 23 samples of TWW （treated wastewater） and 12 samples of irrigated soils from t...In this study, the microbial quality of treated wastewater used for irrigation of three public parks in Dubai was evaluated. A total of 23 samples of TWW （treated wastewater） and 12 samples of irrigated soils from three public parks were collected and tested for Legionella, Salmonella, traditional bacterial indicators, Cryptosporidium oocyst and Giardia cysts using membrane filtration and direct immune-fluorescence assay. The majority of the tested water samples were found contaminated with LLO （Legionella like organisms）, Salmonella and traditional bacterial indicators. Both Cryptosporidium oocysts and Giardia cysts were detected in these samples with a higher occurrence ofCryptosporidium oocysts （96%） than Giardia cysts （35%）. The fecal coliform bacteria were detected in 60.8% of water samples and 58% of soil samples. Total coliform bacteria were detected in most of the water and soil samples with a higher occurrence than the fecal coliform bacteria. The results of this study indicate that microorganisms are surviving the chlorination method used for disinfecting wastewater, and are further multiplying in the public parks irrigation network system. Therefore, monitoring the treated wastewater for bacterial pathogens, protozoan parasites and controlling their growth at the point of end use are vital to reducing the risk of environmental contamination with microbial pathogens.展开更多
Climate change is the first real challenge of this global generation,and,so far,it hasn’t gone that well.Whether it’s rising sea levels threatening cities like Shanghai or expanding vectors of malaria,China must cha...Climate change is the first real challenge of this global generation,and,so far,it hasn’t gone that well.Whether it’s rising sea levels threatening cities like Shanghai or expanding vectors of malaria,China must change with the climate.As the glaciers of China’s Third Pole retreat,as new and more regular floods attack first-tier cities and rural towns alike,as wheat yields decrease in the north and entire lakes dry up in the west,the days of ignoring climate change have展开更多
Green infrastructure is classic public goods which can be utilized by everybody simultaneously atany time of the day. Green infrastructure which is the interconnected system of green spaces that conservesnatural ecosy...Green infrastructure is classic public goods which can be utilized by everybody simultaneously atany time of the day. Green infrastructure which is the interconnected system of green spaces that conservesnatural ecosystem values and functions, sustains clean air and water, not only provide a pleasant and naturalenvironment but also contribute to improving quality of life in urban areas. In other words green infrastructureis the communitys natural life support system and the ecological framework needed for environmental andeconomic sustainability in urban areas. Within this context, this paper offers an overview of green infrastructuredevelopment in Malaysia, its status, constraint, potential and future directions. The case study of KualaLumpur city, which is one of the fastest growing cities in the country, highlights the scenario of urban areasdevelopment in Malaysia. This includes the role played by the government agencies and non-governmentorganizations in developing and promoting forest areas as public parks. The provisions of recreational andeducational facilities in the parks as well as the protection measures of the resources undertaken by relevantauthorities are also discussed. This paper also highlights the response of the public to the opportunities beingprovided in these areas for recreation and education purposes.展开更多
文摘Public parks provide many benefits to the community as the representatives of green area. The allocation of public places plays an extremely important role in the daily lives of inhabitants especially for recreational use that could enhance the quality of life of residents in the vicinity. To understand park users’ behavior is one of the most important prerequisites for as-sessing the participation in public service from the park users’ point of view. The pattern of park utilization on location and activity selection are important elements in behavioral study, while the public parks topograph may also influence the typical user’s be-havior. Questionnaire survey on park utilization was used to investigate the interaction between activity involvement and recrea-tional location with the use of linear discriminant analysis (LDA) model. The study found that public park users’ behavior is influenced not only by social characteristics but also by the recreational activities and their specific location characteristics. We found that about 45 percent of park visitors are local residents living within a radius of 3 km preferred travel to parks near their residential area. This implies that location selection behavior is correlated with travel distance, travel time and travel cost. Visit frequencies and on site expenditures reflect the recreation behavior for different type of activities. The overall information can be usefully applied by decision makers to launch appropriate public policy in consistence with the useful results of this study.
文摘In this study, the microbial quality of treated wastewater used for irrigation of three public parks in Dubai was evaluated. A total of 23 samples of TWW （treated wastewater） and 12 samples of irrigated soils from three public parks were collected and tested for Legionella, Salmonella, traditional bacterial indicators, Cryptosporidium oocyst and Giardia cysts using membrane filtration and direct immune-fluorescence assay. The majority of the tested water samples were found contaminated with LLO （Legionella like organisms）, Salmonella and traditional bacterial indicators. Both Cryptosporidium oocysts and Giardia cysts were detected in these samples with a higher occurrence ofCryptosporidium oocysts （96%） than Giardia cysts （35%）. The fecal coliform bacteria were detected in 60.8% of water samples and 58% of soil samples. Total coliform bacteria were detected in most of the water and soil samples with a higher occurrence than the fecal coliform bacteria. The results of this study indicate that microorganisms are surviving the chlorination method used for disinfecting wastewater, and are further multiplying in the public parks irrigation network system. Therefore, monitoring the treated wastewater for bacterial pathogens, protozoan parasites and controlling their growth at the point of end use are vital to reducing the risk of environmental contamination with microbial pathogens.
文摘Climate change is the first real challenge of this global generation,and,so far,it hasn’t gone that well.Whether it’s rising sea levels threatening cities like Shanghai or expanding vectors of malaria,China must change with the climate.As the glaciers of China’s Third Pole retreat,as new and more regular floods attack first-tier cities and rural towns alike,as wheat yields decrease in the north and entire lakes dry up in the west,the days of ignoring climate change have
文摘Green infrastructure is classic public goods which can be utilized by everybody simultaneously atany time of the day. Green infrastructure which is the interconnected system of green spaces that conservesnatural ecosystem values and functions, sustains clean air and water, not only provide a pleasant and naturalenvironment but also contribute to improving quality of life in urban areas. In other words green infrastructureis the communitys natural life support system and the ecological framework needed for environmental andeconomic sustainability in urban areas. Within this context, this paper offers an overview of green infrastructuredevelopment in Malaysia, its status, constraint, potential and future directions. The case study of KualaLumpur city, which is one of the fastest growing cities in the country, highlights the scenario of urban areasdevelopment in Malaysia. This includes the role played by the government agencies and non-governmentorganizations in developing and promoting forest areas as public parks. The provisions of recreational andeducational facilities in the parks as well as the protection measures of the resources undertaken by relevantauthorities are also discussed. This paper also highlights the response of the public to the opportunities beingprovided in these areas for recreation and education purposes.
