Weekly phytoplankton samples were taken from western Hong Kong (Lamma) from Jan. 1997 to Dec. 1999 and from Port Shelter in Eastern Hong Kong from January 1998 to December 1999. During that time diatom blooms occurred...Weekly phytoplankton samples were taken from western Hong Kong (Lamma) from Jan. 1997 to Dec. 1999 and from Port Shelter in Eastern Hong Kong from January 1998 to December 1999. During that time diatom blooms occurred repeatedly at both sites but never in synchrony. One species would bloom at one site and then weeks later it or another species would bloom at the other site; while the 1998 red tide of the mucus producing dinoflagellate Gymnodinium mikimotoi occurred at both sites. It first occurred at the Port Shelter site in March and did not appear at the Lamma site until April. With the single exception of this species, no other dinoflagellate reached bloom concentrations at the Lamma site. In addition, dinoflagellate abundance at the Lamma site was significantly lower (P <0.05) than that at the Port Shelter site. This was correlated with a significantly higher turbidity (i.e. low Secchi transparency) and higher turbulence (stronger currents) at the Lamma site. Annual variation in surface temperature correlated with total surface phytoplankton abundance at both our sample sites. Phytoplankton abundance increased in spring as water temperatures warmed. In fall, as surface water temperatures began to decline and the monsoon rains became less frequent there was a reduction in phytoplankton abundance associated with the reduction in temperature and light. Because so many variables co-occur with temperature (e.g. the amount of rainfall, light intensity and light duration etc.) it is not possible to cite temperature as the causal factor associated weth controlling phytoplankton abundance at our two sample sites. Our data support the rather controversial notion that percentage-wise, there are relatively more harmful bloom forming species in nutrient-rich coastal waters than there are in the world’s oceans. 16% of the dinoflagellate species and 10.3% of the diatom species observed at our two sample sites were classed as harmful. These percentages were higher than those cited by Sournia (1995) for the worlds oceans (9.6% and 6.8% respectively). This raises the possibility that there are relatively more toxic species in the nutrient-rich coastal waters of the world than there are in the mid ocean nutrient-poor areas of the world. Some reasons for this are briefly discussed.展开更多
This study examines the spatial and temporal forest cover changes in Swat and Shangla districts to understand the deforestation pattern in context of the recent security conflict in these districts. We used multi-reso...This study examines the spatial and temporal forest cover changes in Swat and Shangla districts to understand the deforestation pattern in context of the recent security conflict in these districts. We used multi-resolution satellite images to assess the long term deforestation from 2001 to 2009 and also to identify episodic forest cutting areas appeared during the conflict period of Oct. 2007 - Oct. 2008. There are only 58 ha of deforestation identified during the conflict period while 1268 ha of gross annual deforestation were assessed during last eight years. Most of the deforestation patches persist around the administrative boundaries at sub-district levels (tehsils) which can be attributed to ambiguity in unclear jurisdiction between the forest official. The results highlight that the forest cutting appeared in Swat and Shangla during the conflict period is not as significant when compared with the long term deforestation pattern in the area. On the one side the results of the study are supportive to the picture that emerges from international studies which report high rate of deforestation in the country and on the other side it negates any relation between the security situation and the increasing deforestation in the north western Pakistan. The study concludes that deforestation assessments require verification by independent sources of data, such as satellite imagery to improve our understanding of deforestation processes.展开更多
Hong Kong has undergone substantial economic transformations and developed into a sophisticated busi- ness and financial center in the Asia-Pacific region, since the return of sovereignty to China as a Special Adminis...Hong Kong has undergone substantial economic transformations and developed into a sophisticated busi- ness and financial center in the Asia-Pacific region, since the return of sovereignty to China as a Special Administrative Region under the One Country Two Systems （OCTS） in 1997. This paper discusses and analyzes the industrial struc- tural changes of Hong Kong in recent decades as well as its future challenges and opportunities, The data and finding reveal that even though Hong Kong will face fierce competition from the Mainland＇s cities as the rise of China, the important role as a bridge between China and the rest of the world wilt brace Hong Kong itself under the OCTS for developing into a service hub for business and trade in the Asia-Pacific region.展开更多
Food, cooking, and food-making places play a primordial role in the formation of cultural identity and community building. Using the example of Macanese food in Macao Special Administrative Region, this article discus...Food, cooking, and food-making places play a primordial role in the formation of cultural identity and community building. Using the example of Macanese food in Macao Special Administrative Region, this article discusses the transformation of Macanese food from everyday home food to the current status of cuisine in present-day Macanese society through the analysis of the perception of consumers and producers of Macanese food. The findings demonstrate the friction between Macanese food crafted by Macanese as part of an emergent ＂authentic＂ marker of Macanese identity and the commercial branding of Macanese food for tourist purposes.展开更多
Leung Chun-ying（fifth right）,Chief Executive of Hong Kong Special Administrative Region,and Hong Kong Exchanges and Clearing Chairman Chow Chung-kong（fourth left）jointly beat a gong to mark the inauguration of the...Leung Chun-ying（fifth right）,Chief Executive of Hong Kong Special Administrative Region,and Hong Kong Exchanges and Clearing Chairman Chow Chung-kong（fourth left）jointly beat a gong to mark the inauguration of the Shenzhen-Hong Kong Stock Connect in Hong Kong on December 5. Under the new scheme, mainland investors can trade shares on the stock exchange of Hong Kong through local brokers, and Hong Kong investors can buy and sell stocks on the tech-heavy Shenzhen bourse. The arrangement is the second link between mainland and Hong Kong capital markets, after the Shanghai-Hong Kong Stock Connect was launched in 2014.展开更多
文摘Weekly phytoplankton samples were taken from western Hong Kong (Lamma) from Jan. 1997 to Dec. 1999 and from Port Shelter in Eastern Hong Kong from January 1998 to December 1999. During that time diatom blooms occurred repeatedly at both sites but never in synchrony. One species would bloom at one site and then weeks later it or another species would bloom at the other site; while the 1998 red tide of the mucus producing dinoflagellate Gymnodinium mikimotoi occurred at both sites. It first occurred at the Port Shelter site in March and did not appear at the Lamma site until April. With the single exception of this species, no other dinoflagellate reached bloom concentrations at the Lamma site. In addition, dinoflagellate abundance at the Lamma site was significantly lower (P <0.05) than that at the Port Shelter site. This was correlated with a significantly higher turbidity (i.e. low Secchi transparency) and higher turbulence (stronger currents) at the Lamma site. Annual variation in surface temperature correlated with total surface phytoplankton abundance at both our sample sites. Phytoplankton abundance increased in spring as water temperatures warmed. In fall, as surface water temperatures began to decline and the monsoon rains became less frequent there was a reduction in phytoplankton abundance associated with the reduction in temperature and light. Because so many variables co-occur with temperature (e.g. the amount of rainfall, light intensity and light duration etc.) it is not possible to cite temperature as the causal factor associated weth controlling phytoplankton abundance at our two sample sites. Our data support the rather controversial notion that percentage-wise, there are relatively more harmful bloom forming species in nutrient-rich coastal waters than there are in the world’s oceans. 16% of the dinoflagellate species and 10.3% of the diatom species observed at our two sample sites were classed as harmful. These percentages were higher than those cited by Sournia (1995) for the worlds oceans (9.6% and 6.8% respectively). This raises the possibility that there are relatively more toxic species in the nutrient-rich coastal waters of the world than there are in the mid ocean nutrient-poor areas of the world. Some reasons for this are briefly discussed.
基金the financial assistance by the United Nations Development Programme (UNDP) - Pakistan through the Pakistan Wetlands Programme
文摘This study examines the spatial and temporal forest cover changes in Swat and Shangla districts to understand the deforestation pattern in context of the recent security conflict in these districts. We used multi-resolution satellite images to assess the long term deforestation from 2001 to 2009 and also to identify episodic forest cutting areas appeared during the conflict period of Oct. 2007 - Oct. 2008. There are only 58 ha of deforestation identified during the conflict period while 1268 ha of gross annual deforestation were assessed during last eight years. Most of the deforestation patches persist around the administrative boundaries at sub-district levels (tehsils) which can be attributed to ambiguity in unclear jurisdiction between the forest official. The results highlight that the forest cutting appeared in Swat and Shangla during the conflict period is not as significant when compared with the long term deforestation pattern in the area. On the one side the results of the study are supportive to the picture that emerges from international studies which report high rate of deforestation in the country and on the other side it negates any relation between the security situation and the increasing deforestation in the north western Pakistan. The study concludes that deforestation assessments require verification by independent sources of data, such as satellite imagery to improve our understanding of deforestation processes.
基金Under the auspices of Hui Oi Chow Trust Fund(No.200902172004)Mrs.Li Ka Shing Fund,Strategic Research Theme on Contemporary China,Seed Funding Programme for Basic Research(No.200911159173)Seed Funding Programme for Applied Research(No.201102160031)
文摘Hong Kong has undergone substantial economic transformations and developed into a sophisticated busi- ness and financial center in the Asia-Pacific region, since the return of sovereignty to China as a Special Administrative Region under the One Country Two Systems （OCTS） in 1997. This paper discusses and analyzes the industrial struc- tural changes of Hong Kong in recent decades as well as its future challenges and opportunities, The data and finding reveal that even though Hong Kong will face fierce competition from the Mainland＇s cities as the rise of China, the important role as a bridge between China and the rest of the world wilt brace Hong Kong itself under the OCTS for developing into a service hub for business and trade in the Asia-Pacific region.
文摘Food, cooking, and food-making places play a primordial role in the formation of cultural identity and community building. Using the example of Macanese food in Macao Special Administrative Region, this article discusses the transformation of Macanese food from everyday home food to the current status of cuisine in present-day Macanese society through the analysis of the perception of consumers and producers of Macanese food. The findings demonstrate the friction between Macanese food crafted by Macanese as part of an emergent ＂authentic＂ marker of Macanese identity and the commercial branding of Macanese food for tourist purposes.
文摘Leung Chun-ying（fifth right）,Chief Executive of Hong Kong Special Administrative Region,and Hong Kong Exchanges and Clearing Chairman Chow Chung-kong（fourth left）jointly beat a gong to mark the inauguration of the Shenzhen-Hong Kong Stock Connect in Hong Kong on December 5. Under the new scheme, mainland investors can trade shares on the stock exchange of Hong Kong through local brokers, and Hong Kong investors can buy and sell stocks on the tech-heavy Shenzhen bourse. The arrangement is the second link between mainland and Hong Kong capital markets, after the Shanghai-Hong Kong Stock Connect was launched in 2014.
