ANY country with an international airport is at risk of Ebola virus infection. Thisis the somber warning from the World Health Organization （WHO） in the wake of the deadly epidemic that now has the world on the edge...ANY country with an international airport is at risk of Ebola virus infection. Thisis the somber warning from the World Health Organization （WHO） in the wake of the deadly epidemic that now has the world on the edge of its collec- tive seat. With the widespread infection of Ebola virus reported in West Africa, interna- tional cooperation has become essential to prevent the expansion of this terrible disease. The WHO has declared the outbreak to be ＂a public health emergency of international concern＂ and recommended that countries take measures to prevent the spread of the virus, most notably by strengthening surveillance at airports,issuing travel advisories and raising awareness about the disease and its preven- tion.展开更多
China has recently established a new policy for the energy use of the Arctic region.Even though it is not a part of the Arctic Council,China has started a series of partnerships with public and private entities of cou...China has recently established a new policy for the energy use of the Arctic region.Even though it is not a part of the Arctic Council,China has started a series of partnerships with public and private entities of countries that are geographically and politically members of the Arctic polar Circle.The project has to be carried out within the“Belt and Road Initiative”,by establishing new trade routes between China and the rest of the world.The study aims at assessing the fuel consumption for the Arctic shipping routes and comparing them to the traditional ones,in terms of cost reduction and time efficiency.Moreover,a brief consideration on oil&gas arctic fields has been carried out,in order to understand how the energy policy of China is changing the resource utilization.展开更多
This paper attempts to establish a framework of upgrading mechanism in China's foreign economic opening strate莒y in order to conclude the new connotation of upgrade for China's foreign economic opening,with t...This paper attempts to establish a framework of upgrading mechanism in China's foreign economic opening strate莒y in order to conclude the new connotation of upgrade for China's foreign economic opening,with the basic starting point of ternary marginal extension on extensive growth,in the perspective of corporate heterogeneity theory.It also involves the new path of the transformation from"quantity1'to"quality"regarding the amounts,models and locations of China's foreign trade and investment.At last,this theoretical frame is complemented upon a case study of free trade zone and regional cooperation of Guangdong,Hong Kong and Macao.展开更多
研究以渤海湾为生态系统服务需求区,以渤海湾滨海地区为生态系统服务供给区,从生态系统服务供需的视角,以水资源、水环境、水生态为问题与目标维度构建了渤海湾滨海地区生态安全屏障功能评价体系。根据渤海湾生态问题,截污净化、产水量...研究以渤海湾为生态系统服务需求区,以渤海湾滨海地区为生态系统服务供给区,从生态系统服务供需的视角,以水资源、水环境、水生态为问题与目标维度构建了渤海湾滨海地区生态安全屏障功能评价体系。根据渤海湾生态问题,截污净化、产水量和生境质量3类指标被筛选为生态安全屏障功能的关键指标,并分别使用生态系统服务和权衡的综合评估模型(Integrated Valuation of Ecosystem Services and Trade-offs,InVEST)模型中的营养物迁移模型、产水量模型和生境质量模型进行评价。此外,对2000—2020年渤海湾滨海地区土地利用格局和截污净化、产水量、生境质量3类生态安全屏障功能指标的时空变化进行评价,并分析了生态安全屏障功能时空演变的驱动因素。研究的主要结果如下:(1)在20 a间渤海湾滨海地区,耕地、未利用地面积减少而建设用地和湿地面积增加,氮磷截留率和产水量增加,但生境质量下降。(2)渤海湾滨海地区综合生态安全屏障功能供给良好,但近年来呈下降趋势。(3)人类活动引起的土地利用变化是影响渤海湾滨海地区生态安全屏障功能时空演变的主要驱动力。研究对渤海湾滨海地区生态安全屏障功能评价方法及结果不仅可指导本区域生态建设,同时对其他区域的生态安全屏障功能评价具有借鉴意义。展开更多
文摘ANY country with an international airport is at risk of Ebola virus infection. Thisis the somber warning from the World Health Organization （WHO） in the wake of the deadly epidemic that now has the world on the edge of its collec- tive seat. With the widespread infection of Ebola virus reported in West Africa, interna- tional cooperation has become essential to prevent the expansion of this terrible disease. The WHO has declared the outbreak to be ＂a public health emergency of international concern＂ and recommended that countries take measures to prevent the spread of the virus, most notably by strengthening surveillance at airports,issuing travel advisories and raising awareness about the disease and its preven- tion.
文摘China has recently established a new policy for the energy use of the Arctic region.Even though it is not a part of the Arctic Council,China has started a series of partnerships with public and private entities of countries that are geographically and politically members of the Arctic polar Circle.The project has to be carried out within the“Belt and Road Initiative”,by establishing new trade routes between China and the rest of the world.The study aims at assessing the fuel consumption for the Arctic shipping routes and comparing them to the traditional ones,in terms of cost reduction and time efficiency.Moreover,a brief consideration on oil&gas arctic fields has been carried out,in order to understand how the energy policy of China is changing the resource utilization.
文摘This paper attempts to establish a framework of upgrading mechanism in China's foreign economic opening strate莒y in order to conclude the new connotation of upgrade for China's foreign economic opening,with the basic starting point of ternary marginal extension on extensive growth,in the perspective of corporate heterogeneity theory.It also involves the new path of the transformation from"quantity1'to"quality"regarding the amounts,models and locations of China's foreign trade and investment.At last,this theoretical frame is complemented upon a case study of free trade zone and regional cooperation of Guangdong,Hong Kong and Macao.
文摘研究以渤海湾为生态系统服务需求区,以渤海湾滨海地区为生态系统服务供给区,从生态系统服务供需的视角,以水资源、水环境、水生态为问题与目标维度构建了渤海湾滨海地区生态安全屏障功能评价体系。根据渤海湾生态问题,截污净化、产水量和生境质量3类指标被筛选为生态安全屏障功能的关键指标,并分别使用生态系统服务和权衡的综合评估模型(Integrated Valuation of Ecosystem Services and Trade-offs,InVEST)模型中的营养物迁移模型、产水量模型和生境质量模型进行评价。此外,对2000—2020年渤海湾滨海地区土地利用格局和截污净化、产水量、生境质量3类生态安全屏障功能指标的时空变化进行评价,并分析了生态安全屏障功能时空演变的驱动因素。研究的主要结果如下:(1)在20 a间渤海湾滨海地区,耕地、未利用地面积减少而建设用地和湿地面积增加,氮磷截留率和产水量增加,但生境质量下降。(2)渤海湾滨海地区综合生态安全屏障功能供给良好,但近年来呈下降趋势。(3)人类活动引起的土地利用变化是影响渤海湾滨海地区生态安全屏障功能时空演变的主要驱动力。研究对渤海湾滨海地区生态安全屏障功能评价方法及结果不仅可指导本区域生态建设,同时对其他区域的生态安全屏障功能评价具有借鉴意义。
