By using the global atmospheric general circulation model CAM4.0 including an urban canopy parameterization scheme,the possible impacts of large-scale urbanization in East China on East Asian winter monsoon was invest...By using the global atmospheric general circulation model CAM4.0 including an urban canopy parameterization scheme,the possible impacts of large-scale urbanization in East China on East Asian winter monsoon was investigated via idealized numerical experiments.Results suggest that large-scale urbanization can cause a significant warming effect in both surface temperature and air temperature near the surface over most areas of East China.Meanwhile,large-scale urbanization also alters the surface energy balance,causing evident increases in net surface long-wave radiation and sensible heat flux as well as intensified surface thermal heating to the atmosphere.Forced by the surface thermal heating anomalies induced by the large-scale urban expansion,East Asian winter monsoon circulation exhibits distinct changes.Overall,the extensive urbanization over East China will weaken East Asian winter monsoon,but intensify winter monsoon in northeast China.展开更多
This article analyzes the impact of urbanization on village democracy in China. The ＂economic absorption and social exclusion＂ of semiurbanization path has attracted rural residents to cities. These people participa...This article analyzes the impact of urbanization on village democracy in China. The ＂economic absorption and social exclusion＂ of semiurbanization path has attracted rural residents to cities. These people participate in the urban economy just as a factor of production （labor） without enjoying the rights that urban citizens（xfiUagers） have. This urbanization path and population mobility has had a profound influence on rural democracy in China. On the one hand, large numbers of young people have left; the traditional villages in central and western China, which are characterized by population output（ many even move with their entire families）, causing the villages to lose their political elite while the interaction chain between villagers has been shortened and social trust in the villages has been weakened, thereby giving rise to a low quality of rural democracy. On the other hand, large numbers of migrant workers have flocked into the urbanized villages in eastern China, which are characterized by population input, and these people far outnumber local residents. Migrant workers are excluded from rural democracy and the governance structure. This local citizenship based on the household registration system restricts the inclusiveness of village democracy.展开更多
基金supported by the National Basic Research Program of China(2010CB428505 and 2011CB952004)Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institu-tions(PAPD)
文摘By using the global atmospheric general circulation model CAM4.0 including an urban canopy parameterization scheme,the possible impacts of large-scale urbanization in East China on East Asian winter monsoon was investigated via idealized numerical experiments.Results suggest that large-scale urbanization can cause a significant warming effect in both surface temperature and air temperature near the surface over most areas of East China.Meanwhile,large-scale urbanization also alters the surface energy balance,causing evident increases in net surface long-wave radiation and sensible heat flux as well as intensified surface thermal heating to the atmosphere.Forced by the surface thermal heating anomalies induced by the large-scale urban expansion,East Asian winter monsoon circulation exhibits distinct changes.Overall,the extensive urbanization over East China will weaken East Asian winter monsoon,but intensify winter monsoon in northeast China.
文摘This article analyzes the impact of urbanization on village democracy in China. The ＂economic absorption and social exclusion＂ of semiurbanization path has attracted rural residents to cities. These people participate in the urban economy just as a factor of production （labor） without enjoying the rights that urban citizens（xfiUagers） have. This urbanization path and population mobility has had a profound influence on rural democracy in China. On the one hand, large numbers of young people have left; the traditional villages in central and western China, which are characterized by population output（ many even move with their entire families）, causing the villages to lose their political elite while the interaction chain between villagers has been shortened and social trust in the villages has been weakened, thereby giving rise to a low quality of rural democracy. On the other hand, large numbers of migrant workers have flocked into the urbanized villages in eastern China, which are characterized by population input, and these people far outnumber local residents. Migrant workers are excluded from rural democracy and the governance structure. This local citizenship based on the household registration system restricts the inclusiveness of village democracy.
