Reasonable ＂eco-city＂in the external between urban and rural areas should make a complete ecological cycle of the system, so that the internal energy efficiency and low pollution, resource use environmentally clean,...Reasonable ＂eco-city＂in the external between urban and rural areas should make a complete ecological cycle of the system, so that the internal energy efficiency and low pollution, resource use environmentally clean, quiet comfortable life of the people, as well as other elements of the organic： unity of urban greening. So, ＂Eco-City＂, ＂urban ecology＂ are two heterogeneous areas should be treated differently. However, in rural and urban dualistic situation, China advocated ＂ecological city＂ ignored the rural ecological balance, resulting in ＂eco-city＂development directly into＂ urban ecology＂ construction within the city along with the waste of resources, water pollution, serious problems of air pollution, noise pollution, the deep ＂eco-city＂ into representation＂ urban ecology＂, in the standard does not cover up the sound, making the generation between rural and urban＂ material Rift ,＂after all ,can not be filled.展开更多
In the network environment, changes of resources structure, information technology and users requirements of standards library cause series of problems such as unobvious effect of services, low efficiency of resource ...In the network environment, changes of resources structure, information technology and users requirements of standards library cause series of problems such as unobvious effect of services, low efficiency of resource utilization, poor innovation ability, etc. And we point out the problems and challenges faced by traditional standards library in the network environment. The standards library must redesign the organization structure and business process radically so that standards library could improve the service model, enhance the service quality and utilization rate of various document resources.展开更多
This paper illustrates the spatial variations in urban resource and environmental efficiency （REE） amongst 285 cities in China using a Data Envelopment Analysis （DEA） model, and examines the factors that have had ...This paper illustrates the spatial variations in urban resource and environmental efficiency （REE） amongst 285 cities in China using a Data Envelopment Analysis （DEA） model, and examines the factors that have had the greatest effect on this spatial pattern by regression models. The results gave an average urban REE of 0.6381, and an average pure technical efifciency （PTE） and scale efifciency （SE） of 0.6964 and 0.9225, respectively. The results support the existence of a U-shaped relationship between REE and income level, which means that an increase in urban GDP does not result in an equivalent increase in environmental efficiency. Economic growth affects REE in three ways： scale effects （population scale and urbanization rate）; composition effects; and spatial effects. Improvements in urban resource use and environmental efifciency depend upon both technological innovation and effective governance. Policies designed to achieve these improvements should therefore be implemented at al levels of government and local enterprise.展开更多
文摘Reasonable ＂eco-city＂in the external between urban and rural areas should make a complete ecological cycle of the system, so that the internal energy efficiency and low pollution, resource use environmentally clean, quiet comfortable life of the people, as well as other elements of the organic： unity of urban greening. So, ＂Eco-City＂, ＂urban ecology＂ are two heterogeneous areas should be treated differently. However, in rural and urban dualistic situation, China advocated ＂ecological city＂ ignored the rural ecological balance, resulting in ＂eco-city＂development directly into＂ urban ecology＂ construction within the city along with the waste of resources, water pollution, serious problems of air pollution, noise pollution, the deep ＂eco-city＂ into representation＂ urban ecology＂, in the standard does not cover up the sound, making the generation between rural and urban＂ material Rift ,＂after all ,can not be filled.
文摘In the network environment, changes of resources structure, information technology and users requirements of standards library cause series of problems such as unobvious effect of services, low efficiency of resource utilization, poor innovation ability, etc. And we point out the problems and challenges faced by traditional standards library in the network environment. The standards library must redesign the organization structure and business process radically so that standards library could improve the service model, enhance the service quality and utilization rate of various document resources.
基金National Natural Science Foundation of China(No.40971075)the Presidential Foundation of University of Chinese Academy of Sciences(No.2012)
文摘This paper illustrates the spatial variations in urban resource and environmental efficiency （REE） amongst 285 cities in China using a Data Envelopment Analysis （DEA） model, and examines the factors that have had the greatest effect on this spatial pattern by regression models. The results gave an average urban REE of 0.6381, and an average pure technical efifciency （PTE） and scale efifciency （SE） of 0.6964 and 0.9225, respectively. The results support the existence of a U-shaped relationship between REE and income level, which means that an increase in urban GDP does not result in an equivalent increase in environmental efficiency. Economic growth affects REE in three ways： scale effects （population scale and urbanization rate）; composition effects; and spatial effects. Improvements in urban resource use and environmental efifciency depend upon both technological innovation and effective governance. Policies designed to achieve these improvements should therefore be implemented at al levels of government and local enterprise.
