The construction of an ecological city has two founda- tional platforms: the small platform, namely urban district or simply called as "city ecosystem"; and the big platform, namely around city district in c...The construction of an ecological city has two founda- tional platforms: the small platform, namely urban district or simply called as "city ecosystem"; and the big platform, namely around city district in certain region scope or also referred to as "city-region ecosystem". The construction of an ecological city must be launched in the dual spatial criteria: in city (urban district) criterion—optimizing the city ecosystem; in city-region (city territory) criterion—optimizing the city-region ecosystem. Luoy-ang has the bright characteristic and the typical image within cities of China, and even in the world. The construction of an ecological city in dual spatial criteria—the city and the city-region—has the vital significance to urbanization advancement and sustainable development in Luoyang. In city-region criterion, the primary mission of Luoyang’s ecological city construction is to create a fine ecological environment platform in its city territory. In city criterion, the basic duty of Luoyang’s ecologic city construction is to enhance the ecological capacity and benefit of the central city.展开更多
Urban sprawl is driven by a myriad of factors, the predominant one of which is the development of residential land. Selecting part of Jinan City for a case study, we use the landscape metric of percent of landscape (P...Urban sprawl is driven by a myriad of factors, the predominant one of which is the development of residential land. Selecting part of Jinan City for a case study, we use the landscape metric of percent of landscape (PLAND) to capture residential land growth and density changes in 1989, 1996 and 2004 to illuminate the dynamic process of residential land development. The results indicate that the moving window method and the landscape metrics method are efficient ways to describe residential land density. The residential land showed the greatest change among the built-up land with 1995.68 ha from 1989 to 2004, which is mainly transformed from agriculture land and green space. The urban center area of study area is primarily covered with medium density residential land, and surrounded by high density residential land. The development pattern of residential land exhibited both fill-in (new growth occurs through infilling the free spaces within the developed area) and sprawl processes, influenced by a series of factors, such as urban development policy, conservation of springs, recreational and aesthetic amenities. The findings of the study will help to guide urban planning with a focus on the management and protection of the environment and resources.展开更多
Specific changes in land use can,and often do,occur when any social economic system moves from one form to another.When traditional societies transit from traditional land uses to philosophically determined land uses,...Specific changes in land use can,and often do,occur when any social economic system moves from one form to another.When traditional societies transit from traditional land uses to philosophically determined land uses,as in the case ofthe introduction of socialism or the transition from system ofplanned economy to a market system,suchchanges seem concentrated and perhaps exacerbated.Certainly,such circumstances provide the opportunity to see the process of social philosophy and its impact upon land use in a telescoped fashion.The discovery and explanation of these elements might provide some insight into basic human behavior, and its relationship to social control and how people organize space both with and without control. This paper presents the results of observations of changes in land useas they have occurred during the course of transitional economic development in Beijing, China for the past decade.It suggests three new generic categories that can be applied to any culture or society.展开更多
文摘The construction of an ecological city has two founda- tional platforms: the small platform, namely urban district or simply called as "city ecosystem"; and the big platform, namely around city district in certain region scope or also referred to as "city-region ecosystem". The construction of an ecological city must be launched in the dual spatial criteria: in city (urban district) criterion—optimizing the city ecosystem; in city-region (city territory) criterion—optimizing the city-region ecosystem. Luoy-ang has the bright characteristic and the typical image within cities of China, and even in the world. The construction of an ecological city in dual spatial criteria—the city and the city-region—has the vital significance to urbanization advancement and sustainable development in Luoyang. In city-region criterion, the primary mission of Luoyang’s ecological city construction is to create a fine ecological environment platform in its city territory. In city criterion, the basic duty of Luoyang’s ecologic city construction is to enhance the ecological capacity and benefit of the central city.
基金Under the auspices of National High Technology Research Development Program of China(No.2009AAA122005)National Natural Science Foundation of China(No.30700097,40701047)
文摘Urban sprawl is driven by a myriad of factors, the predominant one of which is the development of residential land. Selecting part of Jinan City for a case study, we use the landscape metric of percent of landscape (PLAND) to capture residential land growth and density changes in 1989, 1996 and 2004 to illuminate the dynamic process of residential land development. The results indicate that the moving window method and the landscape metrics method are efficient ways to describe residential land density. The residential land showed the greatest change among the built-up land with 1995.68 ha from 1989 to 2004, which is mainly transformed from agriculture land and green space. The urban center area of study area is primarily covered with medium density residential land, and surrounded by high density residential land. The development pattern of residential land exhibited both fill-in (new growth occurs through infilling the free spaces within the developed area) and sprawl processes, influenced by a series of factors, such as urban development policy, conservation of springs, recreational and aesthetic amenities. The findings of the study will help to guide urban planning with a focus on the management and protection of the environment and resources.
文摘Specific changes in land use can,and often do,occur when any social economic system moves from one form to another.When traditional societies transit from traditional land uses to philosophically determined land uses,as in the case ofthe introduction of socialism or the transition from system ofplanned economy to a market system,suchchanges seem concentrated and perhaps exacerbated.Certainly,such circumstances provide the opportunity to see the process of social philosophy and its impact upon land use in a telescoped fashion.The discovery and explanation of these elements might provide some insight into basic human behavior, and its relationship to social control and how people organize space both with and without control. This paper presents the results of observations of changes in land useas they have occurred during the course of transitional economic development in Beijing, China for the past decade.It suggests three new generic categories that can be applied to any culture or society.
