Urban planning construction land standard is the technical specification for scientifically allocating various types of urban land, and it basis drawing up revising overall scheme. Considering China’s current standard, many problems exist, such as gap in use control threshold, lack regional differences climate revision, failing to consider topographic factors. To resolve these problems, this st...

Considering characteristics of high river density, special underlying surface in plain river network region, and municipal drainage system function, river network drainage unit model is proposed, which is defined as a region surrounded by main river or embankment. Flood storage variety and control projects regulation of small rivers in each unit is simulated. With drainage catchment as an objec...

according to world statistics the highest percentage of tourists are belong to urban ecotourism and this percentage is increasing steadily. therefore, the urban ecotourism has very high potential in attracting of tourists as well as in producing of financial resources and job opportunities. many cities of iran including tehran are benefiting very diverse climatic conditions and so many places t...

This paper demonstrates the application and usage of current remote sensing techniques for estimating and depicting Urban Environmental Quality at detailed level from satellite images. Temperature data derived from Landsat ETM+, Vegetation Index derived from high resolution IKONOS multispectral images, digitized data of the city urban infrastructure and 3-D virtual reality models were integrate...

Urban expansion has significant effects on forest loss and fragmentation. Previous studies mostly focused on how the amount of developed land affected forest loss and fragmentation, but neglected the impacts of its spatial pattern. This paper examines the effects of both the amount and spatial pattern of urban expansion on forest loss and fragmentation. We conducted a comparison study in the si...

Cities often experience growth either physically, by population, or by a combination of both. Urban sprawl in recent times is a subject of popular debate between policy makers and environmentalists in context of the status of urban people and the state of the human ecology. With the high pace of social and economic development resulting growth of urban population, lack of infrastructure, conges...

Impervious surface area (ISA) has different surface characteristics from the natural land cover and has great influence on watershed hydrology. To assess the urbanization effects on streamflow regimes, the authors analyzed the U.S. Geological Survey (USGS) streamflow data of 16 small watersheds in the White River [Indiana (IN)] basin. Correlation between hydrologic metrics (flow distribution, d...