earthquake has always endangered cities. this article mainly focuses on the question “whether seismic damages could be diminished through the presentation a preventive operational pattern dealing with physical and nonphysical features of civil defense”. tehran, the most populous metropolis among iranian cities is to the south of alborz mountain range, located on potentially dangerous fault- lin...

earthquake has always endangered cities. this article mainly focuses on the question “whether seismic damages could be diminished through the presentation a preventive operational pattern dealing with physical and nonphysical features of civil defense”. tehran, the most populous metropolis among iranian cities is to the south of alborz mountain range, located on potentially dangerous fault- lin...

Keywords: Urban heat island Land use patterns Landscape metrics Soil sealing NDVI Heat-stress risk Vulnerability Demographic change Climate change Berlin a b s t r a c t In western societies, the combined effects of climate warming, proceeding urbanization, and demographic change (e.g. population aging) increase the risk of city populations to be subjected to heat-related stress. To provide a s...

Urbanization replaces the extant natural resource base (e.g., forests, wetlands) with an infrastructure that is capable of supporting humans. One ecological consequence of urbanization is higher concentrations of nitrogen (N) and phosphorous (P) in streams, lakes, and estuaries. When received in excess, N and P are considered pollutants. Continuing urbanization will change the relative distribu...

Understanding the relationship between land use change and ecosystem service values (ESVs) is the key for improving ecosystem health and sustainability. This study estimated the spatial and temporal variations of ESVs at town scale in relation to land use change in the Loess Plateau which is characterized by its environmental vulnerability, then analyzed and discussed the relationship between E...

......................................................................................................................................... vi 1. Report and Project Overview...................................................................................................... 1 2. Introduction.............................................................................................................

Arid environment is a dry landscape or region that received an extremely low amount of precipitation. Arid areas are located where vegetation cover is sparse to almost nonexistent. Almost one third of earth land surface is arid or desert. Over desert areas, a number of land cover patterns can be observed. One example is given here for the Arabian Peninsula. The located area can be found in Fig....

The upper reaches of Minjiang River-valley, located on the eastern edge of Qinghai–Tibet Plain, is characterized by the complex distribution of hills and valleys. It is a typical and key mountainous region with apparent upland ecosystem vulnerability and sensitivity according to National Eco-environmental Renovating Scheme of china. In order to analyze eco-environmental vulnerability, remote se...