Geography and Environmental Planning
Year:2011 | Volume:22 | Issue:2 (42)|Papers Count:17

Introduction: The study area is a part of Parsian alluvial fan system in the northern slope of Keyamaki mount. The existence of Tufa deposits in distal part of Parsian alluvial fan, the relations of these deposits with other parts of system, tufagenic system and declining of Tufa deposition are the most important issues that are considered in this study.

Introduction: In southern coast of Caspian Sea the precipitation, as the most important climatic phenomenon, shows a complex temporal and spatial distribution. Such a complexity is due to the settlement of this area between the largest lake of the world in the north and a high mountain range in its south. The climate complexity is resulted when we add the successive eastward movement of westerly waves over the area throughout the year. Therefore, a unique climatic region is appeared in the southern coast of Caspian Sea due to Land-Sea-Atmosphere interactions in a variety of scales. In fact, this area is one of the unique locations in the world which migrating anticyclones can cause heavy precipitation with amount more than 200 -250 mm per day due to the shape, size and the location of the Caspian Sea (Mofidi et al.2008).

Introduction: From urban economics view point, factors like expansion of municipalities' activities scope, promotion of expectance and urban population increase problems that enhance needs to expansion of municipalities' income and financial resources. So, lack of continuous income resource minimum for meeting permanent costs- endanger municipalities financial and budget planning. By this trend current income resources do not meet ever increasing costs.

Introduction: Most forms of external nature and earth processes are primarily a function of climatic conditions prevailing during the time zone. Climatic evidences are important reasons glacial of fourth time in the region. This evidence can be helpful to reconstruct to prove past landscape of the region. Therefore, evidences of climatic changes of fourth period that one of the most important of them is remained the glacier could keep geomorphology phenomena in the Earth's crust. According to these evidences, past climatic conditions can be reconstructed. In this study have been investigated effects of glacier area in Mahan basin. Study area called the Tigrani river basin in Mahan.

Introduction: Drought and flood are events that humans are horrified about them and try to manage them. Today flood management by un-instrument management is considered and the first step for decreasing flood risk is watershed management in up-basins areas. Defining critical sub-basins by grouping in similar group in point of flood intensity and like geomorphologic variable is a useful method for flood management. In this way clustering method is used for identifying homogeneous hydrological basins.

Introduction: In recent decades, industrialization and urbanization, increasing of income level and social welfare and also increasing the transportation facilities have been caused that the inhabitants of urban areas or even ural areas travel to beautiful and nice places at leisure times. One of the beautiful and attractive places is river sides, oceans, seas and lakes which are called as seashore tourism place. The rapid growth of seashore tourisms in recent decades caused that this section be known as the most rapid section of ecotourism places.

Introduction: Increasing number of tourists lead to develop business and rise of revenues of companies and institutions which work in this field. Expansion of tourism particularly in less developed countries is an effective factor to encounter poverty and bring about increasing income of various social stratums, decreasing unemployment and economic and social prosperity. This article aims to know the level of feeling social security and interactions of people with foreign tourists. Results show positive and direct correlation between feeling social security and tourism. In another words feeling more social security, tourists compatibly would like to remain in Iran more or visit it again. In a comparison African tourist feel highest level of social security while Europeans feel lowest level of it. Result of chi square test (chisquare= 14/557) in the significant level (0/086) indicates that there is no significant difference among all of foreign tourists.

Introduction: Bayazeh hamlet is located in Isfahan province (55 - 55 15 Log and 33 - 33 30 Lat) and 459 km away from Isfahan city. This village constructed on the yellow sediments that distinguish the village color from surrounding areas. The published report in 11th international congress of soil science (Ghayomi, 1388) denoted the loose origin for yellow sediments. At the same time in University of Isfahan, Gorji (1387) was studying the gully of Bayazeh and origin of yellow sedimentary spots in this area which indicated the different results with Ghayomi (1388). Whereas origin of these sediments could be affecting on analysis of climate changes, so research proposal was approved to seek origin of yellow sedimentary spots of Bayazeh.

Introduction: What we know today as elderliness or agedness is not a recent product; it means that in the past the definition of elderliness was not based absolutely on age, but factors such as deformation of outward appearance and physical abilities which do not necessitate a particular age were considered as criteria for elderliness; but there is a specific definition for elderliness today, “An age in which many people are retired from working and benefit from various welfare benefits such as retirement pensions” (Giddens, 1376: 653).

Introduction: Determination of water quality is important because of it helps to protect, restore the quality of the ground-waters, and management of groundwater that consistent with the requirements of the clean water. Schouller diagram is one of the best methods for groundwater quality zoning. The most important stage of groundwater quality zoning in this method is investigation of the best interpolation method. In these regards, Geographic Information System (GIS) provides an effective tool to generate, manipulate, and organize the spatially disparate data for modeling and groundwater quality zoning. The produced graphical image using GIS will provide for user an easier visual inspection of the water quality conditions.

Introduction: Due to high costs for building new services such as public parking, determining of their proper place, So that all citizens benefit from them, is so important. Due to the increasing population and development of non – principal cities and uncontrolled increase in vehicle in recent years, and on the other hand, Narrow Street specially in central areas are reasons of increasing the volume of vehicles travelling and prolonged period of urban travel. By considering the above issues, The necessity of finding the proper parking place is more evident. Finding the proper parking place reduce trips within the city. If that is associated with reduction or no marginal park, that is reason of increasing the width of streets and traffic flow of vehicles on the street.

Introduction: The temperature is the most important climate of parameters.a more factors causes to tempo – spatial the temperaturecomplex.its Based on the maps of thetemperatureof existence, the Northwest and the south in Iran are to disciplinethe coldest and the warmestof areas.also the mountain of regions are more cold than low ones. Buttemperature trend is ascendedin all of the stations.this research studies the lowest temperature data in Iran the period of statistical duration (1956- 2005). The research goal is spread and intense the lowest of temperature in difference areas in Iran by ways of the temperature time series, isotherm plots and temperature distribution plots.