Bahman Ramezani; Mohammad Taleghani
Volume 21, SEPEHR , February 2013, , Pages 90-94
Abstract
All over the world, coastal areas have always been exploited more than any other area because of their rich resources. Coastal areas are among the most dynamic and productive areas of the world and a context for immerse economic and social activities. On the other hand, population growth and development ...
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All over the world, coastal areas have always been exploited more than any other area because of their rich resources. Coastal areas are among the most dynamic and productive areas of the world and a context for immerse economic and social activities. On the other hand, population growth and development of activities put a lot of pressure on these areas and now coasts face different pollutions and destructions. Iranian coasts are no exception and especially northern coasts have faced different pollutions and land use development much more than their tolerance and strength during last years. Therefore, efforts to correct the dominant procedures and situations began. With the enactment of the fourth development plan (act 63) and its regulation and considering executive mechanisms and executive organization responsibilities, it is possible to organize some of current problems in coasts, and especially northern coasts. This organization must be based on researches and planning in the context of integrative environmental management. Accordingly, the present article briefly address some issues and problems and finally some suggestions are provided.
Bahman Ramezani; Ali Ba'dollahi
Volume 11, Issue 41 , May 2002, , Pages 46-50
Abstract
The distribution of precipitation on the surface of a basin is influenced by various processes. Part of the water penetrates into ground and joins ground waters or flows out of the basin in the form of sub-surface flows. Another part is consumed by transpiration, evaporation, interception and depression ...
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The distribution of precipitation on the surface of a basin is influenced by various processes. Part of the water penetrates into ground and joins ground waters or flows out of the basin in the form of sub-surface flows. Another part is consumed by transpiration, evaporation, interception and depression storage. The combination of these facts act as blocking factors and prevents precipitation from running off the basin totally.
Part of precipitation that is neither evaporated nor absorbed by plants or penetrated into the soil flows out on the sloping surfaces of the waterways of basin. This water is called runoff.
There are many factors that affect the amount of runoff in an area. Some of these factors are due to the characteristics of the basin itself, such as basin physiography, geology, vegetation, soil condition, etc. other factors intensify runoff through the interference of human activities in the natural environment of the region and disturbing the natural environment balance, and so cause irreparable losses in the region. In this paper, we have tried to evaluate the factors affecting the runoff of a basin by investigating precipitation and runoff in the basin of Masouleh.
Bahman Ramezani
Volume 8, Issue 32 , February 1999, , Pages 11-16
Abstract
Shortage of water resources and climatic limitations of the period of plants’ growth, excessive precipitation and lack of enough precipitation lead to drought or, in other words, decrease of agricultural products. This topic is considered from different points of view by experts of different fields, ...
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Shortage of water resources and climatic limitations of the period of plants’ growth, excessive precipitation and lack of enough precipitation lead to drought or, in other words, decrease of agricultural products. This topic is considered from different points of view by experts of different fields, but in general it is considered as a natural phenomenon with many effects on the environment.According to a study of the temperature-precipitation trend over a certain statistical period at twelve stations, impact of drought is gradually appearing, and alleviating measures cannot be a real cure for this climatic factor. Evidences show that the length of the active thermal period of crops’ growth, extra precipitation and temperature variations in the region are gradually undergoing significant changes, and, considering population increase and limitations of soil, they might bring about numerous environmental problems in future.The present study is a part of a research plan, still in the process of edition, which analyses the trend of change of above factors using mini-tab software and predictive maps of probabilities with different periods. The aim of this study is to identify the trends and to provide with a vision of future, so that due measurements for dealing with this issue (drought and its environmental effects) in a humid climate or area can be duly considered by local planners.
Bahman Ramezani
Volume 7, Issue 28 , February 1998, , Pages 24-27
Abstract
The aim of natural geographic or environmental studies is to achieve a basic knowledge of environment or land which is the context of all human activities and natural phenomena; these phenomena do not follow the same rules (Rahnama’ei, 1992). Consequently, the current state is the result of interactions ...
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The aim of natural geographic or environmental studies is to achieve a basic knowledge of environment or land which is the context of all human activities and natural phenomena; these phenomena do not follow the same rules (Rahnama’ei, 1992). Consequently, the current state is the result of interactions over years. Identification of new state in ideal temporal conditions is of extraordinary importance, because social environment is indeed the economic environment caused by nature, and geographic environment includes natural, social and economic environment. Since studies concerning rural development plans have concentrated on three natural, social and economic or spatial, demographic and occupational (employment) sections, the part concerning natural or spatial studies seems less prominent and does not receive emphasis, and this is a bitter experience which should not be repeated. This paper tries to present the importance of a part of rural developmental plans regarding natural geographic or environmental studies (physiography).
Abdalkarim Gharib; Ebrahim Amin Sobhani; Bahman Ramezani
Volume 4, Issue 14 , August 1995, , Pages 25-30
Abstract
Buzkhaneh Cave is approximately located in the geographical position of 30’’ 52 ‘ 48o of eastern longitude, 7’’ 11’ 37o of northern latitude and at an altitude of 2,500 m in the mountain ranges of Talesh in the northwest of Masouleh town, which neighbors the ...
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Buzkhaneh Cave is approximately located in the geographical position of 30’’ 52 ‘ 48o of eastern longitude, 7’’ 11’ 37o of northern latitude and at an altitude of 2,500 m in the mountain ranges of Talesh in the northwest of Masouleh town, which neighbors the mountain Dash Blaq on the north, Jalalabad on the northeast, Rokn Abad on the south, Buzkhaneh Daghi on the east and highlands on the west. This cave is known as Yakhkun in the local language, because they use cave’s ice to prepare drinking water (Buzkhaneh = ice house)
