نتایج جستجو برای: Coastal

تعداد نتایج: 54494  

Journal: :پژوهش های جغرافیای انسانی 0
اسحاق جلالیان استادیار جغرافیا و برنامه ریزی شهری، دانشگاه پیام نور، ایران میرنجف موسوی دانشیار جغرافیا و برنامه ریزی شهری، دانشگاه ارومیه، ایران علی باقری کشکولی دانشجوی دکتری جغرافیا و برنامه ریزی شهری، دانشگاه اصفهان، ایران

extended abstractintroductiontoday, large number of world’s major cities is located in coastal environments these towns have and all important positions in the economic, cultural and social functions. coastal areas and the cities located in they are economically very important in terms of the environment, sensitive to many of factors influencing and physically, against a variety of natural haza...

Journal: :تحقیق در علوم شیلاتی 0
e.n lakmali w.g.a deshapriya k.g.a. ishara jayawardene r.m.p raviranga n.p ratnayake h.m.r premasiri

coastal zone of sri lanka is a key to sustainable development of the country. the erosion of country’s coastal zone has been identified as a long standing problem. therefore, coastal sediment dynamics around the country has to be identified to develop an appropriate coastal zone management plan. remote sensing and gis techniques can be used for quantitative and qualitative analyses of coastal p...

Journal: :international journal of environmental research 2014
c. shao y. guan c. chu r. shi m. ju

the “driving force - pressure - state - impact – response” modeling framework isadopted to consider the formation mechanisms of environmental risks and the requirements ofecological environment protection. moreover, a systematical index system and evaluation model forthe measurement of the coastal ecological security level is put forward in this paper to assess thestate of coastal ecological en...

Journal: :محیط شناسی 0
الهه کولایی استاد گروه مطالعات منطقه ای دانشگاه تهران مهدی شایسته دانشجوی دکتری علوم سیاسی واحد علوم و تحقیقات

introduction a considerable percentage of the world’s population is living in the coastal areas. thus, there are many different kinds of problems in these regions. because of the large amount of the people in these areas, their ecosystems are confronted with huge and serious problems. there are different types of arrangements for preventing destruction of ecosystems around the seas. unified man...

Journal: :محیط زیست طبیعی 0
مریم یعقوب زاده دانشجوی کارشناسی ارشد محیط زیست، دانشکدة منابع طبیعی، دانشگاه تهران افشین دانه کار دانشیار گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران بهمن جباریان امیری استادیار گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران سهراب اشرفی استادیار گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران

sensitive coastal areas are fragile ecosystems affected by geographic features and in the same time settlements were developed around these areas due to their ecological capability. coastal ecosystems due to their countless benefits are very important for protection. hence, this paper attempts to determine the sensitivity of coastal ecosystem to disturbances in hormozgan province. we reviewed 2...

Journal: :محیط زیست طبیعی 0
لیدا داور دانشجوی دکتری محیط زیست دانشکدۀ منابع طبیعی، دانشگاه تهران منا عزیزی جلیلیان دانشجوی دکتری محیط زیست، دانشگاه ملایر رضا رفیعی دانشجوی دکتری محیط زیست، دانشگاه کوئینزلند استرالیا افشین دانه کار دانشیار گروه محیط زیست دانشکدۀ منابع طبیعی، دانشگاه تهران

despite the fact that coastal areas are benefiting from verity of biological resources of marine and inland systems, they are exposed to destructive threats from both systems. hence, coastal areas are the most vulnerable sectors in the world. population growth, tourism, urbanization, and industrialization are the most important factors in increasing pressure on the coastal and marine areas. ide...

Ali Khoshkholgh, Mohammad Hossein Kazeminezhad, Reza Parsa,

Abstract Application of numerical models is useful in coastal sediment studies; however, it is essential to calibrate the models in an appropriate method. Empirical equations, historical satellite imagery and other coastal data and evidence are proposed for the models calibration in the vicinity of coastal indicators around the site of projects. In this study, coastal sediment process of K...

Lakmali , E.N, Deshapriya , W.G.A, Jayawardene, K.G.A. Ishara, Premasiri , H.M.R, Ratnayake , N.P, Raviranga , R.M.P, Senanayake, I.P,

Coastal zone of Sri Lanka is a key to sustainable development of the country. The erosion of country’s coastal zone has been identified as a long standing problem. Therefore, coastal sediment dynamics around the country has to be identified to develop an appropriate coastal zone management plan. Remote sensing and GIS techniques can be used for quantitative and qualitative analyses of coastal p...

, ,

One of the sensitive systems in geomorphology is coastal systems in which the change in them is fast due to the collision of two dynamic environments of sea and land.Because Coastal lines can record evidence of geomorphological alterations. Due to several reasons like environment changes, global warming, issues regarding human activities and etc. studies and quantitative measurements from perio...

2003
RATANA CHUENPAGDEE DANIEL PAULY

Stresses impacting the coastal zone in the Asia-Pacific region are briefly reviewed under the headings of sustainable coastal activities, coastal ecosystem management, community/resource interactions, coastal resource economics and sustainability, coastal area planning, and integrated coastal policies. Recent contributions on mitigation of these stresses are introduced, with emphasis on the Coa...

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