نتایج جستجو برای: Coastal areas
تعداد نتایج: 445994 فیلتر نتایج به سال:
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...
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...
There are major differences in the bioproduction potential of different coastal areas. The aim of this work is to review and discuss simple, operational criteria related to the bioproduction potential of coastal areas and to present and motivate an Index of Biological Value (IBV) for coastal management. This index is based on two key variables, which can be determined easily from bathymetric ma...
Tsunamis are caused by the displacement of a large volume of water, generally in an ocean or a sea. Earthquakes, volcanic eruptions and other underwater explosions, landslides, glacier calvings, meteorite impacts and other disturbances above or below water have the potential to generate a tsunami. The coastal areas of Kollam district, the present study area was seriously affected by the catastr...
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...
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...
Due to coastal areaschr('39') dynamic nature, sediment transport frequently changes the shape and morphology of coastal profiles. During the time, coastal areas adjust their sedimentation regimes to such changes. Although constructing structures such as breakwaters and jetties in coastal areas results in disorder in their natural sedimentation regime. To restore the natural regime, Sand Bypassi...
Increasing the per capita consumption of shrimp in the country needs to examine consumer’s behavior, in this way, a product will be produced according to the interests of the consumption community and the barriers to consumption will be removed in the country. Since the behavior of consumers of one type of food (shrimp) may vary in different regions, assessing this difference will help provide ...
We thank Yang et al. (1) for their perspective. We are aware of the importance of coastal wetland protection for endangered migratory birds. Our paper in PNAS (2) focuses on the general representation of protected areas for endangered species (e.g., endangered birds) and ecosystem services. Thus, we did not emphasize the representation in nature reserves of coastal wetlands for endangered migra...
Coastal areas consider as a strategic and important region of each country. Proximity of water and land always was the origin of human societies’ formation. Currently, in the rapidly changing world the emphasis shifts on urban issues according to strategy and urban management, especially management of coastal development. Iran considering wide costal area in the north and south is no exception....
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