نتایج جستجو برای: coastal areas
تعداد نتایج: 445994 فیلتر نتایج به سال:
Background: The effect of natural background radiation on health is still controversial. However, it is clear that it depends on the dose received by the population. The estimation of external natural background gamma rays received by the population of Caspian coastal provinces in the northern part of Iran was the main goal of this study. Materials and Methods: Gamma rays was measured ...
Nowadays, for managing coastal zones and littoral lands, we need accurate and updated information on hydrography of coastal areas. These data can be obtained by local measurements, airborne imagery and satellite data. Using satellite data is not time-consuming and expensive like than other methods, thus it is most economical method in the world. Unfortunately, this method is not developed in Ir...
The sustainable management of coastal natural resources inevitably involves identifying stakeholder conflicts and developing planning processes that prevent these conflicts from becoming intractable disputes. This study links environmental conflict to specific areas within a large ecological system. Specifically, we use Geographic Information Systems (GIS) to map potentially competing stakehold...
Having a mild and humid climate, Gilan province is closer to the comfort zone than other regions of Iran. In addition, the use of radiation, wind, precipitation and humidity components in the spatial organization of native houses has led to the formation of a semi-open space next to the closed space. In general, the placement of spaces in this climate is such that there is no clear border betwe...
Coastal areas play a crucial role in the economical, social and political development of most countries; they support diverse and productive coastal ecosystems that provide valuable goods and services. Globally flooding and coastal erosion represent serious threats along many coastlines, and will become more serious as a consequence of human-induced changes and accelerated sea-level rise. Over ...
Scientifically-based systematic conservation planning for reserve design requires knowledge of species richness patterns and how these are related to environmental gradients. In this study, we explore a large inventory of coastal breeding birds, in total 48 species, sampled in 4646 1 km2 squares which covered a large archipelago in the Baltic Sea on the east coast of Sweden. We analysed how spe...
In coastal areas, hydrodynamic factors make changes in shorelines geomorphology. This can affect coastal facilities and cause hazards to human societies in the areas. This study has investigated the influence of wave and tide properties on Khamir Port, Hormoz Strait in coast of Persian Gulf. The purpose of the study is to make a mathematical regional and local modeling of water level fluctuatio...
We contend there are currently two competing scenarios for the sustainable development of shrimp aquaculture in coastal areas of Southeast Asia. First, a landscape approach, where farming techniques for small-scale producers are integrated into intertidal areas in a way that the ecological functions of mangroves are maintained and shrimp farming diseases are controlled. Second, a closed system ...
Because of the limited capacity of coastal lands and conflicting interests among stakeholders for coastal resources, there are intensifying pressures to retain and provide more public access to the coast. Coastal gated communities have been developed increasingly in the middle shoreline of Caspian Sea in North of Iran. They are kind of exclusive space production as they restrict public access t...
Coastal marine environment is a complex system and its management requires adequate information. Marine Protected Areas (MPAs) are considered pilot sites useful to define innovative tools for the Integrated Coastal Zone Management (ICZM). Their management requires however acquaintance with the relationships between the protected site and the status of the coastal neighbouring areas in order to ...
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