نتایج جستجو برای: changes area
تعداد نتایج: 1396072 فیلتر نتایج به سال:
Climate change has ubiquitous impacts on ecosystems and threatens biodiversity globally. One of the most recognized are redistributions species, a process which can be hindered by habitat degradation. Protected areas (PAs) have been shown to beneficial for preserving reallocating species occurrences under climate change. Yet, studies investigating effects PA networks species' range shifts remai...
Extended abstract 1- Introduction Land use includes all types of land uses to meet different human needs. In other words, land use refers to the type of human use of land, and this type of use is related to the value of the land and (its) natural characteristics. To understand and identify, land use changes using satellite data to provide a broad and integrated view of an area, reproduci...
To investigate land use changes, Qale Shahrokh basin (15098.1 ha area) was selected. Satellite images of Landsat sensors (MSS, TM and ETM+) were used. After improvement and different enhancement analysis of images such as FCC, PCA, the study area was checked using GPS and topographic maps (1:50000) and other information. Land use units were determined using classified random sampling method. Ma...
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