نتایج جستجو برای: spatial changes
تعداد نتایج: 1195902 فیلتر نتایج به سال:
Large scale land use/cover changes and habitat fragmentation have been associated with the decline of many wildlife populations in ecological sensitive regions. The main goal of this study was to quantify the spatial pattern changes in Caucasian Black Grouse habitat in Arasbaran Biosphere Reserve, Northwest of Iran in a period of 24 years (1987–2011). Caucasian black grouse (Tetrao mlokosiewicz...
Today, Mohtasham urban area in Kashan does not benefit from a suitable condition and has lost its importance over the last decades. The vast majority of the local inhabitants of this historical area have left their homes and have been replaced by weak and underprivileged dwellers of the urban community. Moreover, historical buildings have been demolished or worn out structurally, and local m...
Rural areas as an organism are encountered with many changes and transformations in rural ownership are associated with rural development system. Reconsideration of urban dwellers toward rural area is among one of the factors in this regard. Taking into consideration spatial system approach from one hand, and the achievement of rural sustainable development on the other hand, require special at...
abstractprecipitation could be regarded as a complex and a very vital element in the earth atmosphere and its spatial-temporal changes can control iran's climate. in the current research, in order to model the spatial-temporal changes of annual precipitation, the data taking from 50 synoptic stations, have been analyzed during the years 1966-2005, with a suitable distribution. the most dat...
Discussion: A large part of both clinical and subclinical lesions found in our daily work are benign and correspond with fibrocystic changes (FCC). This entity is complex and part exhibit traits that define characteristically in MRI and diagnose correctly, but there is another small group of changes that can take the image aspect of cancer. From a complex case, we review the main aspects of the...
environmental pollution by various pollutants is one of the most important problems of this century. at least 20 elements, including chromium have been classified in toxic metals group, that half of them are released in the environment in excessive amounts of standards. chromium is a toxic pollutant that is widely spread in the environment and exists in cement and concrete. the aim of this stud...
zayanderoud basin is one of the important agricultural areas in country level because of climatic variety and resuscitative water of zayanderoud river. since frost phenomenon especially late spring frost incurs great damages on fruit trees and agricultural products of this region, it is necfessary to study frost in this basin.in this research, the intensity of frost during cold period and sprin...
The aim of the present study was to evaluate the spatial and temporal changes of NPP in different biomes of Isfahan province from 2000 to 2014 and their response to climatic factors. For this purpose, the NPP data of the MODIS satellite were collected and the map of climatic variables was produced using various interpolation methods. The investigation of the spatial and temporal variations of N...
Unemployment is being considered as one of the prominent challenges as far as planner’s world over is concerned. This phenomenon has been the main concern of the Iranian planners as well. The relevant indices indicate changes in unemployment pattern. This study aims to explore and explain the spatial changes pertaining to rural unemployment. The nature of the research method demands the applica...
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