1. introduction extensive fires in the forests are examples of natural crises (hosseinali, 2005) and forest fire events are increasing in the conditions of changing climate and global warming; (azizi and yousefi, 2005). this phenomenon is considered one of the most destructive factors for forest ecosystems, causing irreparable damages (marozas et al, 2007). some of these damages include land us...

introduction due to scarcity of forage and water resources and high feed prices in iran, it seems that the utilization of native and cheap forage resources for ruminants is important. the milk thistle (silybum marianum) is distributed in different regions of iran included: gonbad kavoos, gorgan, nodeh kalardasht, dareh hezareh, dasht mugan, poshtkoh, mollassani, shush, hamidieh, ramhormuz, izeh...

extended abstract 1. introduction the quality of life can be considered as an operational tool to measure the overall health and welfare. in general, the concept quality of life is affected by various factors constituting the foundation of the life dynamics. since the concept quality of urban life is multidimensional and complex, it could be used in urban planning when an appropriate and reliab...

introduction dominant process in arid and semi-arid region is dynamic of wind that carries the sand and caused damage to several facilities and human settlements. there are many human settlements with low population and mostly small and scattered in different parts of foothills of dasht-e lut (lut desert), especially in mountainous margins of alluvial fans. residential and cultivation area of t...

Introduction Nowadays, the unemployment crisis has had irreparable effects as a fundamental problem on all the economic, social and cultural aspects of the community. So that the stability and destruction of some governments depends on solving the unemployment crisis. The issue of economic development has always been one of the main concerns of countries. There are two factors that affect deve...

introduction no2 is not only a potential air pollutant in urban and industrial environments but also a precursor for smog of urban environment that is another ozone pollutant as well. some of the urban environments in iran have high tropospheric and near surface no2 which requires research attentions especially in these years. that is the issue of concern in the present study using satellite da...

introduction morphological segmentation of land surface is commonly used for land surface allocation in management and environmental sciences. the first step in assigning a piece of land to a specific application is to divide it into homogeneous morphological segments. traditional field-based geomorphological mapping can be time consuming, costly, and challenging when large areas, particularly ...