Gully erosion is one of the most significant erosion types. This type of erosion is one of the most important sources of sediment in different regions of the world. Gullies often have different dimensions and complex characteristics and these characteristics may affect the distribution of vegetation. Topographic characteristics of gullies provide complex ecosystem for vegetation establishment. ...

From the beginning of their lives, human beings have been constantly faced with geomorphic threats, and these risks have led to human and financial losses in human habitats, especially in cities and villages, for human societies. One of these risks is earthquakes. According to a report by the United Nations Planning Office in 2002, Iran ranked first among the countries in the world in terms of ...

Ecological studies are principal methods for scientific maintenance and utilization of natural resources and environment. In this research the study of range plant species autecology has been performed in Khorasan Razavi province. Ecological factor such as topography, soil characteristic and climate were studied. Associated species, the presence of species in vegetation, root system and phenolo...

The compact city as a tool to limit energy consumption and urban sprawl is a key element in the sustainable city debate. The purpose of this research is Identify and investigate the drivers to use the compact city in Ahvaz city. The present research is applied in terms of purpose and in terms of descriptive-analytical method. The statistical population includes 10 city managers and researchers ...

Abstract Lack of stored soil moisture is an essential factor in intensification of the problems of arid and semi-arid areas in Kohgiloyeh va Boyerahmad Province. In these areas, limited surface water and groundwater have rendered vast areas of the region’s fertile lands useless. Despite these problems, appropriate conditions can be provided to plant resistant and adapted species such as olive...

This article was written with the aim of revealing land use changes in Urmia city using remote sensing of Landsat satellite images for 4 periods of 8 years between 1990 and 2019. For this purpose, two categories of data will be used in this research. The first category includes data obtained from satellite images and the second category includes ground data taken from Urmia ground station, whic...

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...