in this research, the applicability of geographic information system (gis) and remote sensing (rs) techniques was tested to assess soil erosion risk with the icona erosion model. this study was carried out in the tange bostanak area because of its variety of diverse landforms, land uses and land covers. the erosion risk assessment phase of this model consists of seven steps that mainly use slop...

a fish species prefer a particular habitat where provides its biological requirements, hence, understanding their habitat use and preferences are crucial for their effective management and protection. this study was conducted to assess the habitat use and selection patterns of alburnoides namaki , an endemic fish in jajroud river, namak lake basin, iran. the river was sampled at 18 equally spac...

the high hillsides of the tehran metropolis are prone to landslides due to the climatic conditions and the geological, geomorphologicalcharacteristics of the region. therefore, it is vitally important that a landslide susceptibility map of the region be prepared. for thispurpose, thematic layers including landslide inventory, lithology, slope, aspect, curvature, distance to stream, distance to ...

1. introduction although solar energy is one of the important renewable, free and clean energy sources, constant exposure to the sun, especially uv radiation, can lead to some problems. these problems include skin diseases, loss of pregnancy, permanent or temporary infertility, and cataracts (strom, 2003), weak immunity system, and an increased risk of diseases especially in children (hoyos-bac...

introduction: the modis facility for the earth observing system is a key element that supports ambitious goals related to studying the earth as a system. one of the modis products is high quality land surface temperature data that product in terra and aqua platforms. knowledge of the lst provides information on the temporal and spatial variations of the surface equilibrium state and is of funda...

The Mirabad protected area (S. Azarbaijan, Iran) has a variety of ecological nurseries due to elevation of the sea, physiographic factors, micro-climates and soil types, and has high vegetation diversity. Mirabad protected area in the Piranshahr-Sardasht axis is between the latitudes of 36° 23' and 36° 31' north, and the lengths 45° 15' and 45° 25', with an area of ​​11435 ha, in the elevation ...

Satellite-based precipitation products (SBPPs) are essential for rainfall quantification in areas where ground-based observation is scarce. However, the accuracy of SBPPs greatly influenced by complex topography. This study evaluates performance Integrated Multi-satellite Retrievals GPM (IMERG) and Global Satellite Mapping Precipitation (GSMaP) characterizing a mountainous catchment southwester...

Forest soils belong to the major carbon sinks on Earth because of their high organic matter content. from Europe store approximately 1.5 times more than trees (EC/UN-ECE 2003). As dystric cambisol (2,292,385 ha) and eutric (869,909 are most widespread forest in Romania, we studied 5958 pedogenetic horizons 6784 horizons. A series correlations was made between soil elevation, but also with tree ...