Volume 16, Issue 1
مرور بر اساس
ارسال های اخیر
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Soil hydrologic group detection based on geomorphologic facieses and slope (Case study: Taleghan Watershed, Iran)
(University of Tehran, 2011-09-01)The main goal of this paper is to propose a new practical method for hydrologic soil group estimation in surface runoff process based on geomorphology facieses and slop. The determination of CN based on this method can ...
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Evaluation of desertification intensity based on soil and water criteria in Jarghooyeh region
(University of Tehran, 2011-09-01)Desertification refers to land degradation phenomenon in arid, semi-arid and dry sub-humid areas, resulting from various factors including climate variation and human activities. For evaluation and mapping of desertification ...
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Comparison of Whittaker and Modified-Whittaker plots to estimate species richness in semi-arid grassland and shrubland
(University of Tehran, 2011-09-01)Biological diversity and species richness have been declined throughout the world as a result of human activities. Measuring species richness is important in rangeland conservation to evaluate the status and trends of ...
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Application of artificial neural networks on drought prediction in Yazd (Central Iran)
(University of Tehran, 2011-09-01)In recent decades artificial neural networks (ANNs) have shown great ability in modeling and forecasting non-linear and non-stationary time series and in most of the cases especially in prediction of phenomena have showed ...
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Exploring the relationship between land use and surface water quality using multivariate statistics in arid and semi-arid regions
(University of Tehran, 2011-09-01)The relative impacts of different types of land use on the surface water quality are yet to be ascertained and quantified. In this paper, the influence of different types of land use on surface water quality is investigated. ...
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Trends in precipitation and stream flow in the semi-arid region of Atrak River Basin, North Khorasan, Iran
(University of Tehran, 2011-09-01)In this paper trends of precipitation and stream flow are analyzed in the Atrak River basin in the North Khorasan province. Normal score linear regression, Mann-Kendall, and Seasonal Kendall trend tests were adopted. Three ...
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The effect of hydropriming and halopriming on germination and early growth stage of wheat (Triticum aestivum L.)
(University of Tehran, 2011-09-01)In order to study of hydropriming and halopriming on germination and early growth stage of wheat (Triticum aestivum L.) an experiment was carried out in laboratory of the Department of AgroNomy and Plant breeding, Shahrood ...
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Runoff and sediment yield modeling using WEPP in a semi-arid environment (Case study: Orazan Watershed)
(University of Tehran, 2011-09-01)Water erosion is a major environmental problem in many parts of the world. Majority of semi-arid countries are concerned because of their specific climate and soils sensitivity, but also because of the recent intensification ...
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Evaluation of the effects of soil properties on desertification (Case study: Segzi Pediment of Isfahan, Iran)
(University of Tehran, 2011-09-01)One of the characters in Iranian Model of Desertification Potential Assessment (IMDPA) is soil. Since soil is very important in the degradation of land, so some indices were determined for this character in order to evaluate ...
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Carbon storage by Atriplex lentiformis
(University of Tehran, 2011-09-01)Increasing level of carbon dioxide CO2 due to industrial activity is primarily cause of global warming. Planting Artoplex lentiformis can help to reduce atmospheric CO2 buildup partly replacing use of fuels and by carbon ...
