Volume 16, Issue 2
مرور بر اساس
ارسال های اخیر
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Assessment of potential climate change impacts on drought indicators (Case study: Yazd station, Central Iran)
(University of Tehran, 2011-12-01)This research studies the potential impact of climate change on future trend and changes of two well known drought indicators namely RDI and SPI in Yazd meteorological station, in central part of Iran. For this purpose, ...
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Effect of salinity on wheat (Triticum aestivum L.) grain yield, yield components and ion uptake
(University of Tehran, 2011-12-01)Crops growing in salt-affected soils may suffer from physiological drought stress, ion toxicity, and mineral deficiency. A pot study was conducted in 2004-2005 in the Aghala area (northern Iran) to study the effect of ...
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Study of interaction between salinity and charcoal rot diseases of melon (Macrophomina phaseolina) in Semnan and Garmsar
(University of Tehran, 2011-12-01)Charcoal rot diseases of melon caused by Macrophomina phaseolina is one of the most important diseases of melon occurring in regions with variable climate. Reduction of yield of melon by this disease has been reported up ...
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Prediction of the vegetation management impacts on reduction of wind erosion risk in the southern parts of the Varamin Plain, Iran
(University of Tehran, 2011-12-01)Wind erosion is a major environmental issue affecting land resources and socio-economic settings in Iran. This paper outlines a study undertaken to provide a new tool to manage wind erosion from physical and economic ...
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A study on Isatis suspension trap efficiency; Advantages and disadvantages
(University of Tehran, 2011-12-01)Different types of sediment trap have been introduced so far to be used in erosion measuring stations, each with its own advantages and disadvantages in trapping aeolian particles. These traps have different collection and ...
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Comparison of EPM and geomorphology methods for erosion and sediment yield assessment in Kasilian Watershed, Mazandaran Province, Iran
(University of Tehran, 2011-12-01)Evaluation of Sediment yield in watershed scale is considered so important for implementation of soil conservation, watershed management, environment, dam construction and water resource management. Using empirical model ...
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Evaluation of quantity and quality of the yield of two wheat cultivars in intercropping system
(University of Tehran, 2011-12-01)In order to evaluate the yield, yield components and protein contents of two wheat cultivars (Zarrin and Gaspard) in sole cropping and intercropping systems,an experiment was conducted using replacement serious technique ...
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Landforms identification using neural network-self organizing map and SRTM data
(University of Tehran, 2011-12-01)During an 11 days mission in February 2000 the Shuttle Radar Topography Mission (SRTM) collected data over 80% of the Earth's land surface, for all areas between 60 degrees N and 56 degrees S latitude. Since SRTM data ...
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GIS-based analysis of spatial distribution patterns of growing degree-days for agricultural applications in Iran
(University of Tehran, 2011-12-01)The geographical distribution of growing degree-days (GDDs) within Iran was studied using GIS-based maps. GDDs were calculated using daily thermal parameters (daily maximum and minimum air temperature). Based on the purpose ...
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Assessment of the Palmer drought severity index in arid and semi arid rangeland: (Case study: Qom province, Iran)
(University of Tehran, 2011-12-01)Drought is a normal, recurring feature of climate phenomena; it may occur virtually in all climatic regions. The effects of drought accumulate slowly and its impacts are spread over a larger geographical area than other ...
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Assessment of soil property spatial variation based on the geostatistical simulation
(University of Tehran, 2011-12-01)The main objective in the present study was to assess the spatial variation of chemical and physical soil properties and then use this information to select an appropriate area to install a pasture rehabilitation experiment ...
