نتایج جستجو برای: iran is arid
تعداد نتایج: 7289935 فیلتر نتایج به سال:
the ability to speak two languages in the world is a remarkable achievement. there is a good reason to believe that bilingualism is the norm for the majority of people in the world because 70% of the earth’s population are supposed to be bilingual or multilingual. various investigations have shown that the native language impacts foreign word recognition, and this influence is adapted by the de...
on one hand, Iran due to the low annual rainfall and lack of appropriate spatial and temporal distribution in precipitation is considered as an arid and semi-arid country experiencing stress and water scarcity; on the other hand, 90% of annual water consumption has been allocated to agriculture sector in Iran and efficiency and productivity of water consumption do not enjoy favorable status in ...
The eastern Lut block of Iran has a high potential for porphyry copper mineralization due to the subduction tectonic regime. It is located in an inaccessible region and harsh arid conditions traditional mineral exploration campaigns. objective this study use Advanced Spaceborne Thermal Emission Reflection Radiometer (ASTER) remote sensing data Simorgh Area, Iran. Hydrothermal alteration zones s...
to teach english adequately, qualified teachers are needed. unfortunately, there are still teachers who are teaching english without an academic degree in tefl. it is necessary for teachers to have a major in english to have subject knowledge, but it is not sufficient. teachers need to have an understanding of the social, cultural, moral, ethical, and pedagogical issues of education and practic...
this study attempts to investigate the effect of peers’ revision in comparison to that of the teacher, and whether peers’ comments and teachers’ comments facilitate students’ revision? if yes, which one is more effective? also attempts have been made to see which aspects of language are more highlighted by peers versus teachers when commenting. besides, it is investigating the student’s attitud...
Shifting the sowing time of chickpea plants from spring to autumn in arid and semi-arid regions Iran is unavoidable. To study feasibility this issue, 32 desi-type genotypes were planted Mashhad (as a temperate region) Jolgeh Rokh cold screen cold-tolerant genotypes. The results revealed that 100% 19% had survival range 76–100%. MCC918 MCC913 highest height (69 33 cm, respectively). biological y...
one of the key factors in managing a rangeland is to determine the relative preference of its major plant species by thegrazing livestock. preference value of each plant species is affected by plant type, companion plants, availability byanimals, phenological stage, climate condition, and the livestock species. we investigated the grazing behaviour of anative goat (garizi) in the steppe rangela...
Rainfall, soil moisture, increasing temperature and changes in vegetation cover are the most important parameters effecting drought. Therefore, analysis of vegetation fraction and soil spectral signature, especially in red and infra red bands, are essential in drought estimation using remote sensing. In this study, Modified Perpendicular Drought Index (MPDI), which uses Vegetation Fraction (VF)...
The study of the maximum number consecutive dry days (MCDDs) is one approach to analyze precipitation behavior in arid and semi-arid regions Iran. This a first attempt investigate MCDDs their relationship with El Niño/Southern Oscillation (ENSO) winter months over was carried out using Tropical Rainfall Measuring Mission (TRMM) satellite data on daily basis at 1° latitude × longitude spatial re...
in this research, the groundwater quality of hoz–e–soltan lake and its catchment was studied for drinking, domestic and irrigation uses according to different parameters. this lake with 195 km2 catchment area is located 85 km of southwest of tehran–qom highway. in order to investigate groundwater quality characteristics in the study area, 34 data from water of well belong to 2008 selected to pr...
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