نتایج جستجو برای: desert areas

تعداد نتایج: 414951  

Journal: :natural environment change 0
seyed kazem alavipanah professor, department of remote sensing and gis, faculty of geography, university of tehran, iran ali akbar damavandi institute of technical and vocational higher education, agriculture jihad, agricultural research, education and extension organization (areeo), tehran, iran saham mirzaei phd student, department of remote sensing and gis, faculty of geography, university of tehran, iran abdolali rezaei phd student, department of remote sensing and gis, faculty of geography, university of tehran, iran saeid hamzeh assistant professor, department of remote sensing and gis, faculty of geography, university of tehran hamid reza matinfar associate professor, department of soil sciences, , faculty of agriculture, university of lorestan, iran hossein teimouri

soil is one of the most important natural resources covering a large area of the land surface. soil plays a vital role in biosphere processes, such as energy balance, hydrology, biochemistry, and biological productivity. it supports plants that supply foods, fibers, drugs, and some other human needs. conversely, desert regions include about one third of earth lands and these regions have increa...

Journal: :journal of rangeland science 2016
hossein tavakoli

climate change due to increasing the level of greenhouse gases including co2 is the main environmental issue of the world in the new century. one of the effective way for reducing atmospheric co2 is carbon sequestration by plants and soils. a vast area of iran has desert condition with special adapted plant species in which can be devoted for carbon sequestration. hammada salicornica as a shrub...

Journal: :American Journal of Environmental Engineering 2012

2007
Natalie M. Mahowald

[1] Changes in desert area due to humans have important implications from a local, regional to global level. Here I focus on the latter in order to better understand estimated changes in desert dust aerosols and the associated iron deposition into oceans. Using 17 model simulations from the World Climate Research Programme’s Coupled Model Intercomparison Project phase 3 multi-model dataset and ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1390

apart from other aspects, desert is a natural environment and is one of the appealing terrestrial elements. putting its symbolic and fictional senses aside, the term “desert” bears mystic sense more than material sense. in addition to the worlds materialistic experiences, desert has attracted the attention of writers because it creates a kind of inner experience, which returns the individual in...

Journal: :محیط شناسی 0
علیرضا ذاکر اصفهانی استادیار پژوهشگاه علوم انسانی و مطالعات فرهنگی

although the geographic and climatic conditions of the desert itself is not really growing, knowing about the iranian desert is important. what expands the deserts is the relationship of the desert areas with of the natural environment itself. degradation of water resources, soil and especially vegetation in the desert belt of iran provided conditions caused desertification and their spread on ...

A. Shafei Naderi A.A. Gharahdaghi M. Vatankhah, M.A. Abbasi M.R. Mofidi

In this study production, reproduction, population, management and economic parameters resulted from recording of 7 flocks with size 57 to 400 and 721 heads of camels in a cycle of reproduction, during three years from 2011 to 2013 were used to find out of the economic values of important traits in one hump camel in desert areas rearing system. The economic traits that appeared in profit equati...

Journal: :پژوهش و برنامه ریزی روستایی 0
محمود جمعه پور علی نماینده

this paper intends to identify and assess ecotourism potentials of different areas in maranjab desert, kashan district. the research is an applied one, and a descriptive-analytical research. both documentary and field studies have been adopted for data collection and thus identification and prioritization of areas with the highest potential for ecotourism development within the desert district ...

2015
Ning Tao Jianjiang Zhang Zhixin Song Jinhua Tang Jiwen Liu Paul B. Tchounwou

The purpose of this study was to explore the relationship between job burnout and neuroendocrine indicators in soldiers living in a harsh environment. Three hundred soldiers stationed in the arid desert and 600 in an urban area were recruited. They filled in the Chinese Maslach Burnout Inventory questionnaire. One hundred soldiers were randomly selected from each group to measure their levels o...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید