نتایج جستجو برای: desert areas

تعداد نتایج: 414951  

2016
Paul C. Sokoloff Colin E. Freebury Paul B. Hamilton Jeffery M. Saarela

The Mars Desert Research Station is a Mars analog research site located in the desert outside of Hanksville, Utah, U.S.A. Here we present a preliminary checklist of the vascular plant and lichen flora for the station, based on collections made primarily during a two-week simulated Mars mission in November, 2014. Additionally, we present notes on the endolithic chlorophytes and cyanobacteria, an...

Journal: :international journal of advanced biological and biomedical research 2013
alireza karimzadeh mohammad reza aminizadeh bazanjani

agricultural droughts are droughts that affect the crop production or the ecology of a region. ravar city that is located in margin of desert and the north of kerman province is one of these areas. due to the existence of enough underground water that entrance to desert and high evaporation to improving agricultural and cultivar activities, it needed to study the construction of underground dam...

2012
K. H. Li W. Song X. J. Liu J. L. Shen X. S. Luo X. Q. Sui B. Liu Y. K. Hu

Biogeosciences Discussions This discussion paper is/has been under review for the journal Biogeosciences (BG). Please refer to the corresponding final paper in BG if available. Abstract Atmospheric concentrations of reactive nitrogen species (Nr) from 2009 to 2011 are reported for ten sites in Xinjiang, an arid region in Northwest China. Concentrations of NH 3 , NO 2 , particulate ammonium and ...

2014
Hukam Singh GEHLOT Nisha TAK Harchand R. DAGLA Tim D. DAVIS

The densely populated Indian Thar Desert, which extends from India to Pakistan, is the 18th largest in the world. Diurnal variation in temperature, erratic precipitation, poor soil texture, and saline tracts are serious constraints for the livelihood of humans. The Indian Thar Desert also has significant natural resources that can be harnessed to mitigate constraints and to support life of its ...

2009
Jesse McEntee Julian Agyeman

The food desert metaphor has been widely used by academics and politicians alike. While there is general agreement onwhat a food desert is in a relatively vague sense, strategies to identify food deserts, especially in a rural setting, using a systematic method remain undefined. The purpose of this paper is to contribute towards the development of a method for rural food desert identification s...

2016
M. Griffin

The taxonomy, distribution, and ecology of six speCies of gerbilline rOdents occurring in the central Namib Desert, four in the genus Gerbi/lurus, are reviewed. The high species richness is unique in southern Africa; moreover, four species have terminal range limits within the area. Higher and more predictable rainfall areas support higher gerbil densities. Population densities and, for at leas...

Alireza Karimzadeh, Mohammad Reza Aminizadeh Bazanjani

Agricultural droughts are droughts that affect the crop production or the ecology of a region. Ravar city that is located in margin of desert and the north of Kerman province is one of these areas. Due to the existence of enough underground water that entrance to desert and high evaporation to improving agricultural and cultivar activities, it needed to study the construction of underground dam...

Alireza Karimzadeh, Mohammad Reza Aminizadeh Bazanjani

Agricultural droughts are droughts that affect the crop production or the ecology of a region. Ravar city that is located in margin of desert and the north of Kerman province is one of these areas. Due to the existence of enough underground water that entrance to desert and high evaporation to improving agricultural and cultivar activities, it needed to study the construction of underground dam...

Journal: :Revue scientifique et technique 2007
N Odontsetseg Tserendorj Sh Z Adiyasuren D Uuganbayar A S Mweene

Anthrax is endemic throughout Mongolia, except in the semi-desert and desert areas of the south. The prevalence of anthrax in Mongolia had drastically decreased since the 1950s due to the use of anthrax antiserum and vaccines, but the privatisation of the animal husbandry sector and changes in the structures of the veterinary and medical delivery systems in Mongolia over the last decade have re...

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