نتایج جستجو برای: protection of natural resources

تعداد نتایج: 21227798  

Journal: :journal of genetic resources 2015
mojtaba mohseni hoda ebrahimi mohammad javad chaichi

ethanol producing bacteria are useful in industrial production of biofuel. there are interesting for screening of active bacteria from natural resources and introduce to biofuel industries. the present study aims to isolation of ethanol producing bacteria with characterization, optimization, and evaluation of their ethanol productivity. samples from various fruits, plant saps and soils were scr...

2009
Andrea Weber

Growing climate change constitutes one of the most pressing challenges of our times. As resources become increasingly scare and the demand for energy grows in expanding economies, it is vital that the discussion on climate protection and sustainable development strategies be placed at the top of societal and political agendas worldwide. The benchmark for all efforts must be the well-being of co...

Journal: :international journal of agricultural management and development 2011
michael g. kanyi tom vandenbosch fredrick u. ngesa joash k. kibett

integrating natural resources management in the secondary school curriculum in kenya has received a lot of talk without adequate practical activities. the farmers of the future programme under the world agroforestry centre, formally the international centre for research in agroforestry (icraf), initiated a practical approach to integration of natural resources management in the secondary school...

Journal: :journal of rangeland science 2011
gh. chamapira s. taghavi goudarzi

in recent years, the occurrence of water and wind erosion indifferent parts of country due to the changes of land use from the forest andpasture into the agricultural and also construction of communication lineshave increased. the study and research on this phenomenon, the effectivefactors in creating them and also identification of geomorphology faciestypes are necessary to prevent the waste o...

ژورنال: آبخیزداری ایران 2021

The mechanism of land subsidence and soil deformation is the dissipation of the excess pore water pressure and the compaction of the soil skeleton under the effect of natural or man-made factors. Land subsidence has occurred in more of 300 plains of Iran, and Semnan Plain is one of the most important areas that face to this phenomenon. The aim of current research was land subsidence susceptibil...

Journal: :Journal of the Japanese Association for Petroleum Technology 1992

Journal: :environmental studies of persian gulf 2014
reza pourimani zahra nemati

the activity concentrations of 235u, 232th, 226ra, 40k and 137cs in ground and surface of drinking water resources in iranian city of arak were determined by gamma ray spectrometry with ahpge detector setup, coaxial p type and 8192 channels mca. the water samples differed in radioactivity content depending on their origin and place. in the drinking water samples from aman abad, mobarak abad, an...

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