نتایج جستجو برای: economic and ecological conditions

تعداد نتایج: 16947841  

Journal: رستنیها 2014
Fereshteh Sheikh Hasan Shahriar Saeidi Mehrvarz, Younes Asri,

The Oak genus (Quercus L.) is one of the most important genera of beach family (Fagaceae) that has ecological and economical importance. Chestnutleaf oak (Quercus castaneifolia C.A. Mey.) is native to Iran and distributed in Hyrcanian forests. Pure and mixed stands of this taxon have covered about 6.5 % of Hyrcanian forests. This study was undertaken to evaluate the effects of ecological factor...

ژورنال: مرتع 2022
, ,

Knowledge of medicinal plants and by-products and economic evaluation of their exploitation is one of the basic requirements in order to prepare a vision document for the exploitation of rangeland by-products. In this regard, the present study was conducted with the aim of ecological assessment and estimating the economic indicators of the use of medicinal plants in the montion rangeland of Kho...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده ادبیات و علوم انسانی 1385

چکیده ندارد.

Abstract Land salinization is a major obstacle to the sustainable development of agriculture in arid regions. The demand for food, fiber, fuel and fresh water has increased in the recent decades, particularly in developing nations, due to alarming rise in population. As fresh water resources and productive lands for crop production are limited, new strategies for the sustainable utilization of ...

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

this thesis attempts to study the representations of the third-world intellectuals in three fictional works by the british-educated trinidadian nobel-winner v. s. naipaul: the mimic men, a bend in the river, and magic seeds. the first one recounts the story of ralph singh’s sense of alienation, his experiences as a colonial politician, and his struggle to give order to his disorderly world thro...

Journal: :Revue scientifique et technique 1992
A Shimshony

The epizootiological and ecological conditions in Israel, as well as socio-economic and agricultural structures, have created a unique and hazardous veterinary public health (VPH) situation. The paper describes various VPH problems concerning zoonotic diseases, products of animal origin and rural ecology, and the attempts to solve them by the State Veterinary Services and Animal Health.

The book written by seventeen experts in the field of rangeland management, this compilation of essays brings to light the latent issues concerning this subject to readers all over the globe. Though technical approaches can address some issues, social processes ultimately prevent the balancing of these matters. Socio-economic and political institutions are often a stumbling block for improving ...

2018
Claudia Dislich Elisabeth Hettig Jan Salecker Johannes Heinonen Jann Lay Katrin M Meyer Kerstin Wiegand Suria Tarigan

Land-use changes have dramatically transformed tropical landscapes. We describe an ecological-economic land-use change model as an integrated, exploratory tool used to analyze how tropical land-use change affects ecological and socio-economic functions. The model analysis seeks to determine what kind of landscape mosaic can improve the ensemble of ecosystem functioning, biodiversity, and econom...

2015
Qing-feng Zhang Li Wang Lifeng Yuan Long-shan Zhao

a r t i c l e i n f o Eco-economic regionalization (EER) is to divide an area into geographical zones. Each zone is linked to the others based on the eco-economic similarity and disparity. In this study, models of EER of the Chinese Loess Plateau were constructed. Data on 22 selected indicators were gathered for the 282 administrative counties. Then they were analyzed through an approach of PCA...

2016

Title Type stabilizing self-dynamic socioeconomies evolutionary and ecological perspectives on farming economic systems for human needs PDF evolutionary perspectives on human sexual psychology and behavior evolutionary psychology PDF chapter 15 comparative and evolutionary perspectives on human brain growth PDF north by 2020 perspectives on alaska’s changing social-ecological systems PDF the ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید