نتایج جستجو برای: arid and semi arid areas

تعداد نتایج: 16869166  

Journal: :Journal of human resource & leadership 2023

The study examined the influence of organizational learning on humanitarian aid response in arid and semi-arid areas Kenya. research question specifically focused understanding relationship between effectiveness these regions. used a positivism approach explanatory design. population was 5996 sample size 375 obtained using Yamane formula. Structured questionnaires interview guides were to colle...

Journal: :PeerJ PrePrints 2016
Pasquale Nino Silvia Vanino Flavio Lupia Giuseppe Pulighe Carlo De Michele Guido D'Urso

Water managers need map of irrigated areas (defined as the identification of their location and their areal extent) to plan a rational use of water under limited availability and to prevent the unauthorized withdrawals. Many authors have shown that the Earth Observation techniques are an effective tool for mapping irrigated areas worldwide at different spatial scales (global/regional/and local)...

Journal: :پژوهش های زراعی ایران 0
مرجان قائمی علیرضا آستارایی سید حسین ثنایی نژاد

more than two third of the world lands are located in arid and semi arid area including iran. unfortunately there is lack of information and consequently poor scientific studies in these areas because of the difficulties which we face for collecting data and doing field studies in such a big areas under hard situations. however, in the recent decades there has been a great progress in using rem...

Journal: :بوم شناسی کشاورزی 0
جمیله باردل احمد قنبری مصطفی خواجه

salinity tolerance is one of the most important affecting factors on agricultural production in arid and semi-arid areas. in order to study the effects of saline and fresh water irrigation with application of organic and npk fertilizers on cumin, a split plot experiment based on randomized complete block design was carried out with three replications during 2011 and 2012, at the research farm o...

Journal: :desert 0
h. azarnivand associate professor, faculty of natural resources, university of tehran, karaj, iran m.a. zare chahouki associate professor, faculty of natural resources, university of tehran, karaj, iran h. joneidi assistant professort, university of kurdestan, sanandaj, iran

one of the characteristics in iranian model of desertification potential assessment (imdpa) is vegetation. sincevegetation is very important factor in the degradation of land, so some indices were determined for this item in order toevaluate desertification potential of arid, semi arid and arid sub humid areas of iran. the indices included vegetationcondition, exploit and revegetation. to calib...

2015
Cleandson Ferreira SANTOS Alex Chavier SILVA Raquel Andrade RODRIGUES Jamilli Sanndy Ramos de JESUS Magno Augusto Zazá BORGES

In Brazil, most studies of the Culicidae family are concentrated in rainforest regions. As such, there is a lack of knowledge regarding the diversity of Culicidae in regions with different climatic and vegetational characteristics. The aim of this study was to compile an inventory of Culicidae in protected areas of the semi-arid region of the state of Minas Gerais, Brazil, in order to better un...

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