نتایج جستجو برای: bakhtiari province to identify environmental parameters affecting thevegetation cover

تعداد نتایج: 10872394  

Importance of probability distribution functions in natural resource studies is increasing due to their effective roles in better understanding of vegetation structure and providing conceptual models of quantitative indices of plant species. The present study was performed to model the distribution of height and canopy area of Cionura erecta L. shrub, using probability distribution functions in...

Journal: :محیط زیست طبیعی 0
سعید محمدی دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، گروه علوم محیط زیست، تهران، ایران محمد کابلی استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران محمود کرمی استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران افشین علیزاده شعبانی استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران میترا شریعتی نجف آبادی کارشناس ارشد محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، ایران

iranian jerboa classified as data deficient species according to the iucn red list. little information has been published about ecological and biological characteristics of allactaga firouzi and other members of genus allactaga. in the present study, we aimed to identify some ecological characteristics, such as: hibernation, feeding habits, breeding, coexistence with other rodents and threateni...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1393

abstract foreign and iranian cultures are far distinct in the constraints imposed on writing and translating for children, since the iranian literary system is mainly concerned with cultural and religious instructions which lead to manipulation of translated texts. this study sought to identify the cultural and social constraints and norms which determined the strategies applied in the transl...

ژورنال: بوم شناسی آبزیان 2015
Esmaeilpour, Yahya, Kamali, Ali Reza, Khayrandish, Hamed, Zakeri, Omid,

Nowadays finding of ecologically suitable place or places for any activity, is one of the most important steps in the plan implementation. Roughly 94% of the net area of mangrove habitats in Iran is located in Hormozgan province which is the only place in south coast of the country that two species of mangrove trees grow naturally. In recent decades, biological reclamation and reforestation of ...

Weaving is one of the main techniques of the Bakhtiari tribe and their handwovens have diverse designs, techniques and methods inspired by the artists' minds and the design and pattern of woven materials are closely related to the culture and nature of the Bakhtiari area in the highlands and valleys - Zagros rivers. The geographic location of the area, especially the twist of communication netw...

ژورنال: آبخیزداری ایران 2019

In this research, in order to assess the biological and mechanical measures of flood and erosion control, two sub-watersheds of Heidari Watershed located in Chaharmahal and Bakhtiari Province with similar climatic, hydrological, edaphic, vegetation and land use conditions as representative areas were selected. To assess the conducted measures, social criteria including education, participation,...

Journal: Journal of Herbal Drugs 2011
Asghar Shahrokhi, Hamzeh Ali Shirmardi Maryam Ghaedamini

Background & Aim: Chaharmahal va Bakhtiari province contains several major floristic plant associations of central Zagros Mountains. Kallar species were used for medicines nutrias in this area. However, these valuable species have been threatened and even become at risk of extinction due to habitat fragmentation and disturbance. Therefore, the first step in protecting theses species is identify...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1372

a simple, sensitive and selective method for solvent extraction and spectrophotemetric determination of lanthanum (ii) europium (iii), and cerium (iii) is described , the rare earth metals are extracted into chloroform solution of n-phenylbenzohydroxamic acid (pbha) at ph 9-10 various parameters are studied to optimize the extraction conditions. the molar absorptivity is found to increase from ...

Journal: Journal of Herbal Drugs 2011
Asghar Shahrokhi, Hamzeh Ali Shirmardi Maryam Ghaedamini

Background & Aim: Chaharmahal va Bakhtiari province contains several major floristic plant associations of central Zagros Mountains. Kallar species were used for medicines nutrias in this area. However, these valuable species have been threatened and even become at risk of extinction due to habitat fragmentation and disturbance. Therefore, the first step in protecting theses species is identify...

Background: Every year many people are killed or injured in road accidents. The first step in planning to reduce accidents is to identify the causes of accidents. This study aimed to investigate and identify the causes and factors affecting the incidence and the severity of road accidents as a major issue in Ilam Province, Iran. Materials and Methods: This research is a descriptive study with ...

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