در هنگام جستجو کلمه در قسمت عنوان میتوانید کلمات مورد جستجو را با کاراکتر (-) جدا کنید.
کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Rangeland Science
- نوع مقاله: Journal Article
- کلمات کلیدی: CCA,Euclidean distance,Ward's method of clustering,Indicator species
- چکیده:
- چکیده انگلیسی: Classification of Ecological Species Groups (ESG) in plant community analysis is one method to describe vegetation and relating them to environmental factors. This study was conducted to recognize ESG and their relationships with some environmental factors in Chamanbid-Jozak protected area from 2014 to 2016. This area is located in the eastern part of North Khorasan province, Iran. The study area contains steppe vegetation with some woodlands and shrubs of Paliurus spina–christi, Cerasus pseudoprostrata, and Cerasus microcarpa. To recognize ESG, a systematic-random sampling, by using 1 m2 Sampling Unit (SU), was carried out to provide a matrix of 74 sampling units and 42 species. Canopy cover percentage of different species was recorded in each SU. Physiographical, physical, and chemical factors, including altitude, slope, soil texture, gravel percentages, Organic Carbon (OC), Nitrogen (N), Potassium (K), lime, soil acidity (pH), Phosphorus (P), and Electrical Conductivity (EC) were measured. Euclidean distance and Ward's method of clustering were used to classify the plant species. Six ESG were detected in clustering and indicator species analyses. The relationships among these ESG and environmental factors were analyzed using Canonical Correspondence Analysis (CCA). The first ESG consisting four indicator species was influenced by organic carbon and K of almost f.0 fertile soils. ESG2 and ESG3 consisting four and one, indicator species, respectively. These ESG were only slightly affected by phosphorus and less by environmental factors evaluated in this study. ESG4, including eight indicator species was mostly affected by environmental factors such as altitude, slope, pH, and N. Both ESG5 and ESG6 were affected by gravel percentages. ESG classification of vegetation for sound and proper resource management in future via using long-term projects is recommended.
- انتشار مقاله: 14-06-1395
- نویسندگان: Mohabat Nadaf,Hamid Ejtehadi,Mansour Mesdaghi,Mohamad Farzam
- مشاهده
- جایگاه : پژوهشی
- مجله: Avicenna Journal of Phytomedicine
- نوع مقاله: Journal Article
- کلمات کلیدی: Ethnobotany,Astragalus,Fabaceae,Vascular Plants,World
- چکیده:
- چکیده انگلیسی: Objective: Astragalus L. (Fabaceae) is the largest genus of vascular plants in the world, that comprises an estimated number of 2900 annual and perennial species. The members of this genus have a broad spectrum of usages (e.g. medicine, food, fodder, fuel, ornamental plants, etc.). Here, we present a review of ethnobotanical applications of different species of Astragalus by various ethnic and cultural groupings worldwide, to provide an exhaustive database for future works.
Materials and Methods: Literature survey was performed using Scopus, Google Scholar, PubMed, Medline, and Science Direct, and English and non-English reference books dealing with useful properties of the Astragalus species from 1937 to 2018. Consequently, we reviewed a total of 76 publications that supported lucrative information about various uses of this huge genus.
Results: Several ethnobotanical uses of 90 Astragalus taxa were documented which were mainly originated from Asian and European countries. The two most frequently mentioned Astragalus treatments, were against urinary and respiratory diseases. The most commonly used part was gum and the most frequently used preparation method was decoction.
Conclusion: This review highlights that various Astragalus species have great traditional uses in different ethnobotanical practices throughout the world. However, there is still lack of phytochemical and pharmacological researches on many species of Astragalus and further studies are required to substantiate the therapeutic potential of them which will develop new generation of plant-derived drugs in the near future.- انتشار مقاله: 06-03-1398
- نویسندگان: Mohammad Sadegh Amiri,Mohammad Reza Joharchi,Mohabat Nadaf,Yasamin Nasseh
- مشاهده
- جایگاه : پژوهشی
- مجله: Avicenna Journal of Phytomedicine
- نوع مقاله: Journal Article
- کلمات کلیدی: Medicinal plants,Lamiaceae,Frequency of citation,Family importance value
- چکیده:
- چکیده انگلیسی: Objective: Since ancient times, plants have been commonly used to cure human ailments by indigenous people throughout the world. Nervous diseases are rising all around the world. This paper provides important ethnobotanical information on plants that are used against neurological disorders and are available in medicinal markets of Bojnord, northeastern Iran.
Materials and Methods: This survey, as an ethnobotanical study, was carried out between 2017 and 2018. The identification of the intended plant species was done using the available Floras. Some important indices such as the frequency of citations, relative frequency of citation (RFC), family importance value and use report were calculated for the medicinal plants included in the present study.
Results: The present study includes 58 medicinal plant species belonging to 36 families and reports their mentioning scientific and vernacular names, parts used, and preparation method. The most common family was Lamiaceae. The major parts of the identified plants used for treatment of nervous )neuropsychological( disorders were flower and aerial parts. The most common methods used for preparation of these plants were infusion and decoction. Stachys turcomanica, Tripleurospermum disciforme, Melissa officinalis, Nardostachys jatamansi, and Aloysia citriodora had the highest rate of use report. Echium amoenum and Melissa officinalis had the highest RFC.
Conclusion: The study indicated that although people in Bojnord have access to modern medicinal preparations, a considerable number of them still use medicinal plants for therapeutic purposes. Seemingly, most cited plants are worth more precise evaluations for their pharmacological activity.- انتشار مقاله: 04-06-1397
- نویسندگان: Mohabat Nadaf,Mohammad Reza Joharchi,Mohamad Sadegh Amiri
- مشاهده