فهرس المقالات Polour

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  1 - نقش دانش بومی در حفاظت از مراتع ییلاقی پلور استان مازندران
  فاطمه آذر جلال محمودی قدرت‌اله حیدری
  هدف کلی این تحقیق بررسی تأثیر دانش بومی در توسعه اکوتوریسم و ایجاد درآمد "منطقه پلور در استان مازندران"می‌باشد. تحقیق حاضر یک تحقیق پیمایشی بوده و اطلاعات بر مبنای طراحی پرسشنامه در قالب طیف لیکرت جمع‌آوری می‌شود. جامعه‌ی مورد بررسی از 210 نفر از ساکنین منطقه پلور تشکیل أکثر

  هدف کلی این تحقیق بررسی تأثیر دانش بومی در توسعه اکوتوریسم و ایجاد درآمد "منطقه پلور در استان مازندران"می‌باشد. تحقیق حاضر یک تحقیق پیمایشی بوده و اطلاعات بر مبنای طراحی پرسشنامه در قالب طیف لیکرت جمع‌آوری می‌شود. جامعه‌ی مورد بررسی از 210 نفر از ساکنین منطقه پلور تشکیل شده و حجم نمونه به صورت تصادفی براساس فرمول کوکران تعداد نمونه آماری 111 نفر بدست آمده است. اما در عملیات میدانی تنها تعداد 70 پرسشنامه تکمیل گردید و بقیه افراد تمایلی به پاسخگویی نداشتند. پایایی تحقیق به وسیله ضریب آلفای کرونباخ محاسبه و مقدار این ضریب 803/0 به دست آمده است. برای تجزیه و تحلیل داده‌ها از آزمون‌های آنالیز واریانس و مقایسه میانگین‌های دانکن و همچنین ضریب همبستگی پیرسون و رگرسیون ساده استفاده شد. آنالیز داده‌ها با استفاده از نرم‌افزار spss انجام شد. نتایج تحقیق نشان داد که بین دانش بومی و توسعه صنعت اکوتوریسم و رونق اقتصادی رابطه معنی‌داری وجود دارد. یعنی با مدیریت صحیح و مبتنی بر دانش بومی می‌توان علاوه بر جذب گردشگر، ایجاد اشتغال، درآمدزایی، حفظ فرهنگ و سنن بومی منطقه به حفاظت از عرصه‌های منابع طبیعی بالاخص مراتع منطقه مورد مطالعه پرداخت. تفاصيل المقالة
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  2 - Ecological Effects of Climate Factors on Rangeland Vegetation (Case Study: Polour Rangelands)
  Diana Askarizadeh Hossein Arzani
  Climate is the most important factor of plants distribution in global and regional scale. Understanding the current distribution of vegetation cover and its interaction with climate regularity is important for predicting its future. In order to determine the effective c أکثر

  Climate is the most important factor of plants distribution in global and regional scale. Understanding the current distribution of vegetation cover and its interaction with climate regularity is important for predicting its future. In order to determine the effective climate factors in plant life-form in Polour rangelands in the Damavand summit (2400 to 4100 m above sea level), Iran, a study was carried out in May to July 2016. Climatic diagram for the average data of 2006-2016 was obtained by Emberger’s method. Regression method was used for determining the relationships between altitude and climatic factors and the output was employed to draw isothermal and isohyet maps as well as phytoclimatic map using Arc GIS v.10.2 software. One square meter plots were established randomly in the stand area and vegetation cover data were collected. The results showed that the study area has cold arid climate with six months of drought period. The stepwise regression analysis between total vegetation cover and the climate factors showed that minimum temperature was the most effective variable (r=0.875) that may influence the vegetation cover. The plant growth was started when environmental temperature copes with 10oC which was mid-April. Hence, the upland rangeland plants of Polour are grown in severe condition and the most life forms such as grass-shrubs need sufficient climatic components such as precipitation and temperature. Therefore, the range management approach can be achieved by limiting the grazing periods for two months to maintain the current vegetation cover which finds an opportunity to balance themselves with expressive climate changes. تفاصيل المقالة
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  3 - The Surveying of Range Condition and Biodiversity in Four Sites of Northern Alborz Rangelands, Iran
  Mohammad Hassan Jouri Diana Askarizadeh Vahid Rahimi Kakroodi
  Evaluation of range conditions and plant diversity circumstances can help to rangeland managers who establish their managerial approaches on the basis of ecological capabilities of rangeland ecosystems. Hence, surveying of rangelands was done in four sites of northern A أکثر

  Evaluation of range conditions and plant diversity circumstances can help to rangeland managers who establish their managerial approaches on the basis of ecological capabilities of rangeland ecosystems. Hence, surveying of rangelands was done in four sites of northern Alborz Mt. including western Alborz (Masooleh site), west to middle Alborz (Javaherdeh site), central area (Polour site), and eastern region (Ramian site). A 64 grid (1 m2) was laid down in stand area of each site and range condition was assessed by Daubenmire Method. Alpha, Beta, and Gama diversities, and plant richness and evenness were calculated in each grid using PAST v.2.03 software. Relationships between range condition and biotic and abiotic factors were done using stepwise regression method. Results showed that Ramian site had the most Beta and Gama diversities and the Javaherdeh and Masooleh sites had the most Alpha diversity as well. The Polour site had the least diversities indices because of overgrazing and poor rangeland condition. It however had high level of the plant evenness. Range conditions, soil conservation, and litter rate were the highest grades in the Ramian site than the others. Regarding the results, therefore, the rangers can be capable to balance the rangeland ecological conditions using desirable grazing capacity and pressure. تفاصيل المقالة