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بررسی تأثیر احداث جاده جدید هشتگرد - طالقان استان البرز بر مقدارفرسایش و تولید رسوب با استفاده از مدل WARSEM | ||
| نشریه علمی - پژوهشی مرتع و آبخیزداری | ||
| دوره 76، شماره 3، آبان 1402، صفحه 237-251 اصل مقاله (1.23 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jrwm.2023.354414.1694 | ||
| نویسندگان | ||
| سید مجید رضا حسینی مفرد1؛ حسن احمدی* 2؛ علی اکبر مهرابی2؛ بهارک معتمدوزیری1 | ||
| 1گروه جنگل، مراتع و آبخیزداری، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، تهران، ایران | ||
| 2گروه احیای مناطق خشک و کوهستانی، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران | ||
| چکیده | ||
| هدف از این پژوهش بررسی اثر جاده‌سازی بر میزان فرسایش و تولید رسوب در جاده جدید هشتگرد - طالقان در استان البرز بود. بدین منظور با توجه به معادله کوکران، از جاده آسفالته هشتگرد-طالقان به طول ۲۶ کیلومتر و جاده خاکی هشتگرد-طالقان به طول 9 کیلومتر به ترتیب با 17 و 11 نمونه رسوب‌دهی جاده محاسبه شد و در نهایت با استفاده از روابط آماری میزان فرسایش و رسوب‌دهی در کل مسیر برآورد شد. با اندازه‌گیری مستقیم فرسایش، کل رسوبات به‌جامانده در طول مسیر برابر با 17259.32تن در سال به دست آمد که 6241.45 تن در سال مربوط به دیواره خاک‌برداری و 11017.87 تن در سال مربوط به دیواره خاک‌ریزی می‌باشد. با استفاده از مدل WARSEM، میزان کل رسوب‌دهی از جاده آسفالته و خاکی برابر 15172.67 تن در سال، معادل 52.14 تن بر هکتار در سال، برآورد شد که از این مقدار 9464.53 تن در سال، معادل 48.03 تن بر هکتار در سال سهم دیواره خاک‌برداری و دیواره خاک‌ریزی جاده آسفالته و 5708.14 تن در سال، معادل 63.22 تن بر هکتار در سال سهم دیواره خاک‌برداری و دیواره خاک‌ریزی جاده خاکی می‌باشد. حساسیت مدل WARSEM برای پارامترهای استانداردشده برای جاده آسفالته نشان داد که فاکتورهای شیب و زمین‌شناسی عامل مهمی در رسوب از دیواره خاک‌برداری می‌باشد و فاکتور ارتفاع دیواره خاک‌ریزی پارامتر بسیار مهمی در رسوب‌دهی دیواره خاک‌ریزی می‌باشد. حساسیت مدل در جاده خاکی با توجه به این امتیاز پارامترها خیلی به هم نزدیک بود عامل عرض سطح جاده خاکی پارامتر بسیار مهمی در رسوب‌دهی دیواره خاک‌برداری و خاک‌ریزی می‌باشد | ||
| کلیدواژه‌ها | ||
| استان البرز؛ فرسایش؛ رسوب؛ جاده هشتگرد-طالقان؛ WARSEM | ||
| عنوان مقاله [English] | ||
| Investigating the effect of the construction of the new Hashtgerd - Taleghan road in Alborz province on the amount of erosion and sediment production using the WARSEM model | ||
| نویسندگان [English] | ||
| Seyed Majid Reza Hosseini Mofrad1؛ Hassan Ahmadi2؛ Ali Akbar Mehrabi2؛ Baharak Motamedvaziri1 | ||
| 1Department of Forest, Range and Watershed Management, Faculty of Natural and Environment, Science and Research Branch, Islamic Azad University Tehran, Tehran, Iran | ||
| 2Faculty of Natural Resources, University of Tehran, Karaj, Iran | ||
| چکیده [English] | ||
| For this purpose, according to Cochran's equation, from Hashtgerd-Taleghan asphalt road 26 km long and Hashtgerd-Taleghan dirt road 9 km long, road sedimentation was calculated with 17 and 11 samples, respectively, and finally, using statistical relationships, the erosion rate was calculated. And sedimentation was estimated in the entire route. By direct measurement of erosion, the total sediments remaining along the route were equal to 17259.32 tons per year, of which 6241.45 tons per year are related to the excavation wall and 11017.87 tons per year are related to the embankment wall. Using the WARSEM model, the total amount of sedimentation from asphalt and dirt roads was estimated as 15172.67 tons per year, equivalent to 52.14 tons per hectare per year, of which 9464.53 tons per year, equivalent to 48.03 tons. Per hectare per year, the contribution of the excavation wall and the embankment wall of the asphalt road is 14.5708 tons per year, which is equivalent to 22.63 tons per hectare per year, the contribution of the excavation wall and the embankment wall of the dirt road. The sensitivity of the WARSEM model for the standardized parameters for the asphalt road showed that the slope and geological factors are important factors in the sedimentation of the embankment wall and the height factor of the embankment wall is a very important parameter in the sedimentation of the embankment wall. The sensitivity of the model on the dirt road according to this score of the parameters was very close to each other. | ||
| کلیدواژه‌ها [English] | ||
| Erosion, Hashtgerd-Taleqan Road, Sediment, WARSEM, Alborz province | ||
| مراجع | ||
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