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واسنجی دستگاه بهسوختسنج در ارزیابی مقدار سوخت چوبی در ایران (مطالعه موردی جنگلکاریهای کاج تدا در مناطق جنگلی لاکان رشت) | ||
| تحقیقات حمایت و حفاظت جنگلها و مراتع ایران | ||
| مقاله 1، دوره 13، شماره 2 - شماره پیاپی 26، اسفند 1394، صفحه 87-96 اصل مقاله (491.27 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijfrpr.2016.106017 | ||
| نویسندگان | ||
| مسعود امین املشی* 1؛ مهرداد قدس خواه2؛ امیر اسلام بنیاد3؛ حسن پوربابایی3؛ مصطفی جعفری4؛ وحید غلامی2 | ||
| 1دانشجوی دکترای دانشگاه گیلان، ایران | ||
| 2استادیار، دانشکده منابع طبیعی دانشگاه گیلان، ایران | ||
| 3دانشیار، دانشکده منابع طبیعی دانشگاه گیلان، ایران | ||
| 4دانشیار، مؤسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران | ||
| چکیده | ||
| اندازهگیری مقدار سوخت چوبی افتاده با تغییراتی بر خطنمونه برای اولین بار به نام خطنمونه Brown مطرح شد و از بهسوختسنج (go/no go gauge) به‌عنوان وسیلهای برای اندازهگیری دقیق مقدار سوخت چوبی در کلاسهای مختلف قطری در بستر جنگل استفاده شد. ارزیابی مقدار سوخت یک نیاز ضروریست که باید در بررسی میزان سوختهای خطرآفرین در سراسر دنیا، به‌عنوان یک مقوله جدید در مدیریت آتشسوزی جنگلهای ایران نیز نهادینه شود. برای معرفی و کاربرد بهسوختسنج در برآورد مقدار سوخت چوبی در ایران، مواد سوختنی بخشی از مناطق جنگل‌کاری گیلان (جنگلکاریهای کاج تدا) برای واسنجی و بکارگیری این وسیله ارزیابی شد. برای این منظور با آماربرداری منظم- تصادفی و استفاده از خطنمونه، قطعات چوبی مرده در بستر جنگل توسط خطکش و بهسوختسنج اندازهگیری و مقایسه شدند. نتایج این بررسی نشان داد که بهسوختسنج ضمن راحتی و آسانی در اندازهگیری سوخت، از کارایی بالا برای ارزیابی و برآورد مقدار سوخت چوبی برخوردار است؛ اگرچه اختلاف معنیداری از نظر مقدار سوخت محاسبه شده توسط بهسوختسنج (21/5 تن در هکتار) و اندازهگیری مستقیم آن توسط خطکش (02/5 تن در هکتار) در سطح 95 درصد وجود ندارد. البته به لحاظ سرعت اندازهگیری نیز، نتایج نشان داد که بهسوختسنج میتواند زمان اندازهگیریها را بیش از یکسوم کاهش دهد، که این زمان از نظر هزینههای آماربرداری قابل توجه خواهد بود. | ||
| کلیدواژه‌ها | ||
| آتشسوزی جنگل؛ بهسوختسنج؛ جنگلکاریهای گیلان؛ مقدار سوخت | ||
| عنوان مقاله [English] | ||
| Calibration Instruments go/no go gauge in assessing the fuel Load of wood in the Iran (Case Study Loblolly pine forestation in Lakan city Rasht Forest of Gilan) | ||
| نویسندگان [English] | ||
| Masoud Amin Amlashi1؛ Mehrdad Ghodskhaا2؛ Amir Islam Bonyad3؛ Hasan Pourbabaei3؛ Mostafa Jafari4؛ Vahid Gholami2 | ||
| 1Phd Student of Gilan university, Iran | ||
| 2Assistant Prof., Faculty of Natural Resources, University of Gilan, Someesara, Iran | ||
| 3Associate Prof., Faculty of Natural Resources, University of Gilan, Someesara, Iran | ||
| 4Associate Prof., Forest Research Division, Research Institute of Forests and Rangelands, Agriculture Research, Education and Extension Organization (AREEO), Tehran, Iran | ||
| چکیده [English] | ||
| Measure the fuel load of down woody debris with changes Line intersect sampling were proposed by Brown for the first time in 1974, and were used the go/no go gauge as a means to accurately measure the fuel load wood in different classes diameter in the floor of forest. Evaluation of fuel load is critical need to reduce hazardous fuels around the world, which should be a new category to be used the management of wildfires in Iran. For the introduction and use of the go/no go gauge on the estimated fuel load of down woody in Iran forest''s, Combustible materials from the part of Gilan forestation (Loblolly pine forestation) was evaluated for the calibration. For this purpose Were compared down woody debris on the forest floor with ruler and go/no go gauge by using Line intersect sampling in the systematic random sampling method. The results show that the go/no go gauge measures too quickly and easily the forest fuel, in addition to has high efficiency in the evaluation and assessment of fuel load of down woody; so there is no significant difference in the amount of calculated fuel load at 95 percent by the go/no go gauge (5.21 t/h) and the ruler (5.02 t/h). In terms of speed measurement the results showed that the go/no go gauge can lower the more than one third the measure times, that this times will be noticeable in terms of inventory costs. | ||
| کلیدواژه‌ها [English] | ||
| wild fire, go/no go gauge, Gilan forestations, fuel load | ||
| مراجع | ||
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