Naghdi, R., Nikooy, M., Mohammadi Limaie, S., Shormage, Y. (2010). Evaluation of felling productivity in Shafarood forest (Guilan province). , 18(3), 425-417.
Ramein Naghdi; Mehrdad Nikooy; Soleyman Mohammadi Limaie; Yoosof Shormage. "Evaluation of felling productivity in Shafarood forest (Guilan province)". , 18, 3, 2010, 425-417.
Naghdi, R., Nikooy, M., Mohammadi Limaie, S., Shormage, Y. (2010). 'Evaluation of felling productivity in Shafarood forest (Guilan province)', , 18(3), pp. 425-417.
Naghdi, R., Nikooy, M., Mohammadi Limaie, S., Shormage, Y. Evaluation of felling productivity in Shafarood forest (Guilan province). , 2010; 18(3): 425-417.

Evaluation of felling productivity in Shafarood forest (Guilan province)

تحقیقات جنگل و صنوبر ایران
Article 8, Volume 18, Issue 3 - Serial Number 41, October 2010, Pages 425-417    PDF (236.8 K)
Document Type: Research article
Authors
Ramein Naghdi* 1; Mehrdad Nikooy1; Soleyman Mohammadi Limaie1; Yoosof Shormage2
1Assistant Prof., Faculty of Natural Resources, University of Guilan
2M.Sc. of Forestry, Faculty of Natural Resources, University of Guilan
Abstract
Felling as the initiation of harvesting chain-work is the first step for preparing trees to market consumption which has severe effect on the subsequent work stages. The aim of this research is to assess the productivity of manual felling and costs of felling team as well as recognizing their effective factors. In this evaluation after identifying work elements of one felling turn, 72 felling turns were time studied. Furthermore independent variables such as tree diameter at cutting stump height, distance between trees, longitudinal and latitudinal slopes were time studied in each turn. Felling time regression model is a function of independent variables such as tree diameter and distance between trees. Amount of production including delay time and without delay time were 63.48 and 83.19 m3 per hour, respectively. The cost determination model which recommended by Forests, Rangelands and Watershed Organization project work agenda was used to determine felling costs. Therefore, felling costs with delay time and without delay time were 4017 Rials per m3 (26872 Rials per tree) and 3065 Rials per m3 (20516 Rial per tree), respectively. The under cut and back cut time and technical delays formed the greatest felling element time of chain saw felling. Examination of the variation effect of the variables on time due to the variation of felling cost showed that increasing in each of the variables causes an increase in time and therefore increases felling costs.
Keywords
manual felling; Productivity; felling cost; time study
References

- ساریخانی، ن.، 1380. بهره‌برداری جنگل. انتشارات دانشگاه تهران، چاپ دوم، 776 صفحه.

ـ سبحانی، ه.، غفاریان، م. و خاکزاد رستمی، م.، 1384. بررسی میزان تولید و هزینه قطع درخت در بخش پاتم جنگل آموزشی پژوهشی خیرودکنار نوشهر. مجله منابع طبیعی ایران، 60 (2): 491-485.

- فقهی، ج.، 1368. ارزشیابی دو سیستم مکانیزه بهره‌برداری جنگل (مطالعه موردی: حوضه آبخیز شفارود). ‌پایان‌نامه کارشناسی ارشد، دانشکده منابع طبیعی، دانشگاه تهران، 135 صفحه.

- مجنونیان، ب.، 1367. بررسی محل و موقعیت بهره‌برداری در سیستم تولید جنگل. مجله منابع طبیعی ایران، 43: 112-102.

- نقدی، ‌ر.، 1383. بررسی عملکرد (تولید و هزینه) ‌اسکیدر چرخ ‌لاستیکی تیمبرجک مدل 450C در جنگلهای حوضه شفارود گیلان. مجله منابع طبیعی ایران، 57 (4): 686-675.

ـ نیکوی، م.، 1386. بهینه کردن هزینه‌های تولید و کاهش صدمات بهره‌برداری و حمل و نقل چوب، درخت و جنگل با طراحی بهره‌برداری. رساله دکتری، دانشکده منابع طبیعی، دانشگاه تهران، 186 صفحه.

- Dykstra, D.P. and Heinrich, R., 1996. FAO model code of forest harvesting practice. Food and Agriculture Organization of the United Nations, Rome. 85 p.

- Kluender, R.A. and Stokes, B.J., 1996. Felling and skidding productivity and harvesting cost in Southern Pine Forest. In: Proceedings of Certification-Environmental implications for forestry operations. September 9-11; Quebec   City, Quebec, joint conference Canadian Woodlands Forum, Canadian Pulp and Paper Association and International Union of Forest Research Organizations, 35-39.

- Lortz, D., Kluender, R., Mccoy, W., Stokes, B. and Klepac, J., 1997. Manual felling time and productivity in southern pine forests. Forest products journal, 47: 59-63.

- Martin, C.W., 1988. Soil disturbance by logging in New England-Review and management recommendations. North. J. Appl. For., 5: 30-34.

- Wang, J., long, C., Mcneel, J. and Baumgras, J., 2004. Productivity and cost of manual felling and cable skidding in central Appalachian hardwood forest. Forest products journal, 54 (12): 45-51.

Statistics
Article View: 617
PDF Download: 420


counter
Journal management system. designed by sinaweb