Productivity and Cost of Integrated Harvesting of Wood Chips and Sawlogs in Stand Conversion Operations
المؤلفون المشاركون
المصدر
International Journal of Forestry Research
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-03-22
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
This study evaluated the operational performance and cost of an integrated harvesting system that harvested sawlogs and biomass (i.e., energy wood chips) in stand conversion clearcut operations.
Douglas-fir (Pseudotsuga menziesii) trees were processed into sawlogs while whole trees of tanoak (Lithocarpus densiflorus), and sub-merchantable materials (small-diameter trees, tops and limbs) were fed directly into a chipper to produce biomass for energy production.
A standard time study method was used to determine productivity and costs.
Over 26 working days, the integrated system produced 1,316 bone-dry metric tonnes (BDTs) of sawlogs, and 5,415.89 BDT of chips, with an average moisture content of 43.2%.
Using the joint products allocation costing method, the costs of the integrated system were $29.87/BDT for biomass and $4.26/BDT for sawlogs.
Chipping utilization was as low as 41%, directly affecting production and cost of chipping operation.
Single-lane, dirt, spur roads were the most costly road type to transport whole trees to a centralized processing site: transportation costs for biomass and sawlogs were increased by $0.08/BDT and $0.02/BDT, respectively, for every 50 meter increase in traveling distance.
Diesel fuel price could raise total system cost for each product by $0.78/BDT and $0.08/BDT for each $0.10/liter increase.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Harrill, Hunter& Han, Han-Sup. 2012. Productivity and Cost of Integrated Harvesting of Wood Chips and Sawlogs in Stand Conversion Operations. International Journal of Forestry Research،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-505981
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Harrill, Hunter& Han, Han-Sup. Productivity and Cost of Integrated Harvesting of Wood Chips and Sawlogs in Stand Conversion Operations. International Journal of Forestry Research No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-505981
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Harrill, Hunter& Han, Han-Sup. Productivity and Cost of Integrated Harvesting of Wood Chips and Sawlogs in Stand Conversion Operations. International Journal of Forestry Research. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-505981
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-505981
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر