Thursday, 17 November 2016

Comparative analyses on the cycle time, productivity, and cost between commercial thinning and clear-cutting operations in Nasu-machi Forest Owners’ Co-operative, Tochigi Prefecture, Japan

Published Date
Volume 21, Issue 2pp 99–104

Short Communication
DOI: 10.1007/s10310-015-0518-x

Cite this article as: 
Mizuniwa, Y., Nakahata, C. & Aruga, K. J For Res (2016) 21: 99. doi:10.1007/s10310-015-0518-x

Author
  • Yoshiko Mizuniwa
  • Chikara Nakahata
  • Kazuhiro Aruga
Abstract

This study investigates clear-cutting operations on moderately and gently sloping sites. Cycle times, productivities, and costs of those operations are analyzed and compared with those of commercial thinning operations, to enable logging contractors to easily find trends of those three variables. Felling cycle times of clear-cutting were lower than those of commercial thinning operations. Processing cycle times of clear-cutting on the gently sloping site were lower than those of clear-cutting on the moderately sloping site and commercial thinning. However, processing cycle times of clear-cutting on the moderately sloping site were similar to those of commercial thinning. Forwarding cycle times of clear-cutting on the moderately sloping site were the lowest among the estimated forwarding cycle times. Costs of operation systems were the lowest with clear-cutting on the gently sloping site, followed by clear-cutting on the moderately sloping site, and then commercial thinning with mechanized and current operation systems according to forwarding distance, with extracted volume 0.5 m3/stem. Costs of the current thinning operation system were less than those with a mechanized thinning system below extracted volume 0.3 m3/stem, because of smaller machinery expenses.

References 

  1. Forestry Agency, The Ministry of Agriculture, Forestry and Fisheries of Japan (2013) Annual report on trends in forest and forestry. Fiscal year 2012 (summary), Tokyo
  2. Funaki T, Sugihara M (2012) Logging operation systems and the productivity for final cutting in Sugi artificial forest. Bull Shimane Pref Mount Region Res Center 8:129–132 (in Japanese)Google Scholar
  3. Ishikawa T, Tsujibata T, Matsushita A, Itaya A, Hamamoto K, Tsujibata T (2008) Operation analysis and improvement of a logging system using high-performance forestry machines in a mature forest. J Jpn For Eng Soc 23:53–62 (in Japanese with English summary)Google Scholar
  4. Mizuniwa Y, Aruga K, Nakahata C (2014) An analysis on the productivity and cost for clear cutting in Nasu-machi Forest Owners’ Co-operative. Kanto For Res 65:197–200 (in Japanese with English summary)Google Scholar
  5. Mizuniwa Y, Uemura R, Aruga K, Nakahata C (2015) Examining the profitability of clear cutting operations in Nasu Forest Owners’ Co-operative, Tochigi Prefecture. Bull Utsunomiya Univ For 51:9–18 (in Japanese with English summary)Google Scholar
  6. Murakami A, Ito K, Saito M, Aruga K, Tasaka T (2011) Extraction of production forests for sustainable forest management based on economic balances in the Kanuma area of Tochigi Prefecture. J For Plann 10:245–254Google Scholar
  7. Nakahata C, Aruga K, Saito M, Ito K, Murakami A, Kanetsuki K, Maeda Y (2010) Improvement on operational efficiencies and costs of extracting thinned woods using a processor and a forwarder in Nasunogahara area: based on analyses of current operations. Bull Utsunomiya Univ For 46:19–25 (in Japanese with English summary)Google Scholar
  8. Nakahata C, Aruga K, Takei Y, Yamaguchi R, Ito K, Murakami A, Saito M, Tasaka T, Kanetsuki K (2011) Improvement on operational efficiencies and costs of extracting thinned woods using a processor and a forwarder in Nasunogahara area: based on comparative analyses of current operations and mechanized operations. Bull Utsunomiya Univ For 47:27–34 (in Japanese with English summary)Google Scholar
  9. Nakahata C, Aruga K, Takei Y, Yamaguchi R, Saito M, Kanetsuki K (2013) Examining the optimum extraction rate of extracting thinned woods in Nasunogahara area. J Jpn For Eng Soc 28:17–28 (in Japanese with English summary)Google Scholar
  10. Sawaguchi I, Sasaki T, Tatsukawa S, Takahashi T, Kikuchi T, Sasaki K (2009) Labor productivity and costs of thinning with a vehicle logging system based on hyper-density forest-road-networks. Bull Iwate Univ For 40:119–135 (in Japanese)Google Scholar
  11. Uusitalo J (2010) Introduction to forest operations and technology. JVP Forest Systems Oy, HameenlinnaGoogle Scholar
  12. Visser R, Spinelli R (2012) Determining the shape of the productivity function for mechanized felling and felling-processing. J For Res 17:397–402CrossRefGoogle Scholar
  13. Yano K (2013) Approach for the forestry revitalization of the Tochigi Prefecture northern district. J Jpn For Eng Soc 28:59–65 (in Japanese)Google Scholar

For further details log on website :
http://link.springer.com/article/10.1007/s10310-016-0519-4

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