CCFG Timber Harvesting Workshop 2010

Presented by Professor Dr. Hanns Höfle

Wed 12th & Thurs 13th May

Stourton Village Hall, Wiltshire

Overview

We were fortunate in having Professor Hanns Höfle to run this 2 day workshop which included presentations and practical field visits to Fontmell Hill Estate, Stourhead Western Estate and Melbury Estate.

Prof. Hanns Höfle holds an MSc and a PhD in Forestry from the University of Freiburg, and a PhD from the Swiss Federal Institute of Technology in Zurich, and the University of Göttingen. In addition to his distinguished academic career he has considerable practical experience which includes managing the central machine shop of the State Forest Service of Lower Saxony and serving as a Forest District Officer. He acted as chairman of the Joint FAO/ECE/ILO Committee on Forest Technology, Management and Training from 1998 to 2004.

Copies of the Prof. Hanns Höfle's presentations can be viewed or downloaded as PDF files below.

Downloads

File		size	link
1. Extraction Racks
or	Download/view whole file: Download/view in sections:	7.46 mb	link
The situation in Germany (pp.2-6)		590 kb	link
The role of silvicultural concepts (pp.8-14)		2.83 mb	link
Reasons for extraction racks: objectives, effect on soils, effect on growth and yield, negative effects (pp.15-37)		1.57 mb	link
Planning, marking and documentation of extraction racks: stand stability, dimension and alignment of ER, what to do with old ones, planning and marking, documentation (pp.38-62)		1.41 mb	link
Use at time of harvesting (pp.63-69)		145 kb	link
Contracts between forest enterprise and contractors (p.70)		36 kb	link
Maintenance and rehabilitation (pp.71-74)		1.08 mb	link
Reducing soil damage during harvesting (pp.75-76)		41 kb	link
Summary (pp.77-79)		49 kb	link
2. Harvesting Systems Objectives and choice of harvesting systems (pp.2-8) Target diameter harvesting (pp.9-11) Thinning (pp.12-13) Potential harvesting systems: overview (p14) Motor-manual systems, flat terrain & steep terrain (pp.15-44) Contracts between forest enterprise and contractors (p70) Motor-manual systems, flat terrain & steep terrain (pp.15-44) Fully mechanized systems (pp.45-65) What to do with underplanting or advance planting (p.66) Directional felling (pp.68-70) Marking trees (pp.71-74)		3.43 mb	link
3. Costs General remarks (pp.2-6) Fully mechanized harvesting systems (pp.7-11) Motor-manual harvesting systems (pp.12-14) Skidding (pp.15-18) Other costs (pp.19-21)		1.42 mb	link

*To download the files, right-click on the above links and choose "Save As" to download.

Thanks

We would like to thank Sir John Elliot Gardiner and Nicholas and Henry Hoare for allowing us to use their woodlands for the practical work, P.J. Cleary for their generous support, and Canopy Landuse and Selectfor for setting up the seminar.