| Date: | 12 – 13 May 2010 |
| Location: | Stourton Village Hall, Wiltshire |
| Description: | CCFG – Timber Harvesting Workshop with Professor Hanns Höfle ‘Bringing regularity to irregular silviculture’. |
| Date: | 12 – 13 May 2010 |
| Location: | Stourton Village Hall, Wiltshire |
| Description: | CCFG – Timber Harvesting Workshop with Professor Hanns Höfle ‘Bringing regularity to irregular silviculture’. |
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CCFG Timber Harvesting Workshop 2010
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We were fortunate in having Professor Hanns Höfle to run this 2 day workshop which included indoor 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.
Sadly, Professor Hanns Höfle died in June 2014 whilst trekking in the mountains of Georgia. He was an internationally respected forester and will be greatly missed.
Copies of the Prof. Hanns Höfle’s presentations at the workshop can be viewed or downloaded as PDF files below.
We would like to thank Canopy Land Use and Selectfor for arranging this seminar. Our thanks also to Sir John Elliot Gardiner and Nicholas and Henry Hoare for allowing us to use their woodlands for the practical work, and to P.J. Cleary (buyers of Hurley Ash) for their generous support.
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| 1. Extraction Racks | |||
Download/view whole file: or Download/view in sections by clicking the links below: |
7.46 MB |
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590 KB |
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2.83 MB |
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1.41 MB |
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145 KB |
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36 KB |
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1.08 MB |
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41 KB |
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49 KB |
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2. Harvesting Systems
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3.43 MB |
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3. Costs
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1.42 MB |
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*To download the files, right-click on the above links and choose “Save As” to download.
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| Date: | 29 September 2009 |
| Location: | Westonbirt Arboretum |
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| Description: |
CCFG Scientific Conference. |
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Westonbirt Arboretum, Gloucestershire
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Understanding daylight and the manner in which it affects the growth of trees is not a simple matter. The way in which people perceive the subject is often somewhat vague, and knowledge of the basics can be rather patchy. A better understanding of daylight should put us in a better position to understand what is happening in the forest and how our actions might affect this, particularly when aiming for a low impact, CCF regime. Light is one of the basic tools in the manager’s portfolio, and it is perhaps comforting to know that there will always be a need for experienced practitioners, who can interpret what they see on the ground.
This one day seminar was designed to give practitioners a better understanding of daylight and its role in regeneration and the growth of healthy forests, and included an exploration of technologies which are used to measure daylight
In the morning there was a plenary session and in the afternoon there were field demonstrations using equipment provided by Skye Instruments and Delta-T Services.
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| Daylight Conference Programme | [93 KB] | link | |
| Chairman’s Welcome | PDF |
[74 KB] | link |
| Review of the Seminar | [365 KB] | link | |
What are the main factors in determining the effectiveness of daylight in woodlands?
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[288 KB] | link | |
Variation in light intensity at different latitudes and seasons, effects of cloud cover, and the amounts of direct and diffuse light
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[901 KB] | link | |
Amounts of light required for photosynthesis, and interaction with other abiotic and biotic factors
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[2.5 MB] | link | |
Field assessment and estimation of light under various canopy conditions and in gaps
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[2.3 MB] | link | |
Results of Field Demonstrations |
[68 KB] | link | |
Open Discussion
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[146 KB] | link | |
Summing up: review of need for further studies, publications and training
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[97 KB] | link |
*To download the files, right-click on the above links and choose “Save As” to download.
We are grateful for the generous support of:
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| White Fir, Sierra Nevada. Figure from Jupp et al. (2009) Estimating forest LAI profiles and structural parameters using a ground-based laser called Echidna, Tree Physiology 29(2) 171-181 (as shown in Mathias Disney’s talk) |
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Llanidloes, Wales
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This study day focused on silvicultural systems that have application in Wales, and more generally in woodlands of the UK. Policy and social dimensions of new technical developments in silviculture were also highlighted.
The programme included presentations by leading experts in silviculture, forest policy and social science.
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Workshop Flyer |
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269 KB |
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Workshop Programme |
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56 KB |
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Gary Kerr (Forest Research) |
MS PowerPoint |
3.7 MB |
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Arne Pommerening (Bangor University) |
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5 MB |
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Anna Lawrence (Forest Research) |
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Please note that these downloads are provided for CCFG members. This material is not to be distributed without permission of the authors/contributors. Please seek advice if you are uncertain about appropriate usage.
CCFG would like to acknowledge Jim Ralph for organising this event. Thanks, Jim!
If you would like any further information, please contact the CCFG Administrator: administrator@ccfg.org.uk