CCFG Daylight Conference 2009
Understanding Daylight in the context of Continuous Cover Forestry
29 September 2009
Westonbirt Arboretum, Gloucestershire
Overview
This was the first Scientific Meeting organised by the Continuous Cover Forestry Group. Rodney Helliwell, a founder member of both Pro Silva and the Continuous Cover Forestry Group, set out the issues followed by illuminating presentations by leading scientists in the fields of crop ecology, plant science and remote sensing and environmental monitoring, Paul Burgess, Maurizio Mencuccini and Mathias Disney. The afternoon sessions consisted of field demonstrations with the use of equipment generously provided by Skye Instruments and Delta-T Services showing how light varied under the canopy of individual tees and woodland cover, and with passing clouds. This was followed by discussion and an exploration of the need for further research led by two leading practitioners, Andy Poore and Graham Gill.
Phil Morgan, CCFG Chairman summed up the meeting: ''Continuous cover practitioners need confidence in practicing CCF in Britain, so a clear understanding of the role of light in tree growth is needed to provide them with a solid foundation to manage a valuable forest resource".
Transcripts
Transcripts of the talks and discussion sessions are available below as PDF documents:
| File: | File Type: | Size: | Link: |
| Daylight Conference Programme | [93KB] | link | Chairman's Welcome | [74KB] | link |
| What are the main factors in determining the effectiveness of daylight in woodlands?
Rodney Helliwell (Consultant) |
[288KB] | link | |
| Variation in light intensity at different latitudes and seasons, effects of cloud cover, and the amounts of direct and diffuse light
Paul Burgess (Cranfield University) |
[901KB] | link | |
| Amounts of light required for photosynthesis, and interaction with other abiotic and biotic factors
Maurizio Mencuccini (Edinburgh University) |
[2.5MB] | link | |
| Field assessment and estimation of light under various canopy conditions and in gaps
Mathias Disney (University College, London) |
[2.3MB] | link | |
| Results of Field Demonstrations | [68KB] | link | |
| Open Discussion
Chaired by Andy Poore (Consultant) |
[146KB] | link | |
| Summing up: review of need for further studies, publications and training
Graham Gill (Forest Enterprise, Kielder) |
[97KB] | link |
*To download the files, right-click on the above links and choose "Save As" to download.
Sponsors
We are grateful for the generous support of:
 |
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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