Danum Valley Rainforest Research and Training Programme Trees in proximity to canopy access locations



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Centre for Research on Environmental Systems and Statistics

_____________________________________________________________________

Danum Valley Rainforest Research and Training Programme
Trees in proximity to canopy access locations

CRES/QA/RS-CAN/1/0008/1.0


N.A. Chappell, B. Ola, M.J. Hanapi, S.A. Samat

Institute of Environmental and Natural Sciences

Lancaster University, Lancaster LA1 4YQ

United Kingdom

Commercial-in-confidence


Document Number: CRES/QA/RS-CAN/1/0008/1.0


Title: Trees in proximity to canopy access locations

(Danum Valley Rainforest Research and Training Programme)


Author(s) and

affiliation: N.A. Chappell (CRES), B. Ola, Mohd.J. Hanapi, and S.Abd. Samat (Yayasan Sabah)


Date written: August, 2000
Revised:
_____________________________________________________________________
Work carried out for the VOC-hydrology project




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Centre for Research on Environmental Systems and Statistics

Institute of Environmental and Natural Sciences

University of Lancaster

Lancaster LA1 4YQ
tel: 01524 65201 and fax: 01524 593985

N.A. Chappell, B. Ola, M.J. Hanapi, and S.A. Samat 2000. Trees in proximity to canopy access locations: Danum Valley Rainforest Research and Training Programme. CRES Technical Report CRES/QA/RS-CAN/1/0008/1.0, Lancaster University, UK.
Several trees in the vicinity of the Danum Valley Field Centre (117o48.75’ E and 5o01’ N) Sabah, Malaysian Borneo, have been equipped with wooden observation platforms at the tops of their stems. Some of these trees also have aerial walkways linking two or more platforms. Additionally, several self-supporting, observation towers have been built in the same region.
On the 15 August 2000 a survey of these canopy access locations was undertaken by Bernados Ola, Mohd Jamal bin Hanapi, Shaidih bin Abd Samat and Nick A Chappell. The principal objectives of this survey was an assessment of the genus/species of the trees (a) having branches that could be reached from the platform / walkway / tower / ladder, and (b) that might add to the local, volatile organic compound (VOC) levels in the canopy about the platform / walkway / tower. This assessment is required for the establishment of a new research project on the link between VOC emissions and Hydrology (Owen, James, Sinun, Bidin and Chappell 2000/2001 ' Effect of land-management and habitat water status on the volatile organic compound (VOC) emissions from tropical forest canopies'). Tree identification was undertaken by Mr Bernados Ola.
\c-access.doc
For colour photographs and updates, see http://www.es.lancs.ac.uk/rssea/canopy.htm

Canopy platform, Nature Trail (virgin forest)
Dimoocarpus longan (within 2 m reach)

trees with branches in the

vicinity of the 60 ft platform

(no branch access from top platform) 5.1 m  Polyalthia spp.

(small tree, cannot reach)

6.1 m
3 m  Shorea johorensis (no branch access)

  (ladder)

Shorea johorensis

(cannot reach)

6.6 m (distance between trunk of trees)

Xanthophyllum (can reach from platform)





Figure 1. View down access ladder, Nature Trail platform
Observation tower, Nature Trail (virgin forest)

Walsura spp (large tree, cannot reach)

6.3 m
Memecylon spp (can reach)

3.3 m


Archidendron  3.6 m

jiringa (can reach)

2.4 m  8.7 m



ArchidendronArchidendron

jiringa (can reach) jiringa (large tree, can reach)

3.6 m



Archidendron

jiringa (can reach)

(NB Can reach all trees from upper level, except Walsura spp)



Canopy platform, W6 (virgin forest)

 


Koompassia excelsa

(no branch access)

7.3 m 9.1 m
15.2 m

 


Aporusa spp Eugenia spp

(cannot reach from platform) (big tree; branch 6 m from

ladder, half way up)



Shorea johorensis

(cannot reach)

Figure 2. Canopy platform at W6
Canopy platform, C88 (logged forest)

Parashorea

mellaanonan Shorea oleasa
 

5.4 m 5.6 m




Mallotus spp 

Sindora irpicina

2.8 m (branches only 2-3 m away from ladder)

0.3 m 

 Koompassia excelsa (no branch access)

4.7 m

4.3 m 4.3 m





Hopea nervosa  

(branches far) Xanthophyllum spp Alangium ebenaceum

5.1 m



Polyalthia spp



Canopy platforms / small walkway, FACE fire lookout (logged forest)


Lithocarpus spp

(branches reach to centre of walkway)


Lithocarpus spp Shorea spp 

 (small tree upto first

platform, 10m)


4.7 m

4.62 m 5.7 m

Shorea pavifolia

(small tree by ladder) 2.25 m



Shorea pilosa

Shorea multiflora  = = 5.6 m walkway = = 1.45 m

1.8 m Shorea spp



Lithocarpus spp

(good access from both first



and second platforms)
(NB Planks on walkway need repairing; nails !)

Shorea spp (a long distance from tree)




Figure 3. FACE fire lookout platforms and small walkway



Figure 4. Small walkway at FACE fire lookout
Canopy walkway, BRL (virgin)

Aglaia spp


Ryparosa spp (over first platform)
 3.9 m



Eugenia spp   Barrringtonia spp (over first platform)

 2-3 m  1.5 m

Fordia spp  1 m = = =  Shorea johorensis

(very small tree 

next to first platform) 

 3.7 m along walkway

  Barrringtonia spp (bigger tree)

  Archidendron jiringa





10.4 m along walkway 

Parashorea tomentella  2 m 

(+ lianas; good access) 





17.8 m along walkway 



Parashorea tomentella  3 m 

(+ 2x spp lianas)  … continued






Shorea johorensis

25.1 m along walkway  (no branch access)

Blumeodendron tokbrai (good access)   3 m 

28.8 m along walkway 



Paranephelium spp (good access)   (NB the 3 left-hand trees extend branches

29.4 m along walkway  to right-hand side of walkway also)



Diospyros spp (good access)  



 38.8 m along walkway



Teijsmanniodendron pteropodum   = = =

(good access) Shorea johorensis

= = =





38.2 m along walkway 



Eugenia app  6 m (2 m to any leaves !) 

43.5 m along walkway 



Shorea johorensis  7 m (2 m to any leaves !)

29.4 m along walkway  to right-hand side of walkway also)





65.4 m along walkway (from last ShoreaPentace laxiflora (good access)

johorensis platform)  6 m 

 


Shorea superba (no access) Koompassia excelsa


Figure 5. Last walkway section towards last platform, BRL


Figure 6. Last walkway section towards middle platform (from last platform), BRL

Observation tower, C89 (logged forest)

not surveyed



Observation tower, Bukit Atur (logged forest)

not surveyed




Figure 7. Observation tower, Bukit Atur



Figure 9. Bukit Atur prior to observation tower construction. Gunung Danum is the double peaked hill on the horizon



Figure 10. Bukit Atur prior to observation tower construction (old atur building shown)
NAC 31/8/00

Document Number: CRES/QA/RS-CAN/1/0008/1.0


Title: Trees in proximity to canopy access locations

(Danum Valley Rainforest Research and Training Programme)


_____________________________________________________________________

Distribution List




NAME AND AFFILIATION

Dr Nick A. Chappell (CRES, Lancaster University)



Mr Bernados Ola (Yayasan Sabah)
Dr Waidi Sinun (Secretary, Danum Valley Management Committee)
Dr Sue Owen, Prof Nick Hewitt and Dr Rob Mckenzie (Lancaster University)
The Royal Society S.E. Asia committee (c/o Chairman)



CHECKED BY: (Senior Officer)

DATE:





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