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1 | #TropiCon20
Just as the surface area (SA) of your lungs controls oxygen uptake, so biological surfaces control many processes. Tree woody SA controls e.g. woody respiration. Since measuring SA is hard, especially for adult trees, we don't know how much woody SA trees have.
Just as the surface area (SA) of your lungs controls oxygen uptake, so biological surfaces control many processes. Tree woody SA controls e.g. woody respiration. Since measuring SA is hard, especially for adult trees, we don't know how much woody SA trees have.
2 | #TropiCon20
We use terrestrial laser scanning (TLS) to measure woody SA of >1000 complete trop + temp trees to build an allometry. Closeup branch meas. and scans validate the twiggy bits of the crowns. We compare with Chambers' 2004 allometry.
We use terrestrial laser scanning (TLS) to measure woody SA of >1000 complete trop + temp trees to build an allometry. Closeup branch meas. and scans validate the twiggy bits of the crowns. We compare with Chambers' 2004 allometry.
3 | #TropiCon20
True SA is larger than previously estimated. ~20% at small sizes (30cm DBH), ~50% for larger trees (1m DBH). For 1ha of temperate UK forest, total SA from TLS >50% larger than older estimates. Where is this "extra" SA coming from?
True SA is larger than previously estimated. ~20% at small sizes (30cm DBH), ~50% for larger trees (1m DBH). For 1ha of temperate UK forest, total SA from TLS >50% larger than older estimates. Where is this "extra" SA coming from?
4 | #TropiCon20 |
Small distal branch sections hold disproportionate SA. An inflection is apparent at ~7cm → shift from structural to light foraging function of woody architecture? Validation ongoing.
Collabs pt1: @ymalhi @mathiasdisney @kungphil @kimcalders @LP_Bentley @pwmeir
Small distal branch sections hold disproportionate SA. An inflection is apparent at ~7cm → shift from structural to light foraging function of woody architecture? Validation ongoing.
Collabs pt1: @ymalhi @mathiasdisney @kungphil @kimcalders @LP_Bentley @pwmeir
5 | #TropiCon20
Summary:
1. Tree woody SA 20-50+% > previous est.
2. Small branches important.
3. Big implications 4 function, e.g carbon budgets, including scaling respiration
Collabs pt2: @M_Herold_WUR @bjenquist @InverseTampere @BoniVicari @chinolaulima A. Burt K. Walker
Summary:
1. Tree woody SA 20-50+% > previous est.
2. Small branches important.
3. Big implications 4 function, e.g carbon budgets, including scaling respiration
Collabs pt2: @M_Herold_WUR @bjenquist @InverseTampere @BoniVicari @chinolaulima A. Burt K. Walker
