Tree height integrated into pantropical forest biomass estimates
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
09/09/2013
09/09/2013
2012
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| Resumo |
Aboveground tropical tree biomass and carbon storage estimates commonly ignore tree height (H). We estimate the effect of incorporating H on tropics-wide forest biomass estimates in 327 plots across four continents using 42 656 H and diameter measurements and harvested trees from 20 sites to answer the following questions: 1. What is the best H-model form and geographic unit to include in biomass models to minimise site-level uncertainty in estimates of destructive biomass? 2. To what extent does including H estimates derived in (1) reduce uncertainty in biomass estimates across all 327 plots? 3. What effect does accounting for H have on plot- and continental-scale forest biomass estimates? The mean relative error in biomass estimates of destructively harvested trees when including H (mean 0.06), was half that when excluding H (mean 0.13). Power- and Weibull-H models provided the greatest reduction in uncertainty, with regional Weibull-H models preferred because they reduce uncertainty in smaller-diameter classes (< 40 cm D) that store about one-third of biomass per hectare in most forests. Propagating the relationships from destructively harvested tree biomass to each of the 327 plots from across the tropics shows that including H reduces errors from 41.8 Mg ha(-1) (range 6.6 to 112.4) to 8.0 Mg ha(-1) (-2.5 to 23.0). NERC NERC Henrietta Hutton Grant (RGSIBG) Henrietta Hutton Grant (RGS-IBG) European Research Council European Research Council Royal Society University Research Fellowship Royal Society University Research Fellowship NERC New Investigator Award (AfriTRON) NERC New Investigator Award (AfriTRON) NERC AMAZONICA NERC AMAZONICA EScFund grant of the Malaysian Ministry of Science, Technology and Innovation (MOSTI) EScFund grant of the Malaysian Ministry of Science, Technology and Innovation (MOSTI) Tropenbos International Tropenbos International European Commission European Commission Largescale Biosphere Atmosphere Experiment in Amazonia (LBA) under leadership of the Brazilian Ministry of Science and Technology (MCT) Large-scale Biosphere Atmosphere Experiment in Amazonia (LBA) under leadership of the Brazilian Ministry of Science and Technology (MCT) PELDCNPq PELD-CNPq [Nr. 558069/2009-6] PROCAD-CAPES PROCAD/CAPES Brazilian National Council for Scientific and Technological Development (CNPq) Brazilian National Council for Scientific and Technological Development (CNPq) Tropical Ecology Assessment and Monitoring (TEAM) Network Tropical Ecology Assessment and Monitoring (TEAM) Network Smithsonian Institution Smithsonian Institution Wildlife Conservation Society Wildlife Conservation Society Gordon and Betty Moore Foundation Gordon and Betty Moore Foundation |
| Identificador |
BIOGEOSCIENCES, GOTTINGEN, v. 9, n. 8, supl. 1, Part 3, pp. 3381-3403, APR, 2012 1726-4170 http://www.producao.usp.br/handle/BDPI/33243 10.5194/bg-9-3381-2012 |
| Idioma(s) |
eng |
| Publicador |
COPERNICUS GESELLSCHAFT MBH GOTTINGEN |
| Relação |
BIOGEOSCIENCES |
| Direitos |
openAccess Copyright COPERNICUS GESELLSCHAFT MBH |
| Palavras-Chave | #TROPICAL RAIN-FOREST #ABOVEGROUND LIVE BIOMASS #NET PRIMARY PRODUCTION #LAND-USE CHANGE #WOOD DENSITY #AMAZONIAN FORESTS #CARBON STOCKS #ALLOMETRIC EQUATIONS #NEOTROPICAL FOREST #SECONDARY FORESTS #ECOLOGY #GEOSCIENCES, MULTIDISCIPLINARY |
| Tipo |
article original article publishedVersion |
