TY - JOUR
T1 - Restore and sequester
T2 - Estimating biomass in native Australian woodland ecosystems for their carbon-funded restoration
AU - Jonson, J. H.
AU - Freudenberger, D.
PY - 2011
Y1 - 2011
N2 - In the south-western region of Australia, allometric relationships between tree dimensional measurements and total tree biomass were developed for estimating carbon sequestered in native eucalypt woodlands. A total of 71 trees representing eight local native species from three genera were destructively sampled. Within this sample set, below ground measurements were included for 51 trees, enabling the development of allometric equations for total biomass applicable to small, medium, and large native trees. A diversity of tree dimensions were recorded and regressed against biomass, including stem diameter at 130cm (DBH), stem diameter at ground level, stem diameter at 10cm, stem diameter at 30cm, total tree height, height of canopy break and mean canopy diameter. DBH was consistently highly correlated with above ground, below ground and total biomass. However, measurements of stem diameters at 0, 10 and 30cm, and mean canopy diameter often displayed equivalent and at times greater correlation with tree biomass. Multi-species allometric equations were also developed, including 'Mallee growth form' and 'all-eucalypt' regressions. These equations were then applied to field inventory data collected from three locally dominant woodland types and eucalypt dominated environmental plantings to create robust relationships between biomass and stand basal area. This study contributes the predictive equations required to accurately quantify the carbon sequestered in native woodland ecosystems in the low rainfall region of south-western Australia.
AB - In the south-western region of Australia, allometric relationships between tree dimensional measurements and total tree biomass were developed for estimating carbon sequestered in native eucalypt woodlands. A total of 71 trees representing eight local native species from three genera were destructively sampled. Within this sample set, below ground measurements were included for 51 trees, enabling the development of allometric equations for total biomass applicable to small, medium, and large native trees. A diversity of tree dimensions were recorded and regressed against biomass, including stem diameter at 130cm (DBH), stem diameter at ground level, stem diameter at 10cm, stem diameter at 30cm, total tree height, height of canopy break and mean canopy diameter. DBH was consistently highly correlated with above ground, below ground and total biomass. However, measurements of stem diameters at 0, 10 and 30cm, and mean canopy diameter often displayed equivalent and at times greater correlation with tree biomass. Multi-species allometric equations were also developed, including 'Mallee growth form' and 'all-eucalypt' regressions. These equations were then applied to field inventory data collected from three locally dominant woodland types and eucalypt dominated environmental plantings to create robust relationships between biomass and stand basal area. This study contributes the predictive equations required to accurately quantify the carbon sequestered in native woodland ecosystems in the low rainfall region of south-western Australia.
UR - http://www.scopus.com/inward/record.url?scp=82155176244&partnerID=8YFLogxK
U2 - 10.1071/BT11018
DO - 10.1071/BT11018
M3 - Article
SN - 0067-1924
VL - 59
SP - 639
EP - 652
JO - Australian Journal of Botany
JF - Australian Journal of Botany
IS - 7
ER -