David Bowman_AusPlots Forests: establishing a continental-scale monitoring network in the tall eucalypt forests of Australia
AusPlots Forests Establishing a continental scale monitoring network in the tall eucalypt forests of AustraliaSam Wood, David Bowman, Jeff Foulkes, Claire Howell Terrestrial Ecosystem Research Network University of Tasmania University of Adelaide ABARES
The Starting Point• 2793 permanent inventory plots with 275,000 trees maintained by forestry agencies.• Relationships between climate variables, basal area and diameter increment.• ~24% decrease in stand basal area increment and ~17% decrease in diameter increment under A2 climate change scenarios (Prior et al. 2011). Prior, L.P., Williamson, G.D. & Bowman, D.M.J.S. (2011) Using permanent forestry plots to understand the possible effects of climate change on Australias production forest estate. Department of Agriculture, Fisheries and Forestry. Canberra.
Aim of AusPlots-Forests • Establish a continental-scale plot based monitoring network • Improves our understanding of tree growth and carbon dynamics in tall eucalypt forests in relation to macro- environmental gradients across Australia. • Provide infrastructure for regionally based forest research • Build upon existing plot networks where possible.Warren Plot: 1854 Karri Regrowth
Sampling the environmental domain• Continental and regional climatic gradients
AusPlots-Forests in brief• 40 plots of 1 hectare• In mature tall eucalypt forests of Tas,Vic,WA, NSW,Qld.• Repeat measures every 5-10 years• Co-locate with existing inventory or research plots• Target conservation reserves• Focuson forest tree diversity and dynamics and their relationship to climate and site productivity• ....but also understorey biodiversity measures, soil attributes etc.
Why Tall Eucalypt Forests? • Cannot do it all, so lets do one system really well! • Spatially restricted: logistically efficient and cost effective • Spans macro-climates. • Dominate existing Permanent Inventory Plot infrastructure. • Valued for timber, conservation, recreation, carbon storageCarey Plot: 1852 Karri Regrowth
What are we measuring? All Trees >10cm DBH First Field Campaign:100 Acacia Atherosperma Eucalyptus Nothofagus •Establish 100x100m grid, 25 subplots 80 Olearia Pomaderris Dicksonia •Location, diameter, height, species for trees 60 >10cm DBH (i.e. RAINFOR) 40 •Canopy cover using digital photography 20 •Herbarium voucher specimens and leaf samples (for genetics) for all species on plot 0 (e.g. AusPlots Rangelands) 0 20 40 60 80 100 •Soil metagenomics samples (e.g. AusPlots Rangelands) Subsequent Field Campaign: • soil characteristics, coarse woody debris, seedlings and saplings…….
The campaign rolls on……• Tasmania: Autumn 2013• Victoria: Spring 2013• NSW: Summer 2013/14• Queensland: Autumn 2014• Upload to AEKOS database. Publically available data.• Tier Two Measurements: i.e. soils, coarse woody debris, seedlings and saplings
A first step........ Other forest types Other growth stages