Beringer, J. and Hutley, L. B. and McHugh, I. and Arndt, S. K. and Campbell, D. and Cleugh, H. A. and Cleverly, J. and De Dios, V. R. and Eamus, D. and Evans, B. and Ewenz, C. and Grace, P. and Griebel, A. and Haverd, V. and Hinko Najera, N. and Huete, A. and Isaac, P. and Kanniah, K. and Leuning, R. and Liddell, M. J. and MacFarlane, C. and Meyer, W. and Moore, C. and Pendall, E. and Phillips, A. and Phillips, R. L. and Prober, S. M. and Restrepo Coupe, N. and Rutledge, S. and Schroder, I. and Silberstein, R. and Southall, P. and Sun Yee, M. and Tapper, N. J. and Van Gorsel, E. and Vote, C. and Walker, J. and Wardlaw, T. (2016) An introduction to the Australian and New Zealand flux tower network OzFlux. Biogeosciences, 13 (21). 5895 5916. ISSN 1726-4170
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Abstract
OzFlux is the regional Australian and New Zealand flux tower network that aims to provide a continental-scale national research facility to monitor and assess trends, and improve predictions, of Australia's terrestrial biosphere and climate. This paper describes the evolution, design, and current status of OzFlux as well as provides an overview of data processing. We analyse measurements from all sites within the Australian portion of the OzFlux network and two sites from New Zealand. The response of the Australian biomes to climate was largely consistent with global studies except that Australian systems had a lower ecosystem water-use efficiency. Australian semi-arid/arid ecosystems are important because of their huge extent (70 %) and they have evolved with common moisture limitations. We also found that Australian ecosystems had a similar radiation-use efficiency per unit leaf area compared to global values that indicates a convergence toward a similar biochemical efficiency. The two New Zealand sites represented extremes in productivity for a moist temperate climate zone, with the grazed dairy farm site having the highest GPP of any OzFlux site (2620 gC m-2 yr-1) and the natural raised peat bog site having a very low GPP (820 gC m-2 yr-1). The paper discusses the utility of the flux data and the synergies between flux, remote sensing, and modelling. Lastly, the paper looks ahead at the future direction of the network and concludes that there has been a substantial contribution by OzFlux, and considerable opportunities remain to further advance our understanding of ecosystem response to disturbances, including drought, fire, land-use and land-cover change, land management, and climate change, which are relevant both nationally and internationally. It is suggested that a synergistic approach is required to address all of the spatial, ecological, human, and cultural challenges of managing the delicately balanced ecosystems in Australasia.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | biome, data processing, ecosystem dynamics, ecosystem response, environmental disturbance, flux measurement, leaf area, net ecosystem exchange, peatland, prediction, primary production, remote sensing, research method, water use efficiency, Australia, New Zealand |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Civil Engineering |
| ID Code: | 71787 |
| Deposited By: | Fazli Masari |
| Deposited On: | 15 Nov 2017 03:02 |
| Last Modified: | 15 Nov 2017 03:02 |
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