Estimating regional terrestrial carbon fluxes for the Australian continent using a multiple-constraint approach. I. Using remotely sensed data and ecological observations of net primary production
Open Access
- 1 April 2003
- journal article
- Published by Stockholm University Press in Tellus B: Chemical and Physical Meteorology
- Vol. 55 (2), 270-289
- https://doi.org/10.1034/j.1600-0889.2003.00031.x
Abstract
Bayesian synthesis inversion was applied to in-situ hourly CO2 concentrations measured at Cape Grim, Australia to refine the estimates of monthly mean gross photosynthesis, total ecosystem respiration and net ecosystem production by the CSIRO Biospheric Model (CBM) for eight regions in Australia for the period 1990–1998. It was found that in-situ measurements of hourly CO2concentrations at Cape Grim could provide significant information about the carbon fluxes from Tasmania, central-south and south-east Australia only. The process-based model, CBM, overestimates the ecosystem respiration during summer in south-east Australia, but underestimates ecosystem respiration in Tasmania and central-south Australia. It was concluded that the respiration submodel of CBM should be improved to account for the seasonal variation in the plant and soil respiration parameters in south-east Australia. For the whole period of 1990 to 1998, the mean net ecosystem productions of terrestrial ecosystems in Tasmania, central-south Australia and south-east Australia were estimated to be, respectively, 6 ± 10, 7 ± 27 and −64 ± 18 Mt C yr−1. The yearly uptake rate (being negative) of the terrestrial ecosystems in south-east Australia was smallest (−42 ± 55 Mt C yr−1) in 1998 and largest (−91 ± 52 Mt C yr−1) in 1992. DOI: 10.1034/j.1600-0889.2003.00030.xKeywords
This publication has 39 references indexed in Scilit:
- Gap filling strategies for defensible annual sums of net ecosystem exchangeAgricultural and Forest Meteorology, 2001
- Effects of leaf age on internal CO2 transfer conductance and photosynthesis in tree species having different types of shoot phenologyFunctional Plant Biology, 2001
- European greenhouse gas emissions estimated from continuous atmospheric measurements and radon 222 at Mace Head, IrelandJournal of Geophysical Research: Atmospheres, 2000
- CenW, a forest growth model with linked carbon, energy, nutrient and water cyclesEcological Modelling, 1999
- Comparing global models of terrestrial net primary productivity (NPP): overview and key resultsGlobal Change Biology, 1999
- Primary Production of the Biosphere: Integrating Terrestrial and Oceanic ComponentsScience, 1998
- The derivation of the green vegetation fraction from NOAA/AVHRR data for use in numerical weather prediction modelsInternational Journal of Remote Sensing, 1998
- Global net primary production: Combining ecology and remote sensingRemote Sensing of Environment, 1995
- Productivity and compensatory responses of yellow-poplar trees in elevated C02Nature, 1992
- Modelling of Photosynthetic Response to Environmental ConditionsPublished by Springer Nature ,1982