Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/20116
Title: Growth and carbon sequestration by remnant 'Eucalyptus camaldulensis' woodlands in semi-arid Australia during La Nina conditions
Contributor(s): Smith, Rhiannon  (author)orcid ; Renton, Michael (author); Reid, Nick  (author)orcid 
Publication Date: 2017
DOI: 10.1016/j.agrformet.2016.10.014
Handle Link: https://hdl.handle.net/1959.11/20116
Abstract: Recent research has shown the value of native vegetation in semi-arid regions for sequestering large amounts of carbon (C), particularly in La Ni˜na years. In 2011, above-average rainfall led to significant vegetation growth and a 'greening' of inland Australia. During the period 2008-2012, we measured aboveground growth rates, biomass accumulation and C sequestration by river red gums ('Eucalyptus camaldulensis'), a commonly occurring tree species in riparian and floodplain ecosystems in semi-arid inland Australia. We measured trees representing the full range of ages, stand densities, canopy conditions and landscape positions. Our data suggest that river red gums can grow up to 6 cm (diameter at 1.3m aboveground) per year, with most trees growing at a rate of <3 cm per year and sequestering on average, just over 2.5t C ha-¹yr-¹ in aboveground woody biomass during high-rainfall and flood conditions. In general, trees in riparian zones grew faster than trees on the floodplain and trees in dense stands grew more slowly than widely-spaced trees. Sites with high aboveground woody biomass at the start of the study had the highest growth and C sequestration rates, indicating that those sites had not reached their C carrying capacity. Healthy crown condition was associated with faster growth in trunk diameter. While stem increment decreased with tree size, C sequestration increased in aboveground woody biomass, illustrating the importance of mature and old-growth trees as C sinks. This study highlights the contribution of semi-arid riparian woodlands for sequestering large amounts of C in aboveground woody biomass during above-average rainfall periods and the need to factor this important sink into global C budgets.
Publication Type: Journal Article
Source of Publication: Agricultural and Forest Meteorology, v.232, p. 704-710
Publisher: Elsevier BV
Place of Publication: Netherlands
ISSN: 1873-2240
0168-1923
Fields of Research (FoR) 2008: 050202 Conservation and Biodiversity
050209 Natural Resource Management
Fields of Research (FoR) 2020: 410401 Conservation and biodiversity
410406 Natural resource management
Socio-Economic Objective (SEO) 2008: 960907 Forest and Woodlands Water Management
961305 Remnant Vegetation and Protected Conservation Areas in Farmland, Arable Cropland and Permanent Cropland Environments
Socio-Economic Objective (SEO) 2020: 180607 Terrestrial erosion
180699 Terrestrial systems and management not elsewhere classified
180604 Rehabilitation or conservation of terrestrial environments
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article

Files in This Item:
2 files
File Description SizeFormat 
Show full item record

SCOPUSTM   
Citations

11
checked on Mar 9, 2024

Page view(s)

2,562
checked on Jan 14, 2024
Google Media

Google ScholarTM

Check

Altmetric


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.