Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.agrformet.2016.10.014 |
Growth and carbon sequestration by remnant Eucalyptus camaldulensis woodlands in semi-arid Australia during La Nina conditions | |
Smith, Rhiannon1; Renton, Michael2; Reid, Nick1 | |
通讯作者 | Smith, Rhiannon |
来源期刊 | AGRICULTURAL AND FOREST METEOROLOGY
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ISSN | 0168-1923 |
EISSN | 1873-2240 |
出版年 | 2017 |
卷号 | 232页码:704-710 |
英文摘要 | Recent research has shown the value of native vegetation in semi-arid regions for sequestering large amounts of carbon (C), particularly in La Nina 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 1.3 m aboveground) per year, with most trees growing at a rate of <3 cm per year and sequestering on average, just over 2.5 t Cha(-1)yr(-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. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Biomass accumulation Floodplain Old-growth Riparian River red gum |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000389089800058 |
WOS关键词 | RIVER RED GUMS ; WATER ; FORESTS ; REQUIREMENTS ; GROUNDWATER ; ECOSYSTEMS ; MANAGEMENT ; VEGETATION ; FLUXES ; VARIABILITY |
WOS类目 | Agronomy ; Forestry ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
来源机构 | University of Western Australia |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197094 |
作者单位 | 1.Univ New England, Sch Environm & Rural Sci, Ecosyst Management, Armidale, NSW 2351, Australia; 2.Univ Western Australia, Sch Plant Biol, Crawley, WA 6009, Australia |
推荐引用方式 GB/T 7714 | Smith, Rhiannon,Renton, Michael,Reid, Nick. Growth and carbon sequestration by remnant Eucalyptus camaldulensis woodlands in semi-arid Australia during La Nina conditions[J]. University of Western Australia,2017,232:704-710. |
APA | Smith, Rhiannon,Renton, Michael,&Reid, Nick.(2017).Growth and carbon sequestration by remnant Eucalyptus camaldulensis woodlands in semi-arid Australia during La Nina conditions.AGRICULTURAL AND FOREST METEOROLOGY,232,704-710. |
MLA | Smith, Rhiannon,et al."Growth and carbon sequestration by remnant Eucalyptus camaldulensis woodlands in semi-arid Australia during La Nina conditions".AGRICULTURAL AND FOREST METEOROLOGY 232(2017):704-710. |
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