DOI: 10.1016/j.foreco.2016.01.038
Scopus记录号: 2-s2.0-84957922881
论文题名: Prescribed fire increases pyrogenic carbon in litter and surface soil in lowland Eucalyptus forests of south-eastern Australia
作者: Krishnaraj S.J. ; Baker T.G. ; Polglase P.J. ; Volkova L. ; Weston C.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 366 起始页码: 98
结束页码: 105
语种: 英语
英文关键词: Charcoal
; Emissions
; PyC
; Soil organic carbon
; Wildfire
Scopus关键词: Charcoal
; Forestry
; Organic carbon
; Oxidation resistance
; Particulate emissions
; Soils
; Char particles
; Eucalyptus forests
; Oxidation resistant
; Prescribed burn
; Prescribed fires
; Soil organic carbon
; South-eastern Australia
; Wildfire
; Fires
; Eucalyptus
; Eucalyptus obliqua
英文摘要: Low intensity prescribed fire is widely practiced in seasonally dry forests in many countries to reduce fuel loads and the risk of uncontrollable wildfires. Associated with low intensity fire is the heating and alteration of organic matter of the litter and surface soil to create pyrogenic carbon (PyC). This study reports changes in total carbon (TC) and PyC in the litter (as char particles) and the top 2 cm of soil (as oxidation resistant carbon, PyC) in Eucalyptus obliqua forests in south-eastern Australia. Litter and surface soil were sampled and carbon (C) measured before and immediately after low intensity prescribed fire on the same sites. Post-fire, lightly burnt (FIRE-300) and heavily burnt (FIRE-600) forest floor areas were sampled separately. On average, net loss of 1.55 Mg ha-1 C (10% of initial) from litter was largely offset by increase of 1.67 Mg ha-1 C in soil (which was restricted to the 0-cm layer) with no net change in the initial litter + soil C stock of 21.9 Mg ha-1 C. Concurrently, fire increased PyC by 0.3 Mg ha-1 in litter and 0.4 Mg ha-1 in surface soil, which together were equivalent to about 11% of the 6.1 Mg ha-1 C emitted to the atmosphere as a result of the prescribed burn. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65005
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Ecosystem and Forest Sciences, The University of Melbourne, 4 Water Street, Creswick, VIC, Australia; School of Ecosystem and Forest Sciences, The University of Melbourne, 500 Yarra Boulevard, Richmond, VIC, Australia; CSIRO Land and Water Flagship, GPO Box 1700, Canberra, ACT, Australia; Fenner School of Environment and Society, The Australian National University, Linnaeus Way, Canberra, ACT, Australia
Recommended Citation:
Krishnaraj S.J.,Baker T.G.,Polglase P.J.,et al. Prescribed fire increases pyrogenic carbon in litter and surface soil in lowland Eucalyptus forests of south-eastern Australia[J]. Forest Ecology and Management,2016-01-01,366