Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.09.032 |
Impact of mechanical thinning on forest carbon, fuel hazard and simulated fire behaviour in Eucalyptus delegatensis forest of south-eastern Australia | |
Volkova, Liubov1; Bi, Huiquan1,2; Hilton, James3; Weston, Christopher J.1 | |
2017-12-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 405 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | Forest mega-fires have become a global phenomenon in recent decades including in south-eastern Australia where large areas of forest have been fire-killed with loss of human lives and property and impacting carbon sequestration and greenhouse gas emissions. The vast extent and impact of mega-fires has induced a re-evaluation of fuel reduction methods as a key management strategy in wildfire risk mitigation in many countries. This study investigated the impact of a commercial thinning in Eucalyptus delegatensis forest on fuel hazard, fuel loads and wildfire behaviour, eight years after completion of a bay and outrow thinning operation. At the stand level, thinning reduced overstorey tree stocking by more than 50%, increased canopy openness and stimulated the growth of retained trees. Thinning also encouraged the profuse regeneration of over 1000 saplings ha(-1) of E. delegatensis, mostly in the outrows, compared with no sapling regeneration in unthinned forest. A system of additive biomass equations was developed to estimate total biomass and component biomass (stem wood, bark, branches and foliage) of individual trees. The above ground tree carbon was 433 +/- 49 Mg C ha(-1) in unthinned forest and 322 +/- 47 Mg C ha(-1) in thinned forest. Thinning decreased surface fuel hazard ratings and fuel loads but had no significant effect on the mass of coarse woody fuels. Fire simulation under severe to extreme weather conditions, as occurred in the 2006/7 Great Divide Fires, indicated an almost 30% reduction in fireline intensity and about 20% reduction in the rate of spread and spotting distance in thinned forest compared with unthinned forest. This study indicates the potential of thinning to reduce wildfire severity and to increase the fire-survival of E. delegatensis. |
英文关键词 | Allometric equations Forest carbon CWD Fuels Wildfire Eucalyptus delegatensis Alpine Ash |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413878500010 |
WOS关键词 | ASH GROUP ; VICTORIA ; WILDFIRE ; REDUCTION ; HEIGHT ; MODELS ; GROWTH ; PINE ; RISK ; SUPPRESSION |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23474 |
专题 | 气候变化 |
作者单位 | 1.Univ Melbourne, Fac Sci, Sch Ecosyst & Forest Sci, Water St, Creswick, Vic 3363, Australia; 2.NSW Forest Sci, Dept Ind Lands, Level 12,10 Valentine Ave, Parramatta, NSW 2150, Australia; 3.CSIRO, Data61, Clayton, Vic 3169, Australia |
推荐引用方式 GB/T 7714 | Volkova, Liubov,Bi, Huiquan,Hilton, James,et al. Impact of mechanical thinning on forest carbon, fuel hazard and simulated fire behaviour in Eucalyptus delegatensis forest of south-eastern Australia[J]. FOREST ECOLOGY AND MANAGEMENT,2017,405. |
APA | Volkova, Liubov,Bi, Huiquan,Hilton, James,&Weston, Christopher J..(2017).Impact of mechanical thinning on forest carbon, fuel hazard and simulated fire behaviour in Eucalyptus delegatensis forest of south-eastern Australia.FOREST ECOLOGY AND MANAGEMENT,405. |
MLA | Volkova, Liubov,et al."Impact of mechanical thinning on forest carbon, fuel hazard and simulated fire behaviour in Eucalyptus delegatensis forest of south-eastern Australia".FOREST ECOLOGY AND MANAGEMENT 405(2017). |
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