DOI: 10.1016/j.foreco.2015.01.008
Scopus记录号: 2-s2.0-84922360549
论文题名: Aerial sowing stopped the loss of alpine ash (Eucalyptus delegatensis) forests burnt by three short-interval fires in the Alpine National Park, Victoria, Australia
作者: Bassett O.D. ; Prior L.D. ; Slijkerman C.M. ; Jamieson D. ; Bowman D.M.J.S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 342 起始页码: 39
结束页码: 48
语种: 英语
英文关键词: Aerial sowing
; Eucalypt forest
; Obligate seeder
; Seedling survival
; Type conversion
; Wildfire
Scopus关键词: Fires
; Reforestation
; Eucalypt forest
; Forest vegetation
; Obligate seeder
; Regeneration failure
; Seedling establishment
; Seedling survival
; Victoria , Australia
; Wildfire
; Forestry
; biomass burning
; evergreen forest
; fire behavior
; forest fire
; forest management
; land management
; obligate behavior
; overstory
; regeneration
; seedling establishment
; silviculture
; sowing
; survival
; Eucalyptus
; Forest Fires
; Forests
; Alpine National Park
; Alps
; Australia
; Victoria [Australia]
; Eucalyptus delegatensis
英文摘要: Multiple fires in quick succession can cause an abrupt switch from forest to non-forest vegetation in some biomes. A prime example of such type conversion concerns alpine ash forests (Eucalyptus delegatensis subsp. delegatensis), which are endemic to the Australian Alps bioregion. These forests are long lived and can only regenerate following fire disturbance through the release of seed from the tree canopy, but complete regeneration failure of the eucalypt overstorey can occur if immature stands are subsequently reburnt. Wildfires in 2003, 2007 and 2009 burnt over 87% of the Alpine ash forest in Victoria, with some areas being burnt a second or third time within a decade by the 2013 Harrietville-Alpine Bushfire. Using aerial and field surveys we demonstrated that an area burnt two or three times in the Alpine National Park in Victoria would have resulted in loss of alpine ash forest were it not for an aerial sowing program. This sowing program used reduced sowing rates compared to those typically used in forestry silviculture operations in Victoria. Seedling establishment during the first year was lower on sown than natural seedfall areas but fell within the range of acceptable silvicultural stocking rates. Analysis of cohorts of seedlings over their first summer showed mortality was highest in the 2-3. months following emergence, especially during hot dry periods, but there was no difference in mortality rates between artificially and naturally sown areas. While the aerial sowing intervention established a cohort of alpine ash seedlings, the challenge for land managers is to protect these seedlings from wildfires for the next two decades to avoid loss of these forests. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65521
Appears in Collections: 影响、适应和脆弱性
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作者单位: Forest Solutions, 46 Charles Street, Benalla, VIC, Australia; School of Biological Sciences, University of Tasmania, Private Bag 55, Hobart, TAS, Australia; Department of Environment and Primary Industries, 62-68 Ovens St, Wangaratta, VIC, Australia; Parks Victoria, 46 Bakers Gully Road, Bright, VIC, Australia
Recommended Citation:
Bassett O.D.,Prior L.D.,Slijkerman C.M.,et al. Aerial sowing stopped the loss of alpine ash (Eucalyptus delegatensis) forests burnt by three short-interval fires in the Alpine National Park, Victoria, Australia[J]. Forest Ecology and Management,2015-01-01,342