DOI: 10.1016/j.foreco.2017.02.051
Scopus记录号: 2-s2.0-85016069696
论文题名: Forest succession where trees become smaller and wood carbon stocks reduce
作者: Moroni M.T. ; Musk R. ; Wardlaw T.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 393 起始页码: 74
结束页码: 80
语种: 英语
英文关键词: Coarse woody debris
; Eucalypt forest
; Harvesting
; Mixed forest
; Rainforest
; Snag
; Wet forest
; Wildfire
Scopus关键词: Fires
; Harvesting
; Reforestation
; Coarse woody debris
; Eucalypt forest
; Mixed forests
; Rainforest
; Snag
; Wet forest
; Wildfire
; Forestry
英文摘要: As Tasmania's wet forests transition from mixed forest (eucalypt overstory with a rainforest understory) to rainforest they can be expected to lose more than half their total (live + dead, standing + downed) bole wood volume and biomass. On average rainforest sites contained 205 Mg C ha−1, or 708 m3 ha−1 less wood (live + dead, standing + downed) than mixed forests. This occurs as smaller dimension rainforest trees replace the larger eucalypts. On the fertile study sites, the largest rainforest trees were 20 m shorter and 113 cm smaller in breast height diameter than the mature eucalypts in mixed forests. Tasmanian wet forests do not attain the highest site level C-stocks possible in late succession, as is expected for many other forests. Rather, the maxima is attained for a short period several centuries after disturbance and regeneration of a eucalypt cohort. Hence, the maintenance of the highest C-density stands in the landscape, and potentially that largest landscape level C-stocks among Tasmania's wet forests ironically requires the periodic killing of all, or part, of the large C-dense eucalypt overstory by intense wildfire to allow these large eucalypts to regenerate and persist on these sites. This creates challenges when modeling forest carbon in Tasmanian wet forests, as not only is the area of forest that has progressed sufficiently toward rainforest to be emitting C is unknown, but the rate of C emission and the amount that will be lost over time across the various site fertility types is also unknown. Certainly, setting aside Tasmanian wet eucalypt forest to store C will not deliver the usual long term C accumulation benefits common to forests elsewhere. Maximizing landscape level C-stocks is likely to require periodic disturbance to maintain the C-dense eucalypts in the landscape. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64371
Appears in Collections: 影响、适应和脆弱性
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作者单位: Private Forests Tasmania, 30 Patrick Street, Hobart, Australia; Forestry Tasmania, 79 Melville Street, Hobart, Australia; ARC Centre for Forest Value, University of Tasmania, Sandy BayTasmania, Australia
Recommended Citation:
Moroni M.T.,Musk R.,Wardlaw T.J.. Forest succession where trees become smaller and wood carbon stocks reduce[J]. Forest Ecology and Management,2017-01-01,393