DOI: 10.1016/j.foreco.2014.06.020
Scopus记录号: 2-s2.0-84903987186
论文题名: Cumulative effects of chronic deer browsing and clear-cutting on regeneration processes in second-growth white spruce stands
作者: Barrette M. ; Bélanger L. ; De Grandpré L. ; Ruel J.-C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 329 起始页码: 69
结束页码: 78
语种: 英语
英文关键词: Forest regeneration processes
; Parklands
; Recalcitrant understory layer
; Resilience
; White spruce
; White-tailed deer
Scopus关键词: Deforestation
; Forest regeneration
; Parklands
; Recalcitrant understory layer
; Resilience
; White spruce
; White-tailed deer
; Reforestation
; browsing
; clearcutting
; coniferous tree
; deer
; deforestation
; disturbance
; ecosystem resilience
; growth
; regeneration
; stand structure
; succession
; Deforestation
; Picea Engelmannii
; Reforestation
英文摘要: Interactions between multiple disturbances can alter resilience mechanisms, thereby triggering alternative successional pathways. Regeneration processes are important mechanisms of forest resilience because they drive successional pathways. On Anticosti Island, chronic browsing by introduced white-tailed deer (Odocoileus virginianus) shifted composition of understory regeneration of overmature balsam fir (Abies balsamea) forests toward dominance by white spruce (Picea glauca). Historic clear-cutting of these altered forests generated mature second-growth white spruce stands. However, the cumulative effect of chronic deer browsing and recent clear-cutting on regeneration processes of mature second-growth white spruce stands has not yet been evaluated. Our objective is to evaluate if regeneration processes would enable white spruce stands to recover from the cumulative effects of these two disturbances. We studied regeneration in relation to seed availability, substrate suitability for seedling establishment, and substrate availability in mature second-growth white spruce stands and recent clear-cuts of mature second-growth white spruce stands. Our results indicate regeneration failure in both ecosystems, which can be explained by a lack of suitable rotten logs for sufficient establishment of white spruce seedlings. Hence, the cumulative effects of chronic deer browsing and clear-cutting of mature second-growth white spruce stands have altered regeneration processes and triggered an alternative successional pathway toward parklands, i.e., partial deforestation. We propose shelterwood cuttings that create nurse logs should be investigated to maintain white spruce stands without planting. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65825
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Laboratoire d'aménagement intégré, Département des Sciences du Bois et de la Forêt, Université Laval, 2405 de la Terrasse, Québec, QC G1V 0A6, Canada; Chaire de Recherche Industrielle CRSNG-Produits Forestiers Anticosti, Département de Biologie, Université Laval, 1045 Ave. de la Médecine, Québec, QC G1V 0A6, Canada; Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du P.E.P.S., Québec, QC G1V 4C7, Canada; Centre d'étude de la Forêt, Département des Sciences du Bois et de la Forêt, Université Laval, 2405 de la Terrasse, Québec, QC G1V 0A6, Canada
Recommended Citation:
Barrette M.,Bélanger L.,De Grandpré L.,et al. Cumulative effects of chronic deer browsing and clear-cutting on regeneration processes in second-growth white spruce stands[J]. Forest Ecology and Management,2014-01-01,329