DOI: 10.1016/j.foreco.2012.09.021
Scopus记录号: 2-s2.0-84867366642
论文题名: Can hybrid poplar plantations accelerate the restoration of forest understory attributes on abandoned fields?
作者: Boothroyd-Roberts K. ; Gagnon D. ; Truax B.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 287 起始页码: 77
结束页码: 89
语种: 英语
英文关键词: Afforestation
; Farmland
; Leaf litter
; Nurse stand
; Shade
; Soil
Scopus关键词: Abandoned farmland
; Afforestation
; Canopy development
; Deltoides
; Ecological effect
; Farmland
; Forest habitats
; Forest understory
; Herbaceous species
; Hybrid poplar
; Hybrid poplar clones
; Leaf litter
; Multi-functional
; Native species
; Native trees
; P. balsamifera
; P. nigra
; Populus
; Quebec , Canada
; Second-growth forests
; Secondary forests
; Shade
; Shrub species
; Soil chemical property
; Tree seedlings
; Tree species
; Understory vegetation
; Woodlots
; Cloning
; Ecosystems
; Farms
; Nursing
; Reforestation
; Restoration
; Soil moisture
; Soils
; Conservation
; afforestation
; agricultural land
; colonization
; competition (ecology)
; deciduous tree
; habitat restoration
; herb
; hybrid
; leaf litter
; plantation
; restoration ecology
; secondary forest
; seedling
; shade tolerance
; soil moisture
; stand structure
; transpiration
; understory
; vegetation structure
; Clones
; Conservation
; Forest Litter
; Forestation
; Moisture
; Reforestation
; Shades
; Soil
; Canada
; Quebec [Canada]
; Populus
; Populus balsamifera
; Populus nigra
英文摘要: Multi-functional plantations using fast-growing tree species can potentially be used to accelerate the restoration of forest habitat on abandoned farmland. However, few studies have directly compared the ecological effects of active afforestation using plantations to natural afforestation. The present study compares the effects of the establishment and the first 10. years of growth of two different hybrid poplar clones to adjacent abandoned fields and natural second-growth forests, in terms of abiotic attributes and understory vegetation communities. Experimental plantations of a Populus maximowiczii×. P. balsamifera (M. ×. B) hybrid and a P. deltoides×. P. nigra (D. ×. N) hybrid were established in 2000 on abandoned fields at 8 sites in southern Quebec, Canada. In 2009, soil chemical properties, soil moisture, canopy openness, leaf litter biomass, and understory vegetation communities were sampled in the plantations and in neighboring unmanaged abandoned fields and second-growth woodlots. Canopy development was greatly accelerated by the plantations of both hybrid poplar clones, compared to the unplanted portions of abandoned fields, and in the more productive plantations of both clones, canopy openness and leaf litter biomass were similar to those measured in the woodlots. No difference was detected in soil chemical properties between the abandoned fields and either type of plantation. The plantation soils were drier than those of both the abandoned fields and the secondary forests, possibly due to increased transpiration by the hybrid poplars. The plantations favored the colonization of the sites by native tree seedlings compared to the unmanaged fields, producing a nurse stand effect. Among herbaceous and shrub species, native species richness was slightly higher in the plantations than in the fields. The understories of the fastest growing plantations had species in common with both the fields and the woodlots, while the understory of the slowest growing plantations was very similar to the field vegetation. The plantation understories had lower covers of open-habitat species than the fields, while the M. ×. B plantations had slightly greater covers of native, shade-tolerant species. Plantations of the M. ×. B clone were more distinct from the abandoned fields than were plantations of the D. ×. N clone. In conclusion, hybrid poplar plantations appear capable of accelerating the restoration of certain understory attributes, which in turn favors their colonization by tree seedlings and suppresses competition from light-demanding herbaceous species. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66871
Appears in Collections: 影响、适应和脆弱性
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作者单位: Centre d'étude de la forêt, Université du Québec à Montréal, CP 8888 succ. Centre-Ville, Montreal, QC, H3C 3P8, Canada; Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4S 0A2, Canada; Fiducie de recherche sur la forêt des Cantons-de-l'Est, Eastern Townships Forest Research Trust, 1 rue Principale, Saint-Benoît-du-Lac, QC, J0B 2M0, Canada
Recommended Citation:
Boothroyd-Roberts K.,Gagnon D.,Truax B.. Can hybrid poplar plantations accelerate the restoration of forest understory attributes on abandoned fields?[J]. Forest Ecology and Management,2013-01-01,287