DOI: 10.1016/j.foreco.2014.07.001
Scopus记录号: 2-s2.0-84904899874
论文题名: Dynamics of understory vegetation after restoration of natural characteristics in the boreal forests in Finland
作者: Hekkala A.-M. ; Tarvainen O. ; Tolvanen A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 330 起始页码: 55
结束页码: 66
语种: 英语
英文关键词: Burning
; Disturbance
; Felling
; Plant functional type
; Succession
; Uprooting
Scopus关键词: Combustion
; Fungi
; Restoration
; Storms
; Vegetation
; Disturbance
; Felling
; Plant functional type
; Succession
; Uprooting
; Reforestation
; boreal forest
; coarse woody debris
; coniferous forest
; forest management
; Red List
; restoration ecology
; succession
; understory
; vegetation dynamics
; Combustion
; Fungi
; Plants
; Reforestation
; Restoration
; Finland
英文摘要: Restoration of boreal coniferous forests is used in Northern Europe to increase the natural variability of forest structure and to add coarse woody debris for red-listed dead-wood dependent species, mainly insects and fungi. In four protection areas of eastern Finland, we evaluated how three commonly used restoration methods (felling with chainsaw, storm simulation, and felling with burning) with two felling levels (20% and 40% of initial living stand volume) affect the vegetation dynamics. The aim was to assess whether the type and intensity of restoration lead to different stages in the plant succession which would reflect the effectiveness of the restoration methods in terms of simulating natural disturbances. The restoration treatments were conducted in 2006 on 43 experimental stands and 15 were set as controls. Understory vegetation cover was surveyed from 372 permanent 1 m2 plots in 2005, 2007 and 2011. The data were analyzed with mixed effect models and multivariate methods. Burning most efficiently initiated natural vegetation succession. Despite the initial decline of nearly all plant functional types, pioneering species such as Betula spp. and Populus tremula, forbs, graminoids and pioneer mosses regenerated quickly and exceeded their pre-disturbance covers in 2011. Dwarf shrubs Vaccinium myrtillus, V. vitis-idaea and Calluna vulgaris recovered nearly to their initial levels, whereas Empetrum nigrum, forest mosses and lichens did not show any recovery in five years. Storm simulation increased species richness on the stand scale and promoted the regeneration of Pinus sylvestris in soil exposed by tree uprooting. Tree felling slightly decreased the cover of lichens on the lower felling level treatment. We generated a species response table illustrating the responses of dominant species to restoration methods in the course of the seven-year study. We conclude that the dominant restoration method, tree felling, could increasingly be replaced by burning and storm simulation which have faster and greater positive impacts on the forest ecosystem. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65765
Appears in Collections: 影响、适应和脆弱性
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作者单位: Thule Institute, University of Oulu, P.O. Box 7300, FIN-90014, Finland; Finnish Forest Research Institute, Oulu Unit, University of Oulu, P.O. Box 413, FIN-90014, Finland
Recommended Citation:
Hekkala A.-M.,Tarvainen O.,Tolvanen A.. Dynamics of understory vegetation after restoration of natural characteristics in the boreal forests in Finland[J]. Forest Ecology and Management,2014-01-01,330