DOI: 10.1016/j.foreco.2015.08.006
Scopus记录号: 2-s2.0-84940094587
论文题名: Deadwood residence time in alluvial hardwood temperate forests - A key aspect of biodiversity conservation
作者: Vrška T. ; Přívětivý T. ; Janík D. ; Unar P. ; Šamonil P. ; Král K.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 357 起始页码: 33
结束页码: 41
语种: 英语
英文关键词: Advanced decay stage
; Bayesian estimation
; Deadwood distribution
; Decay rate
; Half-life
; Residence time
Scopus关键词: Bayesian networks
; Biodiversity
; Conservation
; Decay (organic)
; Decomposition
; Forestry
; Hardwoods
; Bayesian estimations
; Deadwood distribution
; Decay rate
; Decay stages
; Half lives
; Residence time
; Residence time distribution
; Bayesian analysis
; biodiversity
; conservation management
; dead wood
; decomposition
; dicotyledon
; half life
; residence time
; spatial distribution
; temperate forest
; time series
; wood ash
; Dead Wood
; Distribution
; Species Identification
; Trees
; Europe
; Acer campestre
; Carpinus
; Carpinus betulus
; Fraxinus angustifolia
; Quercus robur
; Ulmus
英文摘要: There are hundreds of scientific papers dealing with the issues of biodiversity and extinction debt in temperate forests, both of which are partly related to the absence of deadwood. Some studies have derived habitat thresholds for deadwood (according to species, size, spatial distribution) as baselines for management recommendations. But a majority of studies have one important knowledge gap - how long does it take for deadwood to decompose? To derive the residence time of deadwood, we used a 40-year time series of 4 censuses in European lowland hardwood temperate forests. The deadwood residence of 2252 logs of 5 main tree species was calculated using Bayesian Survival Trajectory Analysis. Pedunculate oak (. Quercus robur) had the longest residence time, with the largest logs decomposing for an average of 62. years. Next was narrow-leaved ash (. Fraxinus angustifolia) with a residence time of about 42. years. Field maple (. Acer campestre) and hornbeam (. Carpinus betulus) had a similar residence time - with the largest logs averaging 37-39. years. Elm (. Ulmus sp.) had the fastest decomposition of large-sized logs - estimated at 24. years. Generally, small-sized logs of all investigated species decomposed quickly. Conversely, large-sized logs of hornbeam and ash decomposed as quickly as their intermediate-sized logs. Large-sized logs of elm decayed even faster than intermediate-sized logs. An analysis of the position of field maple logs during decomposition showed that those decomposing in the air or in water decomposed slower than logs "on the ground", with a half-life of 40. years (compared to 28. years on the ground) and a residence time of 54. years (44. years on the ground). Our results suggest that the management of deadwood should focus on (i) leaving the largest logs, which took the longest time to reach advanced decay stages, and (ii) a diversified approach regarding the individual residence time of different tree species. © 2015 Elsevier B.V.. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65261
Appears in Collections: 影响、适应和脆弱性
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作者单位: Silva Tarouca Research Institute, Department of Forest Ecology, Lidická 25/27, Brno, Czech Republic; Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Silviculture, Zemědělská 3, Brno, Czech Republic
Recommended Citation:
Vrška T.,Přívětivý T.,Janík D.,et al. Deadwood residence time in alluvial hardwood temperate forests - A key aspect of biodiversity conservation[J]. Forest Ecology and Management,2015-01-01,357