DOI: 10.1016/j.foreco.2013.03.028
Scopus记录号: 2-s2.0-84876809417
论文题名: Modelling fuel succession in Mediterranean cork oak forests along a 70-year chronosequence
作者: Porto M. ; Correia O. ; Beja P.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 302 起始页码: 221
结束页码: 230
语种: 英语
英文关键词: Fire risk
; Fuel management
; Fuel succession
; Quercus suber forests
Scopus关键词: Chronosequences
; Coarse materials
; Fire risks
; Fuel management
; Landscape scale
; Quercus
; Spatial and temporal distribution
; Understory vegetation
; Fire hazards
; Fires
; Fuels
; Management
; Vegetation
; Forestry
; biomass
; chronosequence
; deciduous forest
; fire management
; forest fire
; fuelwood
; risk assessment
; shrubland
; spatial distribution
; succession
; temporal distribution
; understory
; Biomass
; Forest Fires
; Forests
; Fuels
; Quercus Suber
; Europe
; Mediterranean Region
; Quercus suber
英文摘要: Mechanical removal of understory vegetation is increasingly used in Euro-Mediterranean forests to reduce fire hazard, but little is known about the long-term patterns of fuel change after management. We used a 70-year post-management chronosequence to investigate fuel succession in cork oak Quercus suber forests. Mean shrub height, crown volume, total standing biomass, and biomass of leaves, and coarse and fine materials, increased rapidly during the first 10. years after management, but then converged slowly to a plateau that was not reached within the chronosequence. A high vertical continuity of fuels from the ground level to the tree canopy (0-2. m) was reached in about 10-20. years, but peak understory cluttering occurred only at 50-70. years. Fine materials accumulated primarily at lower strata (<1. m) throughout the chronosequence, whereas leaves and coarse materials accumulated first at lower strata, and then progressively occupied the upper strata (>1.5. m). Results suggest that recurrent fuel management may promote highly flammable pioneer shrublands, whereas lack of management promotes late-successional vegetation with high risk of intense wildfires. Solving this conundrum requires careful planning of the spatial and temporal distribution of treatments to reduce the risk of fire spread at the landscape scale. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66555
Appears in Collections: 影响、适应和脆弱性
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作者单位: Centro de Biologia Ambiental, Departamento de Biologia Vegetal, Faculdade de Ciências de Lisboa, Universidade de Lisboa, C2 Campo Grande, 1749-016 Lisboa, Portugal; EDP Biodiversity Chair, CIBIO-Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, Universidade do Porto, 4485-601 Vairão, Portugal
Recommended Citation:
Porto M.,Correia O.,Beja P.. Modelling fuel succession in Mediterranean cork oak forests along a 70-year chronosequence[J]. Forest Ecology and Management,2013-01-01,302