DOI: 10.1016/j.foreco.2015.05.022
Scopus记录号: 2-s2.0-84937966615
论文题名: Stand-level drivers of tree-species diversification in Mediterranean pine forests after abandonment of traditional practices
作者: Martín-Alcón S. ; Coll L. ; Salekin S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 353 起始页码: 107
结束页码: 117
语种: 英语
英文关键词: Canopy attributes
; Mixed forests
; Oak recruitment
; Pinus nigra
; Regeneration
Scopus关键词: Reforestation
; Canopy attributes
; Mixed forests
; Oak recruitments
; Pinus nigra
; Regeneration
; Forestry
; abatement cost
; abundance
; coniferous tree
; ecosystem resilience
; evergreen tree
; forest management
; mixed forest
; recruitment (population dynamics)
; regeneration
; species diversity
; stand structure
; traditional knowledge
; Catalonia
; Mediterranean Region
; Pyrenees
; Spain
; Pinus nigra
; Quercus
; Quercus ilex
英文摘要: The progressive abandonment of traditional forest management over the last few decades has led to significant densification processes in most Mediterranean pine stands. In parallel, some of these stands have also shown tree-species diversification processes, the occurrence of which is considered essential for future adaptability and resilience to change. Here we aim to gain further understanding of the main factors driving these diversification processes via a case-study approach using the long-term-managed black pine (Pinus nigra Arn. ssp. salzmannii) forests of the Catalan Pre-Pyrenees (NE Spain). For this purpose, we sampled 155 plots distributed in 8 different stands and analyzed the role played by a number of microsite factors and stand attributes (including canopy openness and heterogeneity) on the abundance of seedlings (h<1.3m) and saplings (h >1.3m; dbh<7.5cm) of the main tree-species in the area (i.e. black pine, evergreen oak and marcescent oaks). Results revealed ongoing black pine recruitment limitation processes mainly associated to the high canopy cover of the overstory and the increasing abundance of shrubs, which may compete with pines for light resources. In contrast, we found that current environmental and stand-level conditions favor the progressive advance of the recruitment of evergreen and marcescent oaks, which are able to establish successfully under the dominant pine canopy. However, in the absence of canopy openings, light levels may not allow the established oaks (in particular the evergreen Quercus ilex) to grow and progress to higher developmental stages. Our findings bring deeper insight into the role of stand-level factors regulating species diversification, and can be used by forest managers to adjust their practices (e.g. by modifying the spatial and temporal patterns of silvicultural treatments such as thinnings or selection cuttings) in order to favor this natural process and increase stand resilience. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65422
Appears in Collections: 影响、适应和脆弱性
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作者单位: Forest Sciences Center of Catalonia (CEMFOR-CTFC), Solsona, Spain; CREAF, Cerdanyola del Valleỳs, Spain
Recommended Citation:
Martín-Alcón S.,Coll L.,Salekin S.. Stand-level drivers of tree-species diversification in Mediterranean pine forests after abandonment of traditional practices[J]. Forest Ecology and Management,2015-01-01,353