DOI: 10.1016/j.foreco.2015.01.023
Scopus记录号: 2-s2.0-84923023809
论文题名: Regeneration dynamics of Quercus pyrenaica Willd: In the Central System (Spain)
作者: Camisón Á. ; Miguel R. ; Marcos J.L. ; Revilla J. ; Tardáguila M.T. ; Hernández D. ; Lakicevic M. ; Jovellar L.C. ; Silla F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 343 起始页码: 42
结束页码: 52
语种: 英语
英文关键词: Castanea sativa
; Forest dynamics
; Oak recruitment
; Pinus reforestations
; Seedling abundance
Scopus关键词: Dynamics
; Forestry
; Castanea sativa
; Dbh distributions
; Forest degradation
; Forest dynamics
; Mediterranean region
; Oak recruitments
; Regeneration dynamics
; Seedling abundance
; Reforestation
; abundance
; coniferous tree
; deciduous tree
; human activity
; recruitment (population dynamics)
; reforestation
; regeneration
; sapling
; stand structure
; twentieth century
; wild population
; Forests
; Pinus
; Quercus
; Reforestation
; Iberian Peninsula
; Spain
; Castanea sativa
; Quercus pyrenaica
英文摘要: In the Mediterranean region, over the past few centuries human activity has modeled the landscape, leading to forest degradation. However, as in many parts of the European continent since the second half of the twentieth century, the Iberian Peninsula has been subject to a substantial degree of land abandonment that has led to the expansion of important secondary forests. One of the dominant tree species in the transitional forests of mountain areas between the Mediterranean and Euro-Siberian regions of the Iberian Peninsula is the deciduous oak, Quercus pyrenaica Willd. The main objectives of the present work were to study the mode of regeneration and forest dynamics of Q. pyrenaica in several types of stands: young forests, mature and previously perturbed forests, and abandoned Pinus reforestations. With this in mind we established eight plots in the mountain range of the Sierra de Francia-Quilamas, in the west subdivision of the Spanish Central System. We analyzed the age and dbh distributions, regeneration density, and the spatial structure of trees and saplings. Young Q. pyrenaica stands were seen to show episodic recruitment after land abandonment consistent with a 'catastrophic' mode of regeneration. These stands were characterized by unimodal age-cohorts, with tree recruitment dropping drastically as the canopy developed and closed in, except at some study sites where the more shade-tolerant Castanea sativa was found. Older and previously disturbed Q. pyrenaica stands showed bimodal age cohorts, the young ones exhibiting a clumped pattern associated with canopy gaps and/or a lower tree density of the older cohort. In abandoned Pinus reforestations, the recruitment of Q. pyrenaica was also associated with canopy openings. These findings show that Q. pyrenica also undergoes a gap-phase mode of regeneration. An abundant regeneration of Q. pyrenaica could be found at all the stands, guaranteeing the persistence of seedling banks (but a scarcity or lack of saplings) under closed forests, until canopy gaps may allow some Q. pyrenaica individuals to grow and reach the main canopy. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65512
Appears in Collections: 影响、适应和脆弱性
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作者单位: Area of Ecology, Faculty of Biology, University of Salamanca, Spain; Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia; Servicio Territorial de Medio Ambiente, Junta de Castilla y León, Spain
Recommended Citation:
Camisón Á.,Miguel R.,Marcos J.L.,et al. Regeneration dynamics of Quercus pyrenaica Willd: In the Central System (Spain)[J]. Forest Ecology and Management,2015-01-01,343