DOI: 10.1016/j.foreco.2016.08.015
Scopus记录号: 2-s2.0-84982182469
论文题名: Spatial dynamics of expanding fragmented thermophilous forests on a Macaronesian island
作者: Bello-Rodríguez V. ; García C. ; del-Arco M.J. ; Hernández-Hernández R. ; González-Mancebo J.M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 379 起始页码: 165
结束页码: 172
语种: 英语
英文关键词: Aerial pictures
; Anthropogenic landscapes
; Generalized linear models
; Juniperus turbinata ssp. canariensis
; Natural regeneration
; Spatial aggregation
Scopus关键词: Aerial photography
; Expansion
; Forestry
; Image reconstruction
; Land use
; Landforms
; Population statistics
; Remote sensing
; Anthropogenic landscapes
; Generalized linear model
; Juniperus turbinata ssp. canariensis
; Natural regeneration
; Spatial aggregation
; Reforestation
; aerial photograph
; anthropogenic effect
; coniferous forest
; coniferous tree
; environmental factor
; forest dynamics
; land use change
; range expansion
; regeneration
; remote sensing
; spatial analysis
; Macaronesia
; Juniperus
; Juniperus turbinata
英文摘要: The increasing availability of aerial photographs and remote sensing images allows the forecasting of forest dynamics in response to land-use changes, such as the abandonment of rural activities. The cessation of these activities launches natural regeneration and demographic expansion of formerly fragmented and isolated forests. By tracking these changes over decades, we were able to identify the environmental factors that promote or hamper natural regeneration of forestlands disturbed for centuries. Here, we tracked the demographic expansion of Juniperus turbinata ssp. canariensis over a study period spanning six decades based on aerial pictures. We applied Local Indicators of Spatial Association (LISA) analyses to identify hotspots and coldspots of regeneration and we further quantified the role of ecological and anthropogenic factors in driving natural regeneration by applying a generalized lineal model. Aerial photos showed a clear demographic forest expansion during the approximately 60 years spanned by this study. LISA revealed that this regeneration was not homogeneous across the landscape; rather it was highly aggregated around an increasing number of hotspots of natural regeneration during the study period. The initial density of juniper individuals was the most important variable underpinning the demographic expansion followed by aspect, elevation, and distance to anthropic areas. According to our results, island juniper woodlands regenerate steadily in areas affected by moderate levels of anthropogenic disturbances. Our results provide highly valuable information to implement forest management plans. On-going and future conservation plans to recover the thermophilous Macaronesian forest will particularly benefit from this type of study. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64745
Appears in Collections: 影响、适应和脆弱性
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作者单位: Departamento de Botánica, Ecología y Fisiología Vegetal, Universidad de La Laguna, Avda. Francisco Sánchez s/n, La Laguna, Tenerife, Spain; Plant Biology, CIBIO/InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
Recommended Citation:
Bello-Rodríguez V.,García C.,del-Arco M.J.,et al. Spatial dynamics of expanding fragmented thermophilous forests on a Macaronesian island[J]. Forest Ecology and Management,2016-01-01,379