DOI: 10.1016/j.foreco.2017.09.036
Scopus记录号: 2-s2.0-85029701224
论文题名: Changes in structural heterogeneity and stand productivity by mixing Scots pine and Maritime pine
作者: Riofrío J. ; del Río M. ; Pretzsch H. ; Bravo F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 405 起始页码: 219
结束页码: 228
语种: 英语
英文关键词: Emergent properties
; Mixing effects
; Over-yielding
; Stand structure
; Tree allometry
; Vertical stratification
Scopus关键词: Biology
; Ecology
; Ecosystems
; Mixing
; Mixtures
; Productivity
; Size distribution
; Emergent property
; Mixing effects
; Over-yielding
; Stand structures
; Tree allometry
; Vertical stratification
; Forestry
; Pinus pinaster
; Pinus sylvestris
英文摘要: Mixed-species stands have been studied extensively due to their potentially superior productivity, multi-functionality benefits and high ecological value compared to pure stands. The higher structural heterogeneity in mixed stands that can emerge from species interactions could be linked to the relationship between species diversity and ecosystem functions. We tested whether changes in stand structure also occur in mixtures of species with similar traits and whether they explain over-yielding patterns. Based on research with 12 triplets of Scots pine (Pinus sylvestris L.) and Maritime pine (Pinus pinaster Ait.) in the northern Iberian Peninsula (Spain), we provide evidence that species mixing increased structural heterogeneity and may induce over-yielding in mixed-species stands compared to monospecific stands. In this mixture of two light-demanding species, we observed that (i) stand composition influenced the inter-specific crown allometric variation, (ii) structural heterogeneity in mixed stands was caused by both specie-specific traits and species interactions, and (iii) intraspecific and interspecific differences in both crown size plasticity and size-distribution differentiation were associated with the increased relative productivity of mixed stands. We detected that crown complementarity and vertical stratification in the canopy space is a crucial mechanism for enhancing ecosystem productivity in light-demanding species and could be related to light interception and light-use. This work improves our understanding of emerging properties in mixed stands and introduces considerations for properly scaling and tracing mixing effects at individual tree, size distribution and stand levels. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64079
Appears in Collections: 影响、适应和脆弱性
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作者单位: Sustainable Forest Management Research Institute, University of Valladolid & INIA, Av. Madrid 44, Palencia, Spain; Department of Silviculture and Forest Management, INIA, Forest Research Centre, Ctra. A Coruña, km 7.5, Madrid, Spain; Chair for Forest Growth and Yield Science, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, Freising, Germany; Departamento de Producción Vegetal y Recursos Forestales, E.T.S de Ingenierías Agrarias, Universidad de Valladolid, Palencia, Spain
Recommended Citation:
Riofrío J.,del Río M.,Pretzsch H.,et al. Changes in structural heterogeneity and stand productivity by mixing Scots pine and Maritime pine[J]. Forest Ecology and Management,2017-01-01,405