DOI: 10.1016/j.foreco.2015.11.046
Scopus记录号: 2-s2.0-84959378853
论文题名: Influence of neighbouring woody treatments on Mediterranean oak development in an experimental plantation: Better form but weaker growth
作者: Prévosto B. ; Gavinet J. ; Monnier Y. ; Corbani A. ; Fernandez C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 362 起始页码: 89
结束页码: 98
语种: 英语
英文关键词: Competition
; Facilitation
; Light availability
; Plant interactions
; Soil moisture
; Vegetation control
Scopus关键词: Competition
; Forestry
; Moisture
; Moisture control
; Morphology
; Nitrogen fixation
; Plants (botany)
; Soil moisture
; Soils
; Competitive interactions
; Facilitation
; Light availability
; Light interception
; Plant interactions
; Potential benefits
; Undesirable effects
; Vegetation control
; Vegetation
; Coronilla
; Pinus halepensis
; Quercus
; Quercus ilex
; Quercus pubescens
英文摘要: Mixed plantations have been receiving increasing attention for their documented or supposed potential benefits over monospecific plantations. In particular, the use of neighbouring (or nurse) vegetation around target plants can enhance their performance through limitation of the competing herb layer, and can also improve their morphology.Here we examine the benefits and drawbacks of using neighbour treatments on the response of target trees in open plantations. We set up an experimental plantation in southern France, in which two co-occurring target oak species (the evergreen Quercus ilex and the deciduous Quercus pubescens) were introduced in different neighbour treatments using a tree (Pinus halepensis) and a shrub species (the nitrogen-fixing Coronilla glauca). Oaks were planted with pine neighbours at two densities, with shrub neighbours, in a mixture of pines and shrubs or without neighbours. The ground vegetation was either regularly weeded or left to grow in order to detect any indirect facilitation interactions. Target oak responses (survival, growth, and morphology) were monitored over 7 years. Soil water content and light availability were also measured throughout the experiment.We found competition to be the dominant process driving interactions between neighbours and target tree species. Growth was reduced by neighbour treatments for both species, but more in weeded than in unweeded treatments, showing an alleviation of competitive interactions by neighbours through limitation of herb layer development. However, in both ground vegetation treatments, growth was severely reduced with Coronilla shrubs. Survival was only significantly impaired for the less shade-tolerant Q. pubescens oak used in combination with shrubs. The negative influence of the neighbour treatments was mainly attributable to light interception, which was particularly high by shrub canopy. Soil moisture was also slightly reduced by shrub neighbours, but it remained high with pines in the unweeded treatment owing to a limited abundance of herbs. However, stem form was improved by the neighbour treatments: oaks developed narrower crowns and greater slenderness with neighbours, whereas oaks in the open showed a bushy morphology. These findings emphasise the need to clearly identify key objectives before implementing mixed plantations (e.g. maximising growth, survival, improving morphology, etc.) and to use active management to control potential undesirable effects of the neighbouring vegetation on target plants. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65096
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Inst. national de recherche en sciences et technologies pour l'environnement et l'agriculture Irstea, 3275 route de Cézanne, Aix-en-Provence, France; UMR AMAP, Cirad-Cnrs-Inra-Ird-Université Montpellier 2, 37/PS1, Bd de la Lironde, Montpellier cedex 5, France; Institut Mediterraneen de Biodiversité et d'Écologie marine et continentale (IMBE), Aix-Marseille Université, CNRS, IRD, Avignon Université, UMR 7263, 3 place Victor-Hugo, Marseille cedex 3, France
Recommended Citation:
Prévosto B.,Gavinet J.,Monnier Y.,et al. Influence of neighbouring woody treatments on Mediterranean oak development in an experimental plantation: Better form but weaker growth[J]. Forest Ecology and Management,2016-01-01,362