共查询到20条相似文献，搜索用时 15 毫秒
1.
François Courbet Jean-Christophe Hervé Etienne K. Klein Francis Colin 《Annals of Forest Science》2012,69(2):125-138
• Introduction
Branch size and branch status (dead or alive) are important characteristics closely related to tree growth and wood quality. The aim of this study was to design models for the diameter and status of branches in Atlas cedar (Cedrus atlantica Manetti). 相似文献2.
Jaume Gort-Oromi Lauri Mehtätalo Heli Peltola Ane Zubizarreta-Gerendiain Pertti Pulkkinen Ari Venäläinen 《Annals of Forest Science》2011,68(7):1233-1243
• Introduction
The objective of this work was to study how spacing and genetic entry and/or origin group affect radial growth (ring width and cumulative diameter development) and ring density from pith to bark in Scots pine (Pinus sylvestris L.) and in what sense their annual variability could be explained by the climatic variables. The spacing trial was located in central Finland, with current stand density range of 2,000–4,000 trees per hectare. All the six genetic entries had Kanerva pine (plus tree S1101) as a father tree, whereas the mother tree represented Finnish plus trees from southern, central and northern Finland. 相似文献3.
Encarna Rodríguez-García Cristóbal Ordóñez Felipe Bravo 《Annals of Forest Science》2011,68(2):337-346
• Introduction
Shrubs are recognized as important tree regeneration niches. In this study, we experimentally analysed the effects of shrub presence, canopy cover (closed cover and open cover-gaps), and seedling size on Pinus pinaster growth. 相似文献4.
Arben Q. Alla J. Julio Camarero Pilar Rivera Gabriel Montserrat-Martí 《Annals of Forest Science》2011,68(7):1245-1254
• Introduction and statement of the research questions
The relationships between primary and secondary growth in tree populations of contrasting climates are poorly understood. We tested the hypotheses that bud size and stem cross-sectional area are related through allometric relationship in shoots and that their scaling slopes change in response to climatic stress. 相似文献5.
6.
• Background
The Holm oak (Quercus ilex ssp. ballota [Desf.] Samp.) is an evergreen tree widely distributed in the western Mediterranean Basin. Forest restoration programs using this species have enjoyed only limited success, and knowledge concerning the effect of fertilization on plant quality and post-transplantation response is sparse. 相似文献7.
• Background
Tree breeders have been reluctant to include wood traits in tree improvement programs owing to logistic difficulties and the cost associated with the assessing the traits. 相似文献8.
Context
The European black poplar (Populus nigra) is considered one of the most seriously endangered indigenous tree species. However, the total area covered by monoclonal plantations of hybrid poplar is growing, because of the high profitability of these trees. 相似文献9.
Frida I. Piper 《Annals of Forest Science》2011,68(2):415-424
• Introduction
One current explanation for worldwide drought-induced tree mortality states that reduced photosynthesis and continued respiration lead to carbon depletion and eventually to carbon starvation. 相似文献10.
Viviana Horna Bernhard Schuldt Sarah Brix Christoph Leuschner 《Annals of Forest Science》2011,68(5):1027-1038
• Introduction
We studied stem sap flux density in seven common tree species in a perhumid tropical rainforest at pre-montane elevation in Sulawesi with the aims (1) to analyse the among-species variation in flow patterns, (2) to search for an assumed convergence in the response to controlling environmental factors, and (3) to investigate the effect of tree size on xylem flux. 相似文献11.
• Context
Forest stand dynamics models simulate the growth of trees in stands; based on field measurements and system knowledge, they provide a relatively precise representation of forest growth and are well adapted for forest management purposes. Architectural models describe the structure of plants according to ontogenetic development processes; as a support of biomass production and partitioning at organ scale, they simulate individual tree development. 相似文献12.
Zhen-Ming Ge Seppo Kellomäki Heli Peltola Xiao Zhou Kai-Yun Wang Hannu Väisänen 《Annals of Forest Science》2011,68(2):371-383
• Introduction
Based on previous studies, it is assumed that the growth of Norway spruce (Picea abies) in southern Finland (61°N) may decrease under the changing climate due to the increasing soil water deficit, without management. 相似文献13.
• Introduction
The annual development cycle of boreal and temperate trees results from an evolutionary trade-off between two opposing forces. These are namely, the adjustment of leaf phenology to the timing of frost occurrence at the beginning and/or the end of the growth season countered by an effective adjustment to the duration of the growth season to maximise photosynthesis and biomass production during the growing season. 相似文献14.
• Introduction
Fruit-body production of mushrooms is not well understood to date as many factors interact with mushroom growth in nature. Weather conditions play a key role, but they do not completely explain the growth and productivity of wild mushrooms. Mycorrhizal fungi depend on photosynthetically fixed carbon produced by their associated trees, and the physiological state of host trees may well drive the growth of these fungi. We raise the question of whether mycorrhizal fungi can be used as indicators for tree health. 相似文献15.
Gonzalo Pérez-de-Lis Ignacio García-González Vicente Rozas José Ramón Arévalo 《Annals of Forest Science》2011,68(6):1093-1104
• Context
The suitability of thinning to prevent forest growth decline as a result of global warming has not been tested extensively in Macaronesian Canary pine (Pinus canariensis Sweet ex Spreng.). 相似文献16.
Florence Trum Hugues Titeux Jacques Ranger Bruno Delvaux 《Annals of Forest Science》2011,68(4):837-847
• Background
Among forest management practices, forest tree species substitution influences biogeochemical cycles and soil interactions rapidly (decades) and significantly. 相似文献17.
Victoria González-Rodríguez Rafael Villar Raquel Casado Elena Suárez-Bonnet José Luis Quero Rafael M. Navarro-Cerrillo 《Annals of Forest Science》2011,68(7):1217-1232
Introduction
The great spatial and temporal heterogeneity of Mediterranean ecosystems can influence establishment success in woody species, whose natural regeneration occurs to a very small extent. In this work, the effect of the spatial pattern of environmental variables (light availability, soil moisture and herbaceous production) on seedling emergence, growth, survival and establishment success was examined by using a spatially explicit approach. 相似文献18.
• Background and purpose
A complex interplay between biotic and abiotic factors is believed to be responsible for several oak declines in pedunculate oak (Quercus robur L.). This study aims to clarify the temporal process of oak declines, as well as identifying individual tree and environmental variables that affects growth rate and that may increase the risk of mortality. The study was performed in southern Sweden at three sites. 相似文献19.
• Introduction
The interactive effects of water and nitrogen (N) on frost hardiness are not well known in broad-leaved trees. Furthermore, new environmental conditions may favour naturally generated hybrids between native and introduced tree species over native species. 相似文献20.
Mélanie Saulnier Jean-Louis Edouard Christophe Corona Frédéric Guibal 《Annals of Forest Science》2011,68(1):189-200