共查询到20条相似文献,搜索用时 922 毫秒
1.
Juan Wang Zhijun Li Qiuhong Guo Guangpeng Ren Yuxia Wu 《Annals of Forest Science》2011,68(6):1143-1149
Backgroud
Populus euphratica Oliv., a long-lived woody perennial plant, is the only forest species naturally distributed in desert regions. Severe desertification has resulted in this species becoming endangered, and its populations are seriously fragmented in northwest China. 相似文献2.
Gilles Chaix Olivier Monteuuis Charles Garcia David Alloysius Jikos Gidiman Roberto Bacilieri Doreen K. S. Goh 《Annals of Forest Science》2011,68(5):1015-1026
• Introduction
As a forest species, genetic variability is high in teak (Tectona grandis) and domestication of the species is very recent. The selection effect among qualitative and quantitative traits is therefore expected to be strong. Native provenances and clonal seed orchard families were compared in this study. 相似文献3.
Introduction
Korean pine (Pinus koraiensis) is a dominant tree species in the cold temperate mixed forest zone in eastern Eurasia. Its seeds are food sources for wildlife but have become an important and marketable part of the economy for local communities. 相似文献4.
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5.
Ernesto Escalante Valentín Pando Cristóbal Ordoñez Felipe Bravo 《Annals of Forest Science》2011,68(4):715-726
• Introduction
Understanding diameter growth of the Mediterranean pine species is fundamental for evaluating and making appropriate strategic decisions in forest management. A matrix diameter growth model for two Mediterranean pine forest ecosystems in Spain has been developed. 相似文献6.
• Context
Landscape structure is crucial for forest conservation in regions where the natural forest is fragmented. Practical conservation is currently shifting from local stands to a landscape perspective, although few studies have tested the relative effects of different spatial scales on plant species composition and diversity in forests. 相似文献7.
Guillermo J. Martínez Pastur Pablo L. Peri Juan M. Cellini María V. Lencinas Marcelo Barrera Horacio Ivancich 《Annals of Forest Science》2011,68(3):587-594
•Introduction
Silviculture systems applied in Nothofagus pumilio forests are based on opening the canopy to stimulate natural regeneration by modifying light and soil moisture. The objective is to evaluate regeneration dynamics of N. pumilio along different forest canopy and solar radiation gradients. 相似文献8.
Grégoire Vincent Jean-François Molino Lucile Marescot Karim Barkaoui Daniel Sabatier Vincent Freycon Jean Baptiste Roelens 《Annals of Forest Science》2011,68(2):357-370
• Introduction
Various processes contribute to shaping the local assemblage of species in hyperdiverse tropical forest. The relative contribution of environmental factors and dispersal limitation in determining the spatial distribution of saplings at local scale is unclear. 相似文献9.
• Introduction
The wavelet-based functional approach was evaluated for modelling tree taper of jack pine (Pinus banksiana Lamb.) trees grown in the Canadian boreal forest region. 相似文献10.
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11.
•Introduction
The agricultural landscape in Eastern Canada has drastically changed in the last decades. Whilst certain forest communities are disappearing, post-agricultural forests are emerging from old fields colonized by fast-growing tree species. 相似文献12.
Marie Baltzinger Frédéric Archaux Marion Gosselin Richard Chevalier 《Annals of Forest Science》2011,68(2):395-406
• Introduction
Most temperate forests are managed for wood production, and some forestry practices generate typical environmental features such as roads, paths, ditches and tractor ruts, which are likely to affect forest species distribution. 相似文献13.
Gianluigi Mazza Emilio Amorini Andrea Cutini Maria Chiara Manetti 《Annals of Forest Science》2011,68(8):1323-1332
• Context
This research was conducted in a 62-year-old stone pine (Pinus pinea L.) forest within the National Natural Reserve of the Roman Coast, Italy. Net under-canopy precipitation was measured between September 2004 and December 2008 in a unthinned and a thinned area of about 1 ha each. 相似文献14.
Victoria González-Rodríguez Rafael M. Navarro-Cerrillo Rafael Villar 《Annals of Forest Science》2011,68(3):637-646
Introduction
The limited ability of Quercus species to regenerate naturally in Mediterranean forests has led to the development of various artificial regeneration methods; however, there is no general consensus as to what specific method is the best one for this purpose. 相似文献15.
Context
Rotation length is known to affect timber quality in many plantation species, but its effect on the properties of Sitka spruce (Picea sitchensis) structural timber has not been quantified. 相似文献16.
Sidzabda Djibril Dayamba Patrice Savadogo Louis Sawadogo Didier Zida Daniel Tiveau Per Christer Oden 《Annals of Forest Science》2011,68(3):555-564
Background
The potential of forest to regenerate after harvesting is a key element for sustainability of the ecosystem. For semi-arid tropical savanna environments, managing resprouts after tree cutting is ideally suited because of the natural ability of many indigenous species to regenerate vegetatively. Regeneration in this ecosystem is, however, prone to many disturbance factors such as fire and grazing by livestock. 相似文献17.
Patricia Delgado Daniel Piñero Virginia Rebolledo Lev Jardón Francisco Chi 《Annals of Forest Science》2011,68(1):121-128
• Introduction
The recognition of endangered species takes into account geographic isolation and small size of populations, as is the case of two populations of Pinus caribaea var. hondurensis distributed in México. 相似文献18.
Coralie Bertheau Stéphanie Bankhead-Dronnet Carine Martin François Lieutier Géraldine Roux-Morabito 《Annals of Forest Science》2012,69(3):313-323
Context
The bark beetle, Pityogenes chalcographus, is one of the main pests in Picea abies stands, and it has also been found on other European Pinaceae species. With massive introductions of North American conifer species into European forests, this insect has extended its host range to exotic Pinaceae species. 相似文献19.
Jeroen Staelens Lieven Nachtergale An De Schrijver Margot Vanhellemont Karen Wuyts Kris Verheyen 《Annals of Forest Science》2011,68(1):89-98
Introduction
To increase our understanding of litterfall dynamics in mixed-species forests, seasonal and annual variations in litterfall mass and nutrient concentrations were assessed for a 60-year-old spontaneously developed forest dominated by silver birch (Betula pendula Roth), pedunculate oak (Quercus robur L.), and northern red oak (Quercus rubra L.) in Belgium. 相似文献20.