搜索结果: 1-12 共查到“林学 species composition”相关记录12条 . 查询时间(0.078 秒)
Shifts in Forest Species Composition and Abundance under Climate Change Scenarios in Southern Carpathian Romanian Temperate Forests
LANDIS-II PnET climate change Southern Carpathians forest biomass production species composition species abundance Romanian temperate forests
2023/12/11
The structure and functioning of temperate forests are shifting due to changes in climate. Foreseeing the trajectory of such changes is critical to implementing adequate management practices and defin...
Effect of Species Composition on Growth and Yield in Mixed Beech–Coniferous Stands
mixed stand soil trophicity mean height dominant height species composition mean annual volume increment
2023/11/22
Research Highlights: In mixed stands, competitive and supportive relationships occur between trees, illustrated by their dendrometric characteristics. Background and Objectives: We investigated the ef...
Growth-mortality attributes and species composition determine carbon sequestration and dynamics of old stand types in the Acadian Forest of New Brunswick, Canada
Permanentsampleplot Biomass Speciesmix Mortality Netcarbonchange Openstandmodel
2024/2/28
Key messageWe used 20years of plot data to analyze the influence of tree growth-mortality balance and species mix on the potential of old stands to sequester carbon from the atmosphere and store carbo...
Differences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast China
broadleaved-Korean pine mixed forest forest structure species composition species diversity
2015/3/19
Broadleaved-Korean pine (Pinus koraiensis) mixed forest is a typical vegetation type in the eastern Eurasian continent. We compared the structure, composition and diversity of a primary forest and a l...
Species composition in low mountain beech (Fagus sylvatica L.) stands in the Bieszczady National Park under the global warming
beech stands species composition climate changes
2015/3/16
The author analyzes the changes in the tree species composition of Dentario glandulosae-Fagetum Klika 1927 em. Mat. 1964 in the mountain stands of Bieszczady National Park in 1993?003. The analysis ta...
Development of species composition in long term simulations with an individual-tree growth simulator
potential natural vegetation type forest stand development species distribution
2015/3/16
The spruce-fir-beech dominated forest stands in Litschau in the Austrian part of the Bohemian Massif were converted by former forest management practices into pure Norway spruce stands and are now dis...
Dynamics of tree species composition and characteristics of available space utilization in the natural forest of the National Nature Reserve Hrončokovsky Grúň
natural forest developmental stage utilization of production space structure
2015/3/12
The paper deals with changes in the diameter structure of particular tree species as well as with the selected production characteristics in the mixed virgin forest Hrončokovsky Grúň. The object ...
Object-oriented classification of Ikonos satellite data for the identification of tree species composition
automated image analysis eCognition median filters
2015/3/3
This paper describes the automated classification of tree species composition from Ikonos 4-meter imagery using an object-oriented approach. The image was acquired over a man-planted forest area with ...
Changes in tree species composition, stand structure, qualitative and quantitative production of mixed spruce, fir and beech stand on Stará Píla research plot
thinnings stand structure crop trees
2015/3/3
The paper is a contribution to the research on problems of thinnings in mixed (spruce-fir-beech) stands
situated in the 5th forest altitudinal zone (beech with fir) in the central part of...
Evaluation of changes in the tree species composition of Czech forests
Forest Natural Regions target management set of forest site types coniferous trees broadleaved trees tree species composition original tree species composition target tree species composition
2015/2/2
The tree species composition of forests in the Czech Republic has changed due to the human impact over the time. Nowadays, the idea of reducing the area with spruce stands and of increasing the area w...
A development cycle of the forest with fir (Abies alba Mill.) and beech (Fagus sylvatica L.) in its species composition in the Świętokrzyski National Park
forest development cycle periods of decline recovery and transformation SINUS System Abies alba Fagus sylvatica Ś wię tokrzyski National Park
2015/2/2
The objectives of this study are to determine the progress of the development cycle of the forest taking into account untypical development periods caused by fir decline and recovery, and to compare t...
The Species Composition of Soil Seed Banks in the Ooyamazawa Riparian Forest,in the Chichibu Mountains,Central Japan
Betula grossa Euptelea polyandra Fraxinus platypoda stand germination test zoochorous seed
2009/8/24
We examined the species composition of soil seed banks (to 5 cm depth), using germination tests, for the Ooyamazawa riparian forest in the Chichibu Mountains. The canopy of this forest is dominated by...