搜索结果: 1-15 共查到“species composition”相关记录28条 . 查询时间(0.125 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 ...
Effect of agricultural lands afforestation and tree species composition on the soil reaction, total organic carbon and nitrogen content in the uppermost mineral soil profile
acidification afforestation carbon nitrogen soil reaction
2015/3/10
Forests occupy one third of the world’s land area and govern carbon (C) transfers and influence nitrogen (N) content in the biosphere. Afforestation leads to soil changes of specific dynamics, often a...
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...
IMPACT OF FIRE ON SPECIES COMPOSITION OF VEGETATION IN THE CASES OF KARST AND ISTRIA IN SOUTH-WEST SLOVENIA:A PRELIMINARY REPORT
fire vegetation plant life form Submediterran Slovenia
2009/11/26
This paper deals with impact of fire on the botanical composition of vegetation with an emphasis on relationships among plant life forms (phanerophytes, chamaephytes, chemicryptophytes, geophytes, ter...
A COMPARISON OF STAND STRUCTURE AND PLANT SPECIES COMPOSITION BETWEEN VIRGIN FOREST REMNANT AND MANAGED FOREST,AND RESULT CONSIDERATION IN REGARD TO FORESTRY PLANNING
stand structure texture plant diversity managed forest virgin forest remnant forest planning
2009/11/25
Some results of comparisons of stand structure and plant species composition between virgin forest remnants and managed forests are presented. The horizontal structure of the analysed managed stands i...
ANALYSIS OF FOREST QUANTITIES AND SPECIES COMPOSITION ALTERATION USING TWO DIFFERENT METHODS WITH COMPARISONS
composition type forest stand composition alteration computer model type alteration indicator
2009/11/25
The article analyses composition alterations in forest stands using two methods. In the first, composition alterations in types of plant community are estimated and in the second, composition alterati...