搜索结果: 1-15 共查到“林学 Norway spruce”相关记录89条 . 查询时间(0.197 秒)
Modelling individual tree diameter growth for Norway spruce in the Czech Republic using a generalized algebraic difference approach
base-age invariant approach Chapman-Richards function global parameters tree-specific parameters iterative nested regression National Forest Inventory
2017/6/26
Individual tree-based growth models precisely describe the growth of individual trees irrespective of stand complexity. These models are more useful than the stand-based growth models for effective ma...
Multivariate analysis for assessment of the tree populations based on dendrometric data with an example of similarity among Norway spruce subpopulations
dendrometry hierarchical classification ordination Picea abies
2018/3/6
The new method for evaluation of tree populations presented here is based on a correlation analysis within a set of
dendrometric variables. The correlation analysis is carried out for each population...
Production and soil restoration effect of pioneer tree species in a region of allochthonous Norway spruce dieback
forest transformation regeneration methods birch aspen wood production soil chemistry
2017/4/6
The paper analyses the growth, structure, production and soil chemistry of different tree species stands 20 years after allochthonous spruce dieback. The experiment was carried out at lower altitudes ...
Below-canopy and topsoil temperatures in young Norway spruce and Carpathian birch stands compared to gaps in the mountains
air soil below-canopy climate microclimate stand environment
2016/11/11
Reduced air pollution load has allowed to use commercially oriented forestry in the Central European mountains since the 1990s. The goal is, however, to restore species- and age-diversified stable sta...
Effect of Bio-Algeen preparation on growth and mycorrhizal characteristics of Norway spruce seedlings
Ascophyllum nodosum ectomycorrhiza nurseries Picea abies seaweed
2016/7/6
In this paper, the effect of the Bio-Algeen® product (bio-alginate from the seaweed Ascophyllum nodosum (Linnaeus) Le Jolis) was evaluated in relation to basic mycorrhizal and growth characterist...
Intra-annual patterns of weather and daily radial growth changes of Norway spruce and their relationship in the Western Carpathian mountain region over a period of 2008–2012
dendrometers Picea abies environmental fluctuation Western Beskids stem circumference changes
2015/8/14
The contribution presents the results of a 5-year (2008–2012) dendroecological research in a Norway spruce
(Picea abies [L.] Karst.) clone forest (Northern Slovakia). Due to different climatic and s...
Effects of light exposure in freezing temperatures on winter damage to foliage of Norway spruce container seedlings in mid and late winter: Pilot experiments in open field
cell damage frost irradiance needle colour
2015/5/18
Norway spruce (Picea abies [L.] Karst.) is widely planted for reforestation in the boreal zone. It is sensitive
to frost and high irradiance during the growing season, and also to winter damage to f...
Ca/Al ratio in Norway spruce fine roots on monitoring plots in the Czech Republic
aluminium toxicity forest health soil acidification
2015/5/5
This article is focused on the evaluation of the Al/Ca ratio in fine roots of Norway spruce on the plots
belonging to the ICP Forests monitoring programme in the Czech Republic.
Impact of risk factor management on the sanitary condition of Norway spruce (Picea abies [L.] Karst.) pure stands in Latvia
compartment location compartment shape
2015/5/5
In management of young forest stands, it is often the case in forestry that several risk factors, biotic,
abiotic and anthropogenic ones, have to be dealt with. An anthropogenic factor is of great i...
Growth of Norway spruce seedlings after transplanting into silty soil amended with biochar: a bioassay in a growth chamber
carbon sequestration forest soils soil additives outplanting success pyrolysis
2015/4/24
Biochar (BC), the carbon-rich by-product resulting from pyrolysis of biomass, is used for bioenergy and increasingly as a soil additive for carbon sequestration and soil improvement. However, informat...
Norway spruce litterfall and forest floor in the IUFRO thinning experiment CZ 13 – Vítkov
forest-floor layers litterfall Norway spruce thinning
2015/4/24
The effect of thinning on litterfall and decomposition of biomass was investigated in Norway spruce IUFRO thinning experiment (CZ-13), Czech Republic. The experiment was established in 1971 in an 8-ye...
Growth of Norway spruce (Picea abies [L.] Karsten) from artificial and natural regeneration in the Krkonoše Mts. and air temperature variability
climate regression models 8th forest altitudal zone reforestation
2015/4/24
Our research was concerned with a description of the influence of variability in average temperatures on the height growth of selected young populations of spruce in the Krkonoše Mts. Several pop...
Effects of fertilisation on growth and nutrition of Norway spruce on a harsh mountain site
fertilization nutritional status Picea abies survival
2015/4/24
We evaluated the potential of crushed amphibolite and artificial slow-release N-P-K-Mg fertiliser to stimulate the survival, growth and nutrition of Norway spruce planted on an acidified air-polluted ...
The health and nutritional status of Norway spruce stands in the Krušné hory Mts. 15 years subsequent to the extreme winter of 1995/96
forest health tree nutrition air pollution Ore Mts
2015/4/24
Since 1994, the nutritional status and the air pollution load have been evaluated on 20 research plots, located in young Norway spruce stands in the ridge area of the Krušné hory Mts. The most re...
Foliage and fine roots in terms of growth efficiency – a comparison between European beech and Norway spruce at early growth stages
allometric equations fine root morphology leaf area stem diameter stem mass production interspecies differences
2015/4/24
The quantification of stems (under- and overbark), foliage and fine roots in 14-year-old stands of European beech and Norway spruce grown on the same site were evaluated. Therefore, 60 trees of each s...