搜索结果: 1-15 共查到“林业基础学科 Norway spruce”相关记录48条 . 查询时间(0.132 秒)
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...
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...
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...
Influence of limestone and amphibolite application on growth of Norway spruce plantation under harsh mountain conditions
Picea abies forest soil chemical amelioration growth nutrition
2015/4/14
The results of a fifteen-year period of investigations conducted on Norway spruce in the upper plateau of the Jizerské hory Mts. were summarised. The objectives were to evaluate the growth performance...
Changes in phenolic acids and stilbenes induced in embryogenic cell cultures of Norway spruce by two fractions of Sirococcus strobilinus mycelian
defence response Norway spruce phenylpropanoids stilbenoids
2015/3/27
We examined defence responses in embryogenic cell suspension cultures of Norway spruce (Picea abies [L.] Karst) elicited by intracellular protein and cell wall fractions (PF and WF, respectively) prep...
Evaluation of physiological and health state of Norway spruce plants with different growth rate at juvenile stage after outplanting at mountain locations
health status mountain locality Norway spruce physiological trait
2015/3/27
Norway spruce (Picea abies [L.] Karst.) seedlings grown from seed originating from high mountain locations (8th forest altitudinal zone – Norway spruce vegetation zone 1,000–1,250 m a.s.l.) show highe...
Soil environment and nutrient status of Norway spruce (Picea abies [L.] Karst.) underplantings in conditions of the 8th FAZ in the Hruby Jeseník Mts.
Norway spruce nutrient deficiency symptoms stand nutrition soil environment
2015/3/27
The main objective of this study was to investigate the causes of nutrient deficiency symptoms in Norway spruce (Picea abies [L.] Karst.) underplantings in the Hruby Jeseník Mts. In the area concerned...
Preliminary study on phloemogenesis in Norway spruce: influence of age and selected environmental factors
cambium environmental factors influence of age light microscopy Norway spruce (Picea abies) phloem formation
2015/3/27
The process of phloem formation in Norway spruce (Picea abies [L.] Karst.) was analysed during the growing season 2009 in Rájec-Němčice locality (Czech Republic). The research series consisted of...
Transformation of solar radiation in Norway spruce stands into produced biomass – the effect of stand density
biomass production LAI Norway spruce PAR absorption solar energy conversion
2015/3/27
The present paper is focused on an assessment of the effects of stand density and leaf area development on radiation use efficiency in the mountain cultivated Norway spruce stand. The young even-aged ...
Effect of climatic factors on the dynamics of radial increments of Norway spruce, European beech and sessile oak
annual ring analysis climatic factors radial increments European beech sessile oak Norway spruce Slovakia
2015/3/27
Correlations of increment indexes with average monthly temperatures and total monthly precipitation were studied on annual ring series of 455 trees of Norway spruce (Picea abies [L.] Karst.), sessile ...