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Long-term silvicultural experiment with transformation of the mixed stand structure
production regeneration species composition stand transformation
2015/3/27
The paper summarizes the main characteristics of a mixed stand during 80-year transformation to the mixed stand with permanent selective structure. The initial main stand was mostly composed of conife...
Broadleaved regeneration dynamics in the Pine plantation
broadleaved regeneration pine plantation management orchids Terschelling
2015/3/27
In an Island of the Netherlands, Pine (Pinus nigra) was planted to stabilize the dunes and to protect the arable lands from the blowing sand. This research was conducted to understand the most importa...
Variation of conducting area in stems of European larch (Larix deciduas) growing in fresh mixed coniferous forest and fresh mixed forest sites
conducting area European larch mean ring conducting area relative conducting area social class of tree position
2015/3/20
The paper presents an attempt to determine conducting area (CA), relative conducting area (CA.k–1) and mean ring conducting area (CAar) on discs cut at breast height from stems of larch trees growing ...
The influence of Picea abies on herb vegetation in forest plant communities of the Veporské vrchy Mts.
beech forest biodiversity herb vegetation Picea abies Karst. species composition
2015/3/20
Natural mixed beech-fir forests were quite widely replaced by spruce dominated stands in Slovakia. Given the demands on the assessment of the forest status as well as on stopping the biodiversity loss...
Application of digital elevation model for mapping vegetation tiers
altitudinal vegetation zones digital elevation model linear models vegetation tiers
2015/3/19
The aim of this paper is to explore possibilities of application of digital elevation model for mapping vegetation tiers (altitudinal vegetation zones). Linear models were used to investigate the rela...
The influence of selected factors on energy requirements for plain milling of beech wood
angular geometry beech cutting input cutting speed false heart feed speed milling
2015/3/19
The paper deals with differences in energy requirements for cutting input at plain milling of beech wood with and without false heart with different changing parameters of cutting and feed speed and a...
Influence of micro-relief and weed competition on natural regeneration of mountain forests in the Šumava Mountains
Czech Republic micro-relief mountain forests natural regeneration weed competition
2015/3/19
Natural regeneration and its relationship to micro-relief and weed competition were studied on 6 research plots in mountain spruce forests in the Šumava Mountains. The data on density regeneratio...
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...
Evaluation of the growth and health status of selected clone mixtures in comparison with ordinary planting stock
chlorophyll fluorescence clonal propagation growth mother plantations mountain conditions Norway spruce water losses
2015/3/19
The present paper compares the growth of parent trees and potentially stress-tolerant mixtures of clones of Norway spruce (Picea abies [L.] Karst.) progenies coming from a specific locality near the &...
Effect of gibberellic acid and ethephon on the germination of European beech dormant and chilled beechnuts
ethephon Fagus sylvatica germination gibberellic acid
2015/3/19
The effect of ethephon (80, 100 and 120 mg·l–1) and gibberellic acid (GA3) (40, 300 and 1,000 mg·l–1) on the germination capacity (GC) and mean germination time (MGT) of European beech (Fagus sylvatic...
Extent and distribution of beech (Fagus sylvatica L.) regeneration by adult trees individually dispersed over a spruce monoculture
beech dispersed trees forest dynamics regeneration transformation of spruce monocultures
2015/3/19
Recently individually dispersed adult beech trees have regenerated in spruce monocultures and this fact could be used to manage the transformation of stands into a mixed forest. Three such cases in th...
Occurrence of Ips duplicatus (Coleoptera: Curculionidae, Scolytinae) on pines (Pinus sp.) in the Czech Republic and southern Poland – Short Communication
Ips duplicatus faunistics host tree Pinus Czech Republic southern Poland
2015/3/12
Spruce is regarded as the only host plant of Ips duplicatus in Central Europe, whereas this beetle exceptionally occurs on pine in Siberia. Its occurrence on Pinus strobes and Pinus sylvestris was dis...
秦皇岛市森林植被碳储量、碳密度及其空间分布
秦皇岛市 森林植被碳储量 碳密度 空间分布
2016/12/21
分析区域森林资源的碳储量大小及分布规律,为地方森林碳汇经营管理和规划提供科学依据. [方法] 基于河北省森林资源清查数据,乔木树种采用方精云建立的生物量换算因子连续函数法,灌木和经济林采用平均生物量法,结合不同树种分子式含碳率,对秦皇岛市森林植储量和碳密度进行了估算,并运用ARCGIS软件对其空间分布进行了分析. [结果] 2005年,秦皇岛市森林植被总碳储量为4.30×106 t,森林植被平均碳...
Models for predicting aboveground biomass of European beech (Fagus sylvatica L.) in the Czech Republic
beech biomass function temperate forests tree allometry wood density
2015/5/6
We developed optimal models for predicting the aboveground biomass of European beech (Fagus sylvatica L.) applicable to the national forest inventory data of the Czech Republic. The models were based ...
Occurrence, bionomics and harmfulness of Chrysomela populi L. (Coleoptera, Chrysomelidae)
Chrysomelidae Chrysomela populi
2015/3/3
In 2003 to 2005, Chrysomela populi L. gradated on yearly cut Populus nigra var. italica in street alleys
in Brno and elsewhere. Imagoes occurred on trees from the end of April or from the beginning ...