搜索结果: 1-11 共查到“林业工程 trees”相关记录11条 . 查询时间(0.109 秒)
Timber production and ecological characteristics of trees in coppice forest in the Voskop nature reserve in Česky kras – a case study
stools site index stock volume Quercus Carpinus
2015/5/5
A new approach to forestry that increasingly values non-timber forest functions brings new interest and
value also to coppice forests. A case study in the Voskop nature reserve located in the Č...
FACTORS INFLUENCING GROWTH OF MATURE SYCAMORE TREES (Acer pseudoplatanus L.) ON CARBONATE BEDROCK
Acer pseudoplatanus site productivity height increment basal area increment
2009/11/26
This paper presents the growth potential of sycamore (Acer pseudoplatanus L.) on four types of forest sites located on carbonate bedrock. The research covers sycamore sites (Aceri-Fraxinetum ill.), be...
THE EFFECTS OF FOREST ACCESSIBILITY,THE TREE BRANCH QUANTITY AND YIELDS OF WOOD ON THE TIME TAKEN TO FELL AND PROCESS DECIDUOUS TREES
FOREST ACCESSIBILITY TREE BRANCH QUANTITY YIELDS OF WOOD PROCESS DECIDUOUS TREES
2009/11/26
THE EFFECTS OF FOREST ACCESSIBILITY,THE TREE BRANCH QUANTITY AND YIELDS OF WOOD ON THE TIME TAKEN TO FELL AND PROCESS DECIDUOUS TREES。
Influence of selective thinningS on spatial arrangement and social RANK changes of trees in young black alder stands
Alnus glutinosa Gaertn. spatial arrangement self-thinning selective thinning
2009/11/26
Spatial arrangement, self-thinning and social rank changes of trees were analysed in pure even-aged stands of Alnus glutinosa (in north east Slovenia), in the period from the small to larger pole stag...
SOLITARY TREES AS STEPPING STONES IN AN AGRICULTURAL LANDSCAPE
solitary trees biodiversity GIS stepping stones agricultural landscape regionalization
2009/11/25
Solitary trees are often the only natural vegetation landscape element in an agricultural landscape; yet, sometimes they can compose a mosaic of natural landscape elements together with clusters of tr...
DEAD TREES IN THE VIRGIN FOREST OF PEČKA
dead trees decaying stages virgin forest Abieti-Fagetum dinaricum Pecka (Slovenia)
2009/11/25
This study treats dead trees and their remnants in the research areas of the Pe~ka virgin forest at a location of Abieti-Fagetum dinaricum. It covers four decaying stages: stump, mound, wood remnants,...
Longitudinal Change of Dynamic Modulus of Elasticity and Quality Evaluation by a Non-destructive Method in Todomatsu(Abies sachalinensis)Plus Trees
todomatsu stress wave velocity standing tree dynamic modulus of elasticity
2009/3/6
Longitudinal changes of dynamic modulus of elasticity values (Efr) of logs for todomatsu (Abies sachalinensis) were investigated to clarify the best vertical region of the stem (height from ground lev...
Cultivation and Utilization of Japanese Fast Growing Trees with High Capability for Carbon Stock I.
Melia azedarach fast growing tree wood properties specific gravity pruning
2009/3/6
Wood properties and their variation in the stem of 17-year-old Melia azedarach trees, which grew fast and had straight stem forms due to pruning, were investigated to clarify the potential of this sp...
Application of the Wire Dendrometer for Monitoring the Radial Growth of Trees
wire dendrometer band dendrometer pinning method periodical growth
2009/3/6
Radial growth of a sugi(Cryptomeira japonica)and a hinoki(Chamaecyparis obtusa)tree was measured with the newly developed wire dendrometer to compare its performance with those of the conventional ban...
Cultivation and Utilization of Japanese Fast Growing Trees with High Capability for Carbon Stock II.
Choerospondias axillaris fast-growing tree wood properties density
2009/3/6
Wood properties and their variation in the stem of 19-year-old Choerospondias axillaris trees, which grew fast and had straight stem forms, were investigated to clarify the potential of this species a...
Mechanism of Regulation of Cambial Activity in Trees
auxin cambium plant hormones secondary xylem wood formation
2009/3/4
The quantity and quality of wood are controlled by cambial cell division and the process of xylem differentiation of cambial derivatives. This paper summarizes cell biological and tree physiological ...