搜索结果: 1-15 共查到“林业基础学科 oak”相关记录18条 . 查询时间(0.115 秒)
The Strong Position of Silver Fir (Abies alba Mill.) in Fertile Variants of Beech and Oak-Hornbeam Forests in the Light of Studies Conducted in the Sudetes
ecology silviculture phytosociology habitat preferences
2023/12/18
Silver fir is one of the longest living and tallest trees in Europe, it has major commercial importance and may be found in various communities predominantly connected with lower mountainous locations...
Quantitative and qualitative evaluation of Northern red oak (Quercus rubra L.) in arid areas of North-Western Bohemia
exotic oak domestic oak growth tree quality stand quality health status
2018/3/6
The article analyses growth and quality of Northern red oak (Quercus rubra Linnaeus) based on 13 research plots
(seven in red oak stands and six in sessile oak stands) with the ages between 17 to 159...
The root system of pedunculate oak (Quercus robur L.) at the margins of regenerated stands
forest regeneration stand margin edge effect tree morphology mortality microclimate
2017/4/6
The paper aims to contribute to the determination of reasons causing the irregular growth of young pedunculate oaks occurring at the margins of naturally and artificially regenerated plots neighbourin...
Response of diameter and height increment to thinning in oak-hornbeam coppice in the southeastern part of the Czech Republic
drought European hornbeam growth of sprouts sessile oak soil moisture stump basal area
2016/6/3
The objective of this paper was to test the hypothesis that growth and soil moisture would increase after heavy thinning in seven years old oak-hornbeam coppice stand. Effects of thinning on (i) diame...
Silvicultural potential of northern red oak and its regeneration–Review
ecological niche acorn silvicultural systems soil
2016/5/11
Northern red oak (Quercus rubra Linnaeus) is a promising species which could help to mitigate the sanitary problems. Northern red oak is also a commercial species and offers many environmental service...
Effects of Cattle Management on Oak Regeneration in Northern Californian Mediterranean Oak Woodlands
Cattle Management Oak Regeneration
2015/11/13
Oak woodlands of Mediterranean ecosystems, a major component of biodiversity hotspots in Europe and North America,
have undergone significant land-use change in recent centuries, including an increas...
Quantitative and qualitative characteristics of Persian oak along altitudinal gradation and gradient (Case study: Ilam province, Iran)
habitat growing stock DBH tree height tree quality regeneration
2015/8/14
Quantitative and qualitative characteristics of Persian oak (Quercus persica) were studied in relation to
altitude and slope variations in Ilam province. A total area of 1,500 m2 (30 × 50 m) was cov...
Long-term response of understorey cover, basal area and diversity to stand density in a mixed oak forest on the Síkfőkút plot in Hungary
Quercus cerris shrub layer Acer campestre Shannon-Wiener index Evenness index shrub foliage cover
2015/4/24
The serious oak decline was reported for the 1979–80 period and 63.0% of adult oaks died in a mixed oak forest in the Síkfőkút site, Hungary. The data were used to obtain (1) quantitative informa...
Estimation of leaf area index and assessment of its allometric equations in oak forests: Northern Zagros, Iran
allometric relationships destructive sampling leaf area index Quercus libani Oliv. specific leaf area
2015/4/14
The focus of the present study is the estimation of leaf area index (LAI) and the assessment of allometric equations for predicting the leaf area of Lebanon oaks (Quercus libani Oliv.) in Iran’s north...
Evaluation of twenty-years-old pedunculate and sessile oak provenance trial
Czech Republic evaluation pedunculate oak provenance research sessile oak variability in height and diameter growth
2015/3/27
This paper deals with the measurement and evaluation of pedunculate and sessile oaks on five provenance trial plots located in the forest regions Západočeská pahorkatina, Jihočeská pánev, Ho...
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 ...
Natural regeneration of sessile oak under different light conditions
sessile oak natural regeneration light conditions close-to-nature forest management
2015/3/27
Different variants of regeneration felling or different light conditions (total site factor 15–95%) and weed control were evaluated in relation to the 4-year development of individuals of regenerated ...
The paper deals with an experiment that was established at Opočno Experimental Station of the Forest and Game Management Research Institute (CR) in an oak small pole stage in 1952 to test whether...
Determination of the number of sapwood annual rings in oak in the region of southern Moravia
sapwood oak annual ring analysis Czech Republic
2015/3/3
The paper deals with the determination of the number of sapwood annual rings in oak (Quercus sp.) in
relation to altitude, locality and stand age. Several different groups of samples were used...
Variability of acorn nutrient concentrations in pedunculate oak (Quercus robur L.) genotypes
chemical composition embryo
2015/3/3
The objective of this study was to determine mineral element concentrations (N, P, K, Ca, Mg, Na, Fe,
Zn, Mn, and Cu) in various parts of pedunculate oak acorns to estimate variability in the chemica...