搜索结果: 1-9 共查到“林业基础学科 light”相关记录9条 . 查询时间(0.086 秒)
Correlation of Leaf and Root Traits of Two Angiosperm Tree Species in Northeast China under Contrasting Light and Nitrogen Availabilities
leaf-specific traits leaf morphology root morphology leaf mass per area leaf density specific root length specific root area root tissue density
2023/12/19
Thinning is an important management practice for reducing plant competition and improving wood production in forests. The residues from thinning can contain large amounts of carbon (C) and nitrogen (N...
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...
Variability in leaf and crown morphology correlated with light availability in five natural populations of Quercus castaneifolia C.A. Mey
plasticity Hyrcanian forest controlled conditions leaf mass leaf area leaf area ratio
2018/3/6
In this study, we investigate seedlings of Quercus castaneifolia C.A. Mey, from five different provenances for the research
on leaf and crown morphological variations in relation to a light gradient ...
Physiological responses of seedlings of different Quercus castaneifolia C.A.Mey.provenances to heterogeneous light environments
peroxidase quantitative activity Hyrcanian forest chlorophyll content
2016/11/11
In this study, five biochemical traits obtained for seedlings of five different provenances of Quercus castaneifolia C.A. Meyer were used to evaluate the available light environment using instantaneou...
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 ...
Growth and physiological state of beech seedlings grown in a nursery in different light conditions
beech chlorophyll fluorescence Fagus sylvatica light conditions morphology seedlings
2015/3/19
Seedlings of European beech of two populations (from the 4th and 7th forest altitudinal zone) were grown in a shaded and unshaded plastic greenhouse. The objective was to compare seedling growth and t...
Assimilation apparatus variability of beech transplants grown in variable light conditions of blue spruce shelter
beech transplants light nutrient content of leaves fluorescence of chlorophyll leaf area
2015/3/12
The paper valuates the differences in the selected characteristics of the assimilation apparatus of beech transplants growing in various light conditions of blue spruce small pole stage in the Jizersk...
Light distribution within forest edges in relation to forest regeneration
advanced planting forest edge light compensation point photon flux density
2015/2/6
Light conditions were measured along six transects from 35 m inside of a mixed Norway spruce/Scots pine forest to an adjoining clear-cut in NW-Austria. Photosynthetic photon flux density (PFD) was rec...
Effects of grasses on sapling establishment and the role of transplanted saplings on the light environment of pastures: implications for tropical forest restoration
Degradation Light incidence Mexico Rain forest Recovery
2015/11/13
Saplings had high survival (49–88%) regardless of the presence of
grasses. In the presence of grasses, growth of surviving saplings either
increased or was not impacted, and in only one out of eight...