搜索结果: 1-15 共查到“农学 larch”相关记录19条 . 查询时间(0.087 秒)
The relationships among structure variables of larch forests in China
Larch forests Stand factor Allometric relationship Power function Density effect and self-thinning
2024/1/19
Larch (Larix Mill.) forests are widely distributed in the upper parts of mountainous areas in China, playing vital roles in constructing mountain landscapes and maintaining mountain environments. Desp...
Evaluating Post-Fire Vegetation Recovery in Cajander Larch Forests in Northeastern Siberia Using UAV Derived Vegetation Indices
Larix cajanderi Siberia wildfire drones uncrewed aerial vehicle NDVI GCC normalized difference vegetation index green chromatic coordinate
2023/12/18
The ability to monitor post-fire ecological responses and associated vegetation cover change is crucial to understanding how boreal forests respond to wildfire under changing climate conditions. Uncre...
Effects of Long-Term Successive Rotations, Clear-Cutting and Stand Age of Prince Rupprecht’s larch (Larix principis-rupprechtii Mayr) on Soil Quality
soil quality successive planting generation stand age clear-cutting Larix principis-rupprechtii Mayr
2024/2/28
A decline in soil quality is a major factor contributing to the degradation of forest ecological function. Vegetation plays a vital role in maintaining soil quality; however, the influence of plantati...
Testing of germination of spruce, pine and larch seed after 10 years from collection – Short Communication
germination capacity germination energy
2015/5/5
Germination capacity and germination energy are usually the most frequently used quantitative parameters of forest tree seed. With seed ageing both parameters decreased and the rate of the collapse is...
Selection of European larch provenances based on productivity and economic values
growth production forest tree breeding
2015/4/24
Productivity of individual European larch provenances was evaluated on the basis of height and diameter growth and volume production at the age of 40 years. This work was focused on identifying differ...
Aboveground biomass of substitute tree species stand with respect to thinning – European larch (Larix decidua Mill.)
aboveground biomass European larch Larix decidua Mill. Kruš né hory Mts substitute stands thinning
2015/3/27
This study is focused on substitute European larch stands in the Krušné hory Mts. (northern part of the Czech Republic). Research was conducted within larch thinning experiment Kalek (780 m a.s.l...
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 ...
Dynamics of heartwood formation and axial and radial distribution of sapwood and heartwood in stems of European larch (Larix decidua Mill.)
sapwood heartwood dynamics of heartwood formation social class of tree position European larch
2015/3/12
The study was an attempt to determine the dynamics of heartwood formation and the radial and axial distribution of sapwood and heartwood in stems of European larch (Larix deciduas Mill.) representing ...
Variation of the tree form factor and taper in European larch of Polish provenances tested under conditions of the Beskid Sądecki mountain range (southern Poland)
genotype planting experiment stem profile
2015/3/5
The genetic variation in 20 provenances of European larch, growing under site conditions of the Beskid Sądecki mountain range (experimental area in Krynica), was investigated during a long-term s...
Development of young substitute larch (Larix decidua Mill.) stands after first thinning
substitute forest stands European larch
2015/3/3
European larch (Larix decidua Mill.) is one of the most important tree species in substitute stands of the
Krušné hory Mts. (northern part of the Czech Republic). At present, young larch stands...
Comparison of Norway spruce (Picea abies [L.] Karst.), Scots pine (Pinus sylvestris L.) and European larch (Larix decidua Mill.) stem shape by means of geometrical methods
Norway spruce Scots pine European larch stem shape
2015/3/3
In this article the stem shape is compared in three coniferous tree species: Norway spruce, Scots pine
and European larch. Stem is investigated by means of geometrical methods. Simplified Bookstein ...
Changes in cold hardiness of silver fir and larch abare-rooted seedlings during autumn and spring
cold hardiness electrolyte leakage larch and silver fir bare-rooted seedlings
2015/2/2
The objective of this study was to obtain information about changes in cold hardiness of larch and silver fir seedlings during autumn and spring by help of measurements of electrolyte leakage from sho...
Larch crown diseases in Trentino and South Tyrol
Larix decidua Mycosphaerella laricina Meria laricis Hypodermella laricis Lachnellula wilkommii
2015/2/2
Various attacks of pathogenic fungi on the larch crown were observed in Trentino/South Tyrol, Italy, over the past few years. In 1999, severe defoliation was caused by Mycosphaerella laricina, a rarel...
Adaptation of larch (Larix decidua) of Polish provenances under mountainous conditions of Beskid Sądecki (southern Poland)
European larch provenance genotype planting experiment Beskid Są decki Mts. Poland
2015/2/2
A long-term study carried out within the 1967 All-Poland Larch Provenance Experiment investigated genetic variation in 20 Polish provenances of larch growing under the site conditions of the Beskid S&...
In vitro propagation of European larch (Larix decidua Mill.)
Larix decidua in vitro propagation larch micropropagation shoot multiplication root induction field growth of micropropagated trees
2015/2/2
Methods of in vitro propagation of Larix decidua are described in the paper. The influence of explant source, tree age, genotype, composition of nutrient media and phytohormones on in vitro propagatio...