搜索结果: 1-4 共查到“森林测量学 spruce”相关记录4条 . 查询时间(0.078 秒)
Structure and accumulation of litterfall under Norway spruce stands in connection with thinnings
litterfall nutrients thinning Norway spruce
2015/2/2
The effect of thinning on the structure and accumulation of litterfall and holorganic horizons (L, F, H) in young Norway spruce stands was investigated. The research was conducted on a Norway spruce t...
Changes in trends of the height growth of spruce and pine derived from continuous measurements in forest management plans of Kostelec nad Černymi lesy and on pilot research plots in the Czech Republic
spruce pine mean stand height height growth trends current and mean height increment stand age year forest vegetation zones forest management plan (FMP) pilot research plots (PRP)
2015/2/2
In changing growth conditions, methodical procedures should concentrate on the investigation of processes currently under way in forests. Many studies have shown that present models of forest growth p...
Induction thinnings of mountain spruce forests
spruce induction thinnings thinning percent type of thinning thinning interval thinning index
2015/2/2
The paper presents models of decennial thinning percents of spruce in mountain locations. They were derived by regression fitting from empirical material with 108 measurements on 93 research plots. Mo...
Change of cold hardiness in bare-rooted Norway spruce planting stock during autumn and its effect on survival
cold hardiness electrolyte leakage lifting date
2015/1/29
The objective of this study was to test a method of measurements of electrolyte leakage for determining an optimal autumn lifting date. The second objective was to obtain information about the effects...