[PDF] Top 20 Thinning schedules for spruce stands

... obvious reasons for the discrepancy. Firstly, the economic criteria differ. Most commonly, a discounted net present value of revenues has been maximized, using an external discounting interest rate [2, 18, 3, 4, 8]. It ... See full document

... of stands by tracks is often the first phase of forest ...spruce stands. Research involves several variants of European thinning experiment IUFRO CZ 14 Machov situated in Eastern ...without ... See full document

... The study focuses on determination of aboveground organ’s mass using allometric relationships in Norway spruce stands with diff erent type of thinning management – thinning from below (TfB) and ... See full document

... mixed spruce beech stands compared with the results from pure spruce monocultures (Novák, Slodičák 2004; Podrázský, Remeš 2005; Podrázský et ...coniferous stands (Prescott et ...with ... See full document

... on unthinned control stand (plot 1) and the second half on comparative stand with very heavy thinning from below on plot 3. Collectors were placed on both plots in transects with regular spacing (4 m) in order to ... See full document

... forest stands (K ANTOR , K LÍMA 1997). Thinning of coniferous trees is one of the possibilities to achieve more intensive soil activity, in- creased supply of ammonium nitrogen and reduction of its ... See full document

... of spruce is significantly disturbed; only few stand groups show higher mortality or defoliation over 60%, where the chance of regeneration is ...some stands thinning was done recently (removal of ... See full document

... a long time, and was virtually the fi rst fundamental goal of tending (W 2007). However, today researchers see this contribution either as relatively minor (P 2005) or even entirely insignifi cant ... See full document

... larch stands are located at higher altitudes where light is one of the most important factors for ...species, spruce or pine should be integrated as far as ... See full document

... among spruce stands was reported, ...investigated spruce stands are in the range of published ...the spruce stands growth – geographic and orographic position, site condition, ... See full document

... pre-commercial thinning (PCT), and ordi- nary PCT of seedling stands, includes cleaning the brush and thinning the stand to a suitable growth den- ...young stands as well as the timing and ... See full document

... (3) Using a hatchet, notches were made along the stem girth and 1 ml of the arboricide solution was applied into them with a dosing pipette (“hatchet” treatment). The number of notches and the amount of the applied ... See full document

... first thinning in mixed stands are not broadly experienced by forestry ...the thinning of a mixed stand, we studied thinned and unthinned mixtures of Norway spruce with European beech on two ... See full document

... for thinning research since ...Norway spruce (Picea abies ...Norway spruce stands in 1958 (Rumburk, Mostek, Vim- perk I, Vimperk II and ...of thinning experiment was to compare two ... See full document

... tive thinning percents are influenced more significantly only by two factors, namely age and ...stocking thinning percent also decreases more ...of stands was registered only on the basis of evident ... See full document

... The problem related to the assessment of aspen at stand-level inventories is that the low density of the aspen trees results in high estimates of sampling errors. It is also possible that aspens are not separated from ... See full document

... predicted many years ago (Orzeł 1993; Barszcz et al. 1996; Kozak 1996) and preventative mea- sures were taken in 2003 in the framework of the “Programme for the Beskid Mountains”. Its goal was to convert Norway ... See full document

... The spruce-fir-beech dominated forest stands in Litschau in the Austrian part of the Bohemian Massif were converted by former forest management practices into pure Norway spruce stands and are ... See full document

... In August, the development of P. chalcographus was partly delayed on the lower side of the stem, which was confirmed at the end of the growing sea- son. On lying breaks the only generation of P. chal- cographus developed ... See full document

... ABSTRACT: The mycological conditions on study plots established in forests growing on former agricultural farm lands were studied. In young spruce stand (8–10 years) reduced and unstable spectrum of macromycetes ... See full document