Ovlivnění produkčních podmínek borových porostů odstraňováním biomasy při výchovných zásazích

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of biomass removing by thinning on production preconditions in Scots pine stands

Popis výsledku v původním jazyce

Thinning reduces the number of trees participated in nutrient return by liter-fall. This problem can be very important on the naturally nutrient-poor sites, where commercial forests with pine stands are cultivated. The presented paper analyses the effectof thinning on amount of nutrients returned by litter-fall in differently thinned young Scots pine (Pinus sylvestris L.) stands as the principal condition of their production. The results showed that the total weight of litter-fall in observed young pine stand at the age of 8 ? 19 years varied from 1,300 to 5,400 kg.ha-1. During the 12-year period of observation, 44.2 thousand kg.ha-1 of dry biomass fall down on control variant, whereas periodic litter-fall on thinned variant represented 36.4 thousandkg.ha-1. Therefore, during the period of observation, lower amount of nutrients (per 1 ha about 63 kg of N, 9 kg of K, 34 kg of Ca and 2 kg of Mg) was stored under thinned stand compared to unthinned control stand.

Název v anglickém jazyce

Effect of biomass removing by thinning on production preconditions in Scots pine stands

Popis výsledku anglicky

Thinning reduces the number of trees participated in nutrient return by liter-fall. This problem can be very important on the naturally nutrient-poor sites, where commercial forests with pine stands are cultivated. The presented paper analyses the effectof thinning on amount of nutrients returned by litter-fall in differently thinned young Scots pine (Pinus sylvestris L.) stands as the principal condition of their production. The results showed that the total weight of litter-fall in observed young pine stand at the age of 8 ? 19 years varied from 1,300 to 5,400 kg.ha-1. During the 12-year period of observation, 44.2 thousand kg.ha-1 of dry biomass fall down on control variant, whereas periodic litter-fall on thinned variant represented 36.4 thousandkg.ha-1. Therefore, during the period of observation, lower amount of nutrients (per 1 ha about 63 kg of N, 9 kg of K, 34 kg of Ca and 2 kg of Mg) was stored under thinned stand compared to unthinned control stand.

Druh

O - Ostatní výsledky

CEP obor

GK - Lesnictví

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů