Litterfall nutrient return in thinned young stands with Douglas fir

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020702%3A_____%2F20%3AN0000012" target="_blank" >RIV/00020702:_____/20:N0000012 - isvavai.cz</a>

Výsledek na webu

<a href="https://sciendo.com/article/10.2478/forj-2020-0006" target="_blank" >https://sciendo.com/article/10.2478/forj-2020-0006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/forj-2020-0006" target="_blank" >10.2478/forj-2020-0006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Litterfall nutrient return in thinned young stands with Douglas fir

Popis výsledku v původním jazyce

The use of Douglas fir (DF) is on the increase in the Czech Republic. This tree species shows a good production and also a beneficial impact on soil to some extent. We studied both amount and properties of litterfall in 18 to 20-year-old stands with DF in 2011. Two experimental plots were DF-dominated and one showed ca. 20-30% share of Scots pine (SP) at the beginning of observation. The experiments consisted of two treatments such as unthinned control and 50-62% trees' density reduction accounting for 43-59% basal area reduction. Litterfall was collected using litter traps of 0.25 m2 area in 3-4 traps per treatment. Forest floor L and F were taken in 2011 and 2018 to investigate the development of their amount after thinning. Both whole-period sum and mean annual litterfall were reduced after thinning compared to controls. The mean annual litterfall totaled ca. 3 t ha-1 in 20-year-old DF-dominated stands. This amount represents an annual nutrient return of 30-40 kg N, 1-3 kg P, 3-5 kg K, 12-30 kg Ca and 1-2 kg Mg per one hectare. The reduction of the annual litterfall was more pronounced in DF-dominated stands. All thinned plots showed increased decomposition rates reflected in lower total L+F amounts in both DF-dominated plots whereas unthinned plots accumulated more L+F at the end. The mixed DF-SP plot showed reduced L and increased F layer amounts in both unthinned and thinned treatments with only minor change to L+F sum between 2011 and 2018.

Název v anglickém jazyce

Litterfall nutrient return in thinned young stands with Douglas fir

Popis výsledku anglicky

The use of Douglas fir (DF) is on the increase in the Czech Republic. This tree species shows a good production and also a beneficial impact on soil to some extent. We studied both amount and properties of litterfall in 18 to 20-year-old stands with DF in 2011. Two experimental plots were DF-dominated and one showed ca. 20-30% share of Scots pine (SP) at the beginning of observation. The experiments consisted of two treatments such as unthinned control and 50-62% trees' density reduction accounting for 43-59% basal area reduction. Litterfall was collected using litter traps of 0.25 m2 area in 3-4 traps per treatment. Forest floor L and F were taken in 2011 and 2018 to investigate the development of their amount after thinning. Both whole-period sum and mean annual litterfall were reduced after thinning compared to controls. The mean annual litterfall totaled ca. 3 t ha-1 in 20-year-old DF-dominated stands. This amount represents an annual nutrient return of 30-40 kg N, 1-3 kg P, 3-5 kg K, 12-30 kg Ca and 1-2 kg Mg per one hectare. The reduction of the annual litterfall was more pronounced in DF-dominated stands. All thinned plots showed increased decomposition rates reflected in lower total L+F amounts in both DF-dominated plots whereas unthinned plots accumulated more L+F at the end. The mixed DF-SP plot showed reduced L and increased F layer amounts in both unthinned and thinned treatments with only minor change to L+F sum between 2011 and 2018.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Central European Forestry Journal

ISSN

2454-034X

e-ISSN

2454-0358

Svazek periodika

66

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

7

Strana od-do

78-84

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85092054638