Povzetek
The present study addresses the short-term effects of different harvest intensities under close-to-nature selective management on the upper soil layers in Slovenian and Bosnian Dinaric karst fir-beech forests. The different harvest intensities coincided with the single-tree and irregular shelterwood management, common in the region. The effect of harvesting intensity on the upper soil layers (Ol, Of, Ol and 0%10 cm mineral soil) was investigated by a repeated measurements experiment in Slovenia on 27 research plots in close-to nature managed forests. The properties of the upper layers (concentration of SOC and TN, C/N ratio, weights, BD and SOC stocks) were analyzed twice, before (2011) and after (2014) treatment of 50% and 100% harvest intensity in relation to the total standing growing stock of trees. As a control, we used no-treatment <20% harvesting intensity plots. To extend this experiment, we added three comparable plots from the Bosnian site: one in an old-growth forest with 0% harvest intensity and two in the managed forest with <20% harvest intensity. The results of the assessment of mean differences indicated a significant influence of harvesting intensity on the decrease in SOC, TN concentrations, weights and SOC stocks in the organic layers and the increase in BD and SOC stocks in the 0%10 cm mineral soil. The highest relative decreases in Ol, Of and Oh SOC stocks occurred in 50% (%10 and %38%) and 100% (%16 and %49%) harvest intensities. Negligible relative differences in both organic and 0%10 cm mineral layers were found for the <20% harvest intensity in the region. The change in forest light conditions resulting from differences in canopy openness as a function of applied harvest intensity explained the significant difference in the properties of the upper soil layers. The impact of the short-term losses in SOC stocks, in terms of overall soil productivity, may depend on the regeneration dynamics and melioration methods.
Ključne besede
sonaravno gospodarjenje z gozdovi;intenzivnost sečnje;gozdna tla;organski ogljik;close-to-nature forest management;harvest intensity;Calcic Cambisol;forest soil;soil organic carbon;
Podatki
Jezik: |
Angleški jezik |
Leto izida: |
2021 |
Tipologija: |
1.01 - Izvirni znanstveni članek |
Organizacija: |
UL - Univerza v Ljubljani |
UDK: |
630*11 |
COBISS: |
62575875
|
ISSN: |
1999-4907 |
Št. ogledov: |
596 |
Št. prenosov: |
365 |
Ocena: |
0 (0 glasov) |
Metapodatki: |
|
Ostali podatki
Sekundarne ključne besede: |
sonaravno gospodarjenje z gozdovi;intenzivnost sečnje;gozdna tla;organski ogljik; |
Vrsta dela (COBISS): |
Članek v reviji |
Komentar vira: |
Nasl. z nasl. zaslona;
Opis vira z dne 10. 5. 2021;
|
Strani: |
15 str. |
Letnik: |
ǂVol. ǂ12 |
Zvezek: |
ǂiss. ǂ5 |
Čas izdaje: |
2021 |
DOI: |
10.3390/f12050581 |
ID: |
14696214 |