DDP - Zverejnená diplomová práca

Pôdna respirácia v diferencovane manažovaných lesných porastoch na kalamitných plochách vo Vysokých Tatrách v r. 2020

Autor
Šimková, Ivana
Školiteľ
Fleischer, Peter
Oponent
Homolová, Zuzana
Škola
Technická univerzita vo Zvolene LF KIOLK (LF)
Rok odovzdania
2021
Počet strán
60.s
Trvalý odkaz - CRZP
https://opac.crzp.sk/?fn=detailBiblioForm&sid=D17D9F3E5A956C16E11D95884ED0
Primárny jazyk
slovenčina

Typ práce
Diplomová práca

Študijný odbor
4219 | *lesníctvo

Dátum zaslania práce do CRZP
07.05.2021

Dátum vytvorenia protokolu
08.05.2021

Dátum doručenia informácií o licenčnej zmluve
22.06.2021

Práca je zverejniteľná od
ihneď

Elektronická verzia
 Prehliadať
Wind represents one of the most important factors disrupting forest ecosystems. The rising frequency of strong winds is thought to be a consequence of climate change as a result of rising CO2 content of the atmosphere. The most important terrestrial source of CO2 is soil respiration, which affects the climate change. Large-scale effects were monitored for 16 years using three differentially managed regions in the High Tatras. Our research evaluated soil respiration, soil temperature and humidity, as well as ammonia concentrations in soil water content. In the EXT region samples, the carbon and nitrogen contents, as well as pH were evaluated. The quantification of the CO2 flux was done using the gasometric method, which is in turn based on measuring the CO2 content in enclosed chambers. The results showed only a small difference among all monitored regions. While the temperature at 2 cm soil depth showed significant differences among all three regions, in case of 10 cm soil depth the only difference found was between both the EXT and NEX with respect to REF. In addition to that, significant differences were found also for the soil moisture content. Lysimeters were used to measure the ammonia content in soil water. The highest average values were measured in the NEX region containing unprocessed calamitous matter. Positive correlation were found between the soil respiration and other factors, with the strongest correlation found for temperature. The EXT region showed strong spatial variability in the carbon content. In the top-soil, it was found to be 16,8 to 37,7%, while in the mineral soils it was 4,4 to 11,7%. Correlation analysis showed only a weak negative relationship between carbon content and CO2 concentrations. No strong spatial variability was found for the nitrogen content in the EXT region, and only very weak relationship was found for the nitrogen content and the CO2 concentrations. According to pH, these were soils with extremely high to high acid reactions, weakly correlated with their CO2. These results demonstrate that 16 years after the wind calamity in High Tatras, the differences between the three managed regions continue to gradually level off.

Verzia systému: 6.2.61.5 z 31.03.2023 (od SVOP)