Zmienność przestrzenna emisji CO2 z gleb leśnych i łąkowych w zachodniej części Wzniesień Łódzkich

Autorzy

• Krzysztof Tadeusz Wroński Uniwersytet Łódzki, Wydział Nauk Geograficznych, Katedra Geografii Fizycznej, ul. Narutowicza 88, 90-139 Łódź
  Tel. +48 504 357430, e-mail: krzysztofwr@tlen.pl

Abstrakt

For this study, the rate of soil respiration was estimated based on monthly measurements of 20 research points representing different types of plant communities. Meadows were found to have the highest rates of soil respiration, whereas rates measured in forests were lower. However, the seasonality of leaf and pine needle decomposition caused large variation in the CO₂ fluxes from forest soils. Furthermore, the carbon content at both, the soil surface and 5 cm below ground, affected spatial differentiation of soil respiration in summer and autumn, while the carbon content at 5 cm below ground also affects the spatial variability of annual CO₂ fluxes from the soil. Amazingly, however, results of research indicate that the carbon content throughout the whole humus layer does not impact soil respiration. It was also observed that changes in relief affected rates of soil respiration due to differences in sunlight exposure and the history of land use, which can markedly reduce the impact of the carbon content at 5 cm below ground on soil respiration.

Słowa kluczowe

• soil respiration
• carbon dioxide
• spatial variability
• tree stands
• felling areas
• relief