TITLE:
Soil Respiration in Drying of an Organic Soil
AUTHORS:
Zofia Fischer, Pavel Blažka
KEYWORDS:
RQ, Anoxia, Storage of CO2, Changes of Soil Volume
JOURNAL NAME:
Open Journal of Soil Science,
Vol.5 No.9,
August
31,
2015
ABSTRACT: Drying of
soil was linearly related to time, soil volume decreased and ratio of air
within the soils increased. Respiration was related with decreasing humidity,
storage of CO2 in soil water results in RQ 2 stored was aerated when its
solvent-water evaporated and access of air into the soil increased; eventually
RQ = 1.0 in the last days of the experiment. Respiration of the experimental
soil stopped when GWC reached 0.15. ΣRQ for the whole process is about 0.7, a
bit higher in experiments with less soil suggesting less anoxia.