Ontology highlight
ABSTRACT:
SUBMITTER: Ma J
PROVIDER: S-EPMC3685845 | biostudies-other | 2013
REPOSITORIES: biostudies-other
Ma Jie J Wang Zhong-Yuan ZY Stevenson Bryan A BA Zheng Xin-Jun XJ Li Yan Y
Scientific reports 20130101
An 'anomalous' negative flux, in which carbon dioxide (CO2) enters rather than is released from the ground, was studied in a saline/alkaline soil. Soil sterilization disclosed an inorganic process of CO2 dissolution into (during the night) and out of (during the day) the soil solution, driven by variation in soil temperature. Experimental and modeling analysis revealed that pH and soil moisture were the most important determinants of the magnitude of this inorganic CO2 flux. In the extreme cases ...[more]