2001
DOI: 10.1016/s0378-3774(00)00113-x
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Parameters affecting water vapor adsorption by the soil under semi-arid climatic conditions

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Cited by 64 publications
(57 citation statements)
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“…This should, however, not be mistaken for the temperature dependency of respiration, given that attributing the atypical observations to biological respiration would come down to Q 10 values (the factor by which the soil respiration rate increases with a 10°rise in temperature) exceeding 100, which is biologically impossible (Davidson and Janssens, 2006). During the nighttime, on the other hand, the re-humidification of the soil that is observed during dry summers (due to condensation and hydraulic uplifting of water from deeper layers) (Kosmas et al, 2001;Verhoef et al, 2006), the lack of surface heating, and the lower level of air turbulence, limit the nocturnal ventilation and allow soil CO 2 concentrations to rise again. Figure 4 gives an overview of the daily cycle.…”
Section: Discussionmentioning
confidence: 99%
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“…This should, however, not be mistaken for the temperature dependency of respiration, given that attributing the atypical observations to biological respiration would come down to Q 10 values (the factor by which the soil respiration rate increases with a 10°rise in temperature) exceeding 100, which is biologically impossible (Davidson and Janssens, 2006). During the nighttime, on the other hand, the re-humidification of the soil that is observed during dry summers (due to condensation and hydraulic uplifting of water from deeper layers) (Kosmas et al, 2001;Verhoef et al, 2006), the lack of surface heating, and the lower level of air turbulence, limit the nocturnal ventilation and allow soil CO 2 concentrations to rise again. Figure 4 gives an overview of the daily cycle.…”
Section: Discussionmentioning
confidence: 99%
“…In dryer regions or periods, daytime evaporative water losses induce oversaturation of DIC and thus precipitation of calcium carbonate and associated production of CO 2 . In dry conditions, these daytime water losses are often compensated during the night, at least partly, by water vapor condensation or adsorption (Kosmas et al, 2001;Verhoef et al, 2006), causing undersaturation of DIC that leads to the reverse reactions: dissolution of carbonates and CO 2 uptake. If this dissolution exceeds CO 2 production within the soil, then nighttime CO 2 uptake from the atmosphere could occur, as occasionally reported in literature (Hastings et al, 2005;Kowalski et al, 2008).…”
Section: Introductionmentioning
confidence: 99%
“…The programming software Ansys was used for the simulation with the finite element method, allowing the study of the behaviour of the active working part, the normal stress being analysed in real conditions, at various depths and velocities for a soil with a claysandy texture [8,9].…”
Section: Methodsmentioning
confidence: 99%
“…Calcic nodules are much different from soil particles in chemical and physical properties, resulting in the evaporation process in soil containing calcic nodules to be different from homogeneous soil [9][10][11]. First, calcic nodules can modify soil configuration and surface properties, leading to the changes of surface roughness and soil reflectivity that is closely linked to soil thermal property [12].…”
Section: Introductionmentioning
confidence: 99%