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Ivanov, AV; Braun, M; Tataurov, VA.
(2018): Seasonal and Daily Dynamics of the CO2 Emission from Soils of Pinus koraiensis Forests in the South of the Sikhote-Alin Range
EURASIAN SOIL SCI+. 2018; 51(3): 290-295. FullText FullText_BOKU

The presented study shows the results of measuring soil respiration in typical burozems (Dystric Cambisols) under mixed Korean pine-broadleaved forests in the southern part of the Primorskii (Far East) region of Russia growing under conditions of monsoon climate. The measurements were performed in 2014-2016 by the chamber method with the use of a portable infrared gas analyzer. Relative and total values of the CO2 efflux from the soil surface on four model plots were determined. The intensity of summer emission varied from 2.25 to 10.97 mu mol/(m(2) s), and the total CO2 efflux from the soils of four plots varied from 18.84 to 25.56 mol/m(2). It is shown that a larger part of seasonal variability in the soil respiration is controlled by the soil temperature (R (2) = 0.5-0.7); the soil water content also has a significant influence on the CO2 emission determining about 10% of its temporal variability. The daily dynamics of soil respiration under the old-age (200 yrs) forest have a significant relationship with the soil temperature (R (2) = 0.51). The pyrogenic transformation of Pinus koraiensis forests into low-value oak forests is accompanied by an increase in the DD-2 efflux from the soil.
Authors BOKU Wien:
Braun Martin
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Find related publications in this database (Keywords)
soil respiration
CO2 emission
soil temperature
soil water content
Pinus koraiensis forests
typical burozems (Dystric Cambisols)

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