Rates of Carbon Dioxide Evolution From the Forest Floor

Abstract

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A comparison of dynamic and static chambers for methane emission measurements from subarctic fens

“…Comparison of dynamic and static chambers for the measurement of carbon dioxide flux from soils also reveals ratios ranging from 1.0 to 2.1, with an average value of about 1.3 (e.g. Cropper et al, 1985;Edwards and Sollins, 1973;Ino and Monsi, 1969;Kucera and Kirkham, 1971;Witkamp, 1966).…”

Effects of soil temperature and moisture on soil respiration in barley and fallow plots

“…As the soil surface becomes dry, the proportion of CO 2 from roots will increase due to a reduction of microbial activity by the low surface moisture. This may explain the wide range of the proportion of root respiration to total soil respiration that is reported in the literature, from negligible (Witkamp 1966), 50% (Biscoe et al 1975;Rochette et al 1997), 60-63% (Da Costa et al 1986, to 70% by Chapman (1979).…”

Impact of deforestation on soil physicochemical characteristics, microbial biomass and microbial activity of tropical soil

“…The basal soil respiration rate in the soil samples collected from two sites was measured at monthly intervals using the alkali absorption technique (Witkamp, 1966). Fresh soil of 500 g, with its moisture content adjusted to 60 per cent by adding sterile water, was placed in a glass container (2 l capacity).…”