Results 251 to 260 of about 1,757,263 (292)

Automated Monitoring of Soil Respiration

Soil Science Society of America Journal, 2003
We designed, constructed, and tested an automated chamber system for continuously monitoring soil respiration. Our objective was to design a chamber that would permit monitoring of CO 2 efflux rates over long time periods without altering the natural microclimate within the chamber ...
Nelson T. Edwards, Jeffery S. Riggs
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Soil Respiration of Tropical Vegetation types

Ecology, 1967
Soil respiration rates, measured during the dry season of 1966 in Costa Rica by absorption of CO2 through KOH followed by titration with HCI, were lowest in the savanna and the decidous forest (300—400 mg CO2/m2/hr); they were between 1,000 and 2,000 mg CO:2/m2/hr in the gallery forest and the wet forest; and were highest in the secondary growth ...
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Soil Respiration and Carbon Sequestration

Почвоведение, 2023
An increase in the concentration of carbon dioxide in the atmosphere is a trigger for the activation of all processes of the carbon cycle, including soil respiration (SR), since it causes not only an increase in the greenhouse effect of the atmosphere, but also its fertilization.
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On the Temperature Dependence of Soil Respiration

Functional Ecology, 1994
From previously published measurements of soil respiration rate (R) and temperature (T) the goodness of fit of various R vs T relationships was evaluated. Exponential (Q 10 ) and conventional Arrhenius relationships between T and R cannot provide an unbiased estimate of respiration rate. Nor is a simple linear relationship appropriate. The relationship
J. Lloyd, J. A. Taylor
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Soil Respiration and Litter Decomposition

2003
Emissions of CO2 from the organic and mineral soil horizons into the atmosphere are considered a good representation of soil respiration (R soil) when the diffusion-driven losses to the atmosphere are at equilibrium with the biological rates of CO2 production (Hanson et al. 2000). R soil is the net effect of the biological activity of autotrophic roots
Paul J. Hanson, Elizabeth G. O’Neill, M. Lala S. Chambers, Jeffery S. Riggs, J. Devereux Joslin, Mark H. Wolfe   +5 more
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Soil Respiration

Advances in Biology Laboratory Education, 2020
Randi L. Mewhort, Christina G. Elliott, Donna Wakeford   +2 more
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Soil Respiration and Changes in Soil Carbon Stocks

1995
Abstract The pool of carbon in soils is one of the largest near-surface stores of carbon on earth. Although estimates vary widely, most workers now agree that between 1400 and 1500 petagrams (Pg) (= 1015 g)of carbon are contained in soil organic matter, which includes undecomposed litter on the soil surface and humic materials ...
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Soil respiration in an apple orchard

Environmental and Experimental Botany, 1996
Abstract To investigate why the largest CO2 concentration occurred before sunrise at 0.6 m below an apple tree canopy, seasonal and diurnal fluctuations in soil and grass respiration were recorded in an apple orchard near Bonn, Germany between May 1994 and April 1995 with a portable, battery-driven infrared gas analyser and a soil respiration chamber.
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Overestimation of global soil heterotrophic respiration

Science Bulletin, 2022
Yue, He, Jinzhi, Ding
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Soil respiration

2023
Jeremiah D. Vallotton, Sergey Blagodatsky, Adrian Unc   +2 more
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