Journal ArticleDOI
On the temperature dependence of soil respiration
Jon Lloyd,John Taylor +1 more
TLDR
An empirical equation is presented which yields an unbiased estimator of respiration rates over a wide range of temperatures and provides representative estimates of the seasonal cycle of net ecosystem productivity and its effects on atmospheric CO 2.Abstract:
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 between R and T can, however, be accurately represented by an Arrhenius type equation where the effective activation energy for respiration varies inversely with temperature. An empirical equation is presented which yields an unbiased estimator of respiration rates over a wide range of temperatures. When combined with seasonal estimates of Gross Primary Productivity (GPP) the empirical relationship derived provides representative estimates of the seasonal cycle of net ecosystem productivity and its effects on atmospheric CO 2 (...)read more
Citations
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Journal ArticleDOI
Carbon Dioxide and Methane Fluxes From Tree Stems, Coarse Woody Debris, and Soils in an Upland Temperate Forest
TL;DR: In this paper, the authors measured CO2 and CH4 fluxes from soils, coarse woody debris, and tree stems over the growing season in an upland temperate forest.
Journal ArticleDOI
Temperature sensitivity of forest soil organic matter decomposition along two elevation gradients
Andreas Schindlbacher,Carlos de Gonzalo,Eugenio Díaz-Pinés,Pilar Gorría,Bradley Matthews,Rosa Inclán,Sophie Zechmeister-Boltenstern,Agustín Rubio,Robert Jandl +8 more
TL;DR: In this article, the temperature sensitivity of the soil organic matter decomposition along the slopes of mountain forests in Austria and Spain was analyzed by fitting different temperature response functions to the measured CO2 efflux.
Journal ArticleDOI
Simulated changes in vegetation distribution, land carbon storage, and atmospheric CO2 in response to a collapse of the North Atlantic thermohaline circulation
TL;DR: In this paper, the authors investigated how abrupt changes in the North Atlantic thermohaline circulation (THC) affect the terrestrial carbon cycle and the magnitude and evolution of global terrestrial carbon storage in response to abrupt THC changes.
Journal ArticleDOI
Fungal growth on a common wood substrate across a tropical elevation gradient: Temperature sensitivity, community composition, and potential for above-ground decomposition
TL;DR: Above-ground breakdown of lignocellulose represents an unexplored component of the C cycle in wet tropical forests, and significant variation in fungal community composition across the gradient suggests that the characteristics of fungal decomposer communities are, directly or indirectly, influenced by temperature.
Journal ArticleDOI
Prescribed burning and mechanical thinning effects on belowground conditions and soil respiration in a mixed-conifer forest, California
TL;DR: In this article, the effects of burning and thinning treatments on soil conditions were examined in the Teakettle Experimental Forest and the results indicated that after thinning, soil respiration was controlled more by RH while after burning RS was more influenced by RA.
References
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Journal ArticleDOI
Climate change : the IPCC scientific assessment
TL;DR: A review of the intergovernmental panel on climate change report on global warming and the greenhouse effect can be found in this paper, where the authors present chemistry of greenhouse gases and mathematical modelling of the climate system.
Journal ArticleDOI
Model estimates of CO2 emissions from soil in response to global warming
TL;DR: In this article, the Rothamsted model is used to calculate the amount of CO2 that would be released from the world stock of soil organic matter if temperatures increase as predicted, the annual return of plant debris to the soil being held constant.
Journal ArticleDOI
Reaction kinetics of poikilotherm development.
TL;DR: A stochastic thermodynamic model of poikilotherm development has been derived from the Eyring equation assuming multiple activity states of the underlying developmental control enzymes and the resulting equation has been found applicable to a wide range of organisms.
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