Calorimetric approach to metabolic carbon conversion efficiency in soils

被引：37

作者：

Barros, N. ^{[1
]}

Salgado, J. ^{[1
]}

Rodriguez-Anon, J. A. ^{[1
]}

Proupin, J. ^{[1
]}

Villanueva, M. ^{[1
]}

Hansen, L. D. ^{[2
]}

机构：

[1] Univ Santiago de Compostela, Dept Appl Phys, Santiago De Compostela, Spain

[2] Brigham Young Univ, Provo, UT 84602 USA

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2010年 / 99卷 / 03期

关键词：

Metabolic efficiency; Calorespirometry; Soils; Energy balance; MICROBIAL-GROWTH; ENERGY-BALANCE; HEAT; CO2; GLUCOSE; MASS;

D O I：

10.1007/s10973-010-0673-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Soil carbon is the largest reservoir of organic carbon on the planet and CO2 production by soil thus has potentially large effects on atmospheric CO2. Carbon sequestration in soil is determined by the metabolic efficiency (substrate carbon conversion efficiency) of soil micro-organisms. That could be measured by calorespirometric methodology (parallel measurement of metabolic heat rate and CO2 production rate) and by theoretical thermodynamic models. Carbon conversion efficiency of the glucose degradation reaction in soil is calculated from both the calorespirometric ratio of heat rate to CO2 rate and from energy and mass balance models combined with calorimetric heat rates. Results obtained, 0.77 and 0.75, are in good agreement.

引用

页码：771 / 777

页数：7

共 26 条

[1]

[Anonymous], KYOT PROT UN FRAM CO

[2] The Dry Limit of Microbial Life in the Atacama Desert Revealed by Calorimetric Approaches [J].

Barros, N. ;

Feijoo, S. ;

Salgado, J. ;

Ramajo, B. ;

Garcia, J. R. ;

Hansen, L. D. .

ENGINEERING IN LIFE SCIENCES, 2008, 8 (05) :477-486

[3] A mass and energy balance to provide microbial growth yield efficiency in soil -: Sensitivity to metal layering phosphates [J].

Barros, N. ;

Feijoo, S. ;

Simoni, J. A. ;

Airoldi, C. ;

Ramajo, B. ;

Espina, A. ;

Garcia, J. R. .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2008, 93 (02) :657-665

[4] Calorimetry and soil [J].

Barros, N. ;

Salgado, J. ;

Feijoo, S. .

THERMOCHIMICA ACTA, 2007, 458 (1-2) :11-17

[5] Calorimetric determination of the effect of ammonium-iron(II) phosphate monohydrate on Rhodic Eutrudox Brazilian soil [J].

Barros, N ;

Airoldi, C ;

Simoni, JA ;

Ramajo, B ;

Espina, A ;

García, JR .

THERMOCHIMICA ACTA, 2006, 441 (01) :89-95

[6] A combined mass and energy balance to provide bioindicators of soil microbiological quality [J].

Barros, N ;

Feijóo, S .

BIOPHYSICAL CHEMISTRY, 2003, 104 (03) :561-572

[7] The development of direct and indirect methods for the study of the thermodynamics of microbial growth [J].

Battley, EH .

THERMOCHIMICA ACTA, 1998, 309 (1-2) :17-37

[8]

Battley EH., 1987, Energetics of microbial growth

[9] KINETICS OF GLUCOSE-UPTAKE BY SOIL-MICROORGANISMS [J].

COODY, PN ;

SOMMERS, LE ;

NELSON, DW .

SOIL BIOLOGY & BIOCHEMISTRY, 1986, 18 (03) :283-289

[10] SIMULTANEOUS MEASUREMENT OF METABOLIC HEAT RATE, CO2 PRODUCTION, AND O2 CONSUMPTION BY MICROCALORIMETRY [J].

CRIDDLE, RS ;

FONTANA, AJ ;

RANK, DR ;

PAIGE, D ;

HANSEN, LD ;

BREIDENBACH, RW .

ANALYTICAL BIOCHEMISTRY, 1991, 194 (02) :413-417

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