Thermodynamics of Soil Microbial Metabolism: Applications and Functions
Abstract
:Featured Application
Abstract
1. Introduction
2. Materials and Methods
2.1. Thermodynamic Characterization of SOM
2.2. Thermodynamics of the Soil Microbial Metabolism (SMM)
3. Results
3.1. Thermodynamic Characterization of SOM
3.2. Thermodynamics of SOM Microbial Decomposition
3.2.1. Thermodynamic State Variables and Soil Microbial Diversity
3.2.2. Microbial Diversity and Metabolic Carbon Use Efficiency
4. Discussion
5. Conclusions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Samples | Ctot (%) | Corg (%) | H (%) | N (%) | SOM (%) |
---|---|---|---|---|---|
ROG LF | 39 | 34 | 5.0 | 1.6 | 73 |
BW LF | 46 | 41 | 6.5 | 2.5 | 81 |
NF LF | 44 | 42 | 6.5 | 2.0 | 80 |
DC LF | 50 | 42 | 5.5 | 1.4 | 95 |
G LF | 51 | 46 | 5.3 | 1.7 | 97 |
K LF | 51 | 40 | 6.4 | 1.7 | 96 |
ROG M | 5 | 5 | 0.3 | 0.3 | 10 |
BWM | 11 | 9 | 1.0 | 0.6 | 23 |
NFM | 12 | 8 | 1.4 | 0.5 | 16 |
DCM | 6 | 4 | 0.7 | 0.3 | 7 |
G M | 5 | 4 | 0.5 | 0.2 | 9 |
KM | 10 | 10 | 1.4 | 0.5 | 21 |
Samples | −QSOM kJ g−1SOM LF | −QSOM kJ g−1SOM M | −∆cHSOM kJ mol−1C LF | −∆cHSOM kJ mol−1C M |
---|---|---|---|---|
ROG | 15.4 | 21.9 | 449 | 617 |
BW | 15.1 | 20.7 | 441 | 586 |
NF | 15.1 | 22.2 | 440 | 624 |
DC | 15.0 | 26.4 | 437 | 734 |
G | 16.4 | 25.0 | 475 | 697 |
K | 15.9 | 21.3 | 461 | 602 |
Samples | γSOMR LF | γSOMS&O LF | γSOMR M | γSOMS&O M |
ROG | 3.90 | 4.11 | 5.36 | 5.66 |
BW | 3.83 | 4.05 | 5.10 | 5.39 |
NF | 3.83 | 4.04 | 5.43 | 5.72 |
DC | 3.80 | 4.01 | 6.38 | 6.73 |
G | 4.13 | 4.36 | 6.06 | 6.39 |
K | 4.01 | 4.23 | 5.23 | 5.22 |
Samples | −∆cGSOMR kJ mol−1C LF | −∆cGSOMS&O kJ mol−1C LF | −∆cGSOMR kJ mol−1C M | −∆cGSOMS&O kJ mol−1C M |
---|---|---|---|---|
ROG | 455 | 454 | 594 | 624 |
BW | 448 | 446 | 568 | 593 |
NF | 448 | 445 | 599 | 631 |
DC | 445 | 442 | 689 | 742 |
G | 477 | 481 | 659 | 705 |
K | 465 | 466 | 581 | 609 |
Samples | ∆cSSOMR J K−1mol−1C LF | ∆cSSOMS&O J K−1mol−1C LF | ∆cSSOMR J K−1mol−1C M | ∆cSSOMS&O J K−1mol−1C M |
ROG | 20.1 | 16.8 | −79.3 | 23.5 |
BW | 23.5 | 16.8 | −60.4 | 23.5 |
NF | 26.8 | 16.8 | −83.9 | 23.5 |
DC | 26.9 | 16.8 | −151.0 | 26.9 |
G | 6.7 | 20.1 | −127.5 | 26.9 |
K | 13.4 | 16.8 | −70.5 | 23.5 |
Samples | −CR kJ mol−1CO2-C LF | −CR kJ mol−1CO2-C M | γ LF | γ M | −∆rGSOM kJmol−1C LF | −∆rGSOM kJmol−1C M | ∆rSSOM JK−1mol−1C LF | ∆rSSOM JK−1mol−1C M |
---|---|---|---|---|---|---|---|---|
ROG | 423 ± 30 | 280 ± 7 | 3.88 | 2.57 | 427 | 283 | 16.0 | 10.6 |
BW | 507 ± 19 | 276 ± 9 | 4.65 | 2.53 | 513 | 279 | 19.2 | 10.5 |
NF | 312 ± 10 | 253 ± 12 | 2.86 | 2.32 | 316 | 256 | 11.8 | 9.6 |
DC | 310 ± 44 | 400 ± 68 | 2.85 | 3.67 | 315 | 405 | 11.8 | 15.2 |
G | 327 ± 41 | 485 ± 9 | 3.00 | 4.45 | 332 | 490 | 12.4 | 18.4 |
K | 355 ± 51 | 421 ± 17 | 3.26 | 3.87 | 359 | 427 | 13.4 | 16.0 |
Samples | Taxa_S Bacteria | Taxa_S Fungi | Shannon Bacteria | Shannon Fungi | −∆cHSOM kJmol−1C | −∆cGSOM kJmol−1C | −CR kJmol−1CO2-C | −∆rGSOM kJmol−1C |
---|---|---|---|---|---|---|---|---|
Leonardite | 7 | 21 | 1.92 | 2.07 | 538 | 554 | 273 ± 14 | 276 |
Pahokee peat | 8 | 15 | 1.93 | 2.19 | 545 | 551 | 463 ± 20 | 468 |
Cambisol pasture | 28 | 11 | 3.07 | 2.20 | 489 | 495 | 495 ± 21 | 500 |
Cambisol pine | 6 | 21 | 1.67 | 2.90 | 539 | 544 | 239 ± 18 | 242 |
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Barros, N. Thermodynamics of Soil Microbial Metabolism: Applications and Functions. Appl. Sci. 2021, 11, 4962. https://doi.org/10.3390/app11114962
Barros N. Thermodynamics of Soil Microbial Metabolism: Applications and Functions. Applied Sciences. 2021; 11(11):4962. https://doi.org/10.3390/app11114962
Chicago/Turabian StyleBarros, Nieves. 2021. "Thermodynamics of Soil Microbial Metabolism: Applications and Functions" Applied Sciences 11, no. 11: 4962. https://doi.org/10.3390/app11114962