Preferential Erosion of Soil Organic Carbon and Fine-Grained Soil Particles—An Analysis of 82 Rainfall Simulations
Abstract
:1. Introduction
2. Materials and Methods
2.1. Sites and Rainfall Simulation
2.2. Sampling, Laboratory Analyses, and Calculations
2.3. Statistical Analyses
3. Results
3.1. SOC Content in the Eroded Soil and the Soil Loss Rate
3.2. Enrichment Ratio of SOC
3.3. Correlations
4. Discussion
4.1. Relationships between the Soil Loss Rate, Soil Texture, and SOC Content
4.2. Enrichment of SOC in the Eroded Material
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Site | GPS Location | Total of Rainfall Simul. | Slope Gradient | Clay Content | Silt Content | Sand Content | Texture Class | SOC Content | Bulk Density |
---|---|---|---|---|---|---|---|---|---|
(%) | (g kg−1) | (g kg−1) | (g kg−1) | (g kg−1) | (g cm−3) | ||||
Jedouchov | 49.5795028N, 15.4489581E | 3 | 12.5 | 86 | 274 | 640 | SL | 13.0 | 1.65 |
Jevíčko 1 | 49.6257850N, 16.7212519E | 1 | 11.8 | 257 | 490 | 253 | L | 10.3 | (n.d.) 3 |
Jevíčko 2 | 49.6560531N, 16.7088942E | 10 | 9.3 | 234 | 533 | 234 | SiL | 13.0 | 1.53 |
Jevíčko 3 | 49.6239792N, 16.7285842E | 3 | 9.4 | 257 | 684 | 59 | SiL | 18.6 | 1.31 |
Petrovice 1 | 49.5684642N, 14.3257247E | 4 | 13.3 | 181 | 273 | 546 | SL | 10.5 | 1.55 |
Petrovice 2 | 49.5523536N, 14.3295014E | 8 | 11.7 | 73 | 254 | 674 | SL | 10.7 | 1.44 |
Petrovice 3 | 49.5617119N, 14.3204194E | 3 | 9.1 | 75 | 214 | 711 | SL | 8.1 | 1.45 |
Porešín | 49.5379558N, 14.3668522E | 3 | 15.1 | 43 | 255 | 702 | SL | 10.7 | 1.41 |
Puclice | 49.5864069N, 13.0128503E | 7 | 11.5 | 97 | 460 | 444 | L | 15.5 | 1.44 |
Skoupý 1 | 49.5798861N, 14.3581947E | 3 | 12.4 | 61 | 365 | 574 | SL | 13.8 | 1.25 |
Skoupý 2 | 49.5803894N, 14.3593669E | 3 | 13.4 | 61 | 365 | 574 | SL | 15.5 | 1.42 |
Skoupý 3 | 49.5763589N, 14.3567811E | 2 | 15.6 | 85 | 186 | 729 | SL | 9.4 | 1.57 |
Solopysky 1 | 50.2591408N, 13.7416328E | 13 | 17.0 | 256 | 444 | 300 | L, CL 1 | 14.2 | 1.49 |
Solopysky 2 | 50.2562844N, 13.7345892E | 5 | 9.0 | 278 | 432 | 290 | L, CL 2 | 10.7 | 1.38 |
Valečov | 49.6388550N, 15.4891042E | 3 | 9.6 | 110 | 235 | 655 | SL | 9.7 | 1.39 |
Věž 1 | 49.5644553N, 15.4517247E | 3 | 8.6 | 129 | 296 | 575 | SL | 9.5 | 1.41 |
Věž 2 | 49.5751233N, 15.4700092E | 3 | 10.7 | 96 | 322 | 582 | SL | 12.1 | 1.28 |
Věž 3 | 49.5545625N, 15.4507564E | 2 | 10.2 | 99 | 389 | 512 | L | 10.7 | 1.20 |
Věž 4 | 49.5629433N, 15.4496219E | 3 | 9.4 | 101 | 410 | 489 | L | 12.8 | 1.42 |
Site | SOC Content in Eroded Soil | Soil Loss Rate | ERSOC | ||||
---|---|---|---|---|---|---|---|
(g kg−1) | (g m−2 min−1) | (g kg−1/g kg−1) | |||||
Rainfall Period | Rainfall Period | Rainfall Period | |||||
1st | 2nd | 1st | 2nd | 1st | 2nd | 2nd (ERSOC < 3.14) | |
Jedouchov | 19.3 | 14.4 | 14.5 | 23.6 | 1.47 | 1.10 | 1.10 |
Jevíčko 1 | 11.4 | 10.8 | 9.9 | 24.7 | 1.11 | 1.05 | 1.05 |
Jevíčko 2 | 12.9 | 12.3 | 31.9 | 46.5 | 1.00 | 0.95 | 0.95 |
Jevíčko 3 | 20.4 | 36.8 | 22.2 | 13.1 | 1.10 | 1.99 | 1.99 |
Petrovice 1 | 11.9 | 10.3 | 25.8 | 35.2 | 1.14 | 1.01 | 1.01 |
Petrovice 2 | 15.2 | 9.6 | 26.1 | 22.3 | 1.48 | 0.92 | 0.92 |
Petrovice 3 | 14.6 | 9.7 | 19.6 | 24.6 | 1.82 | 1.19 | 1.19 |
Porešín | 10.0 | 8.9 | 37.8 | 33.1 | 0.94 | 0.85 | 0.85 |
Puclice | 25.4 | 22.5 | 12.1 | 11.1 | 1.64 | 1.46 | 1.46 |
Skoupý 1 | 25.8 | 20.4 | 8.1 | 7.3 | 1.91 | 1.49 | 1.49 |
Skoupý 2 | 25.5 | 23.9 | 2.5 | 4.4 | 1.66 | 1.55 | 1.55 |
Skoupý 3 | 11.8 | 9.1 | 22.3 | 19.1 | 1.17 | 0.88 | 0.88 |
Solopysky 1 | 12.3 | 65.5 | 61.6 | 20.6 | 0.88 | 4.62 | 0.63 |
Solopysky 2 | 14.1 | 37.9 | 19.0 | 8.3 | 1.33 | 3.54 | 1.69 |
Valečov | 13.4 | 7.9 | 24.3 | 20.1 | 1.37 | 0.82 | 0.82 |
Věž 1 | 8.6 | 7.6 | 17.2 | 19.6 | 0.91 | 0.78 | 0.78 |
Věž 2 | 17.0 | 13.9 | 15.0 | 16.7 | 1.44 | 1.17 | 1.17 |
Věž 3 | 13.3 | 84.9 | 43.8 | 7.4 | 1.25 | 8.11 | (n.a.) 1 |
Věž 4 | 12.8 | 52.6 | 40.7 | 7.4 | 0.99 | 4.22 | 2.46 |
median | 13.7 | 13.6 | 21.1 | 14.5 | 1.16 | 1.28 | 1.09 |
mean | 15.5 | 27.2 | 28.8 | 21.5 | 1.25 | 2.11 | 1.15 |
std. error | 0.6 | 3.1 | 2.6 | 2.2 | 0.05 | 0.23 | 0.06 |
min | 4.6 | 2.4 | 1.0 | 2.7 | 0.58 | 0.30 | 0.30 |
max | 29.0 | 131.4 | 111.7 | 118.8 | 2.35 | 9.48 | 2.80 |
n | 82 | 82 | 82 | 82 | 82 | 82 | 65 |
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Hofbauer, M.; Kincl, D.; Vopravil, J.; Kabelka, D.; Vráblík, P. Preferential Erosion of Soil Organic Carbon and Fine-Grained Soil Particles—An Analysis of 82 Rainfall Simulations. Agronomy 2023, 13, 217. https://doi.org/10.3390/agronomy13010217
Hofbauer M, Kincl D, Vopravil J, Kabelka D, Vráblík P. Preferential Erosion of Soil Organic Carbon and Fine-Grained Soil Particles—An Analysis of 82 Rainfall Simulations. Agronomy. 2023; 13(1):217. https://doi.org/10.3390/agronomy13010217
Chicago/Turabian StyleHofbauer, Michael, David Kincl, Jan Vopravil, David Kabelka, and Petr Vráblík. 2023. "Preferential Erosion of Soil Organic Carbon and Fine-Grained Soil Particles—An Analysis of 82 Rainfall Simulations" Agronomy 13, no. 1: 217. https://doi.org/10.3390/agronomy13010217