Factors Governing Total and Permanganate Oxidizable C Pools in Agricultural Soils from Southern Italy
The present investigation was aimed to quantify the three principal components of the soil carbon (C) stock, namely inorganic, organic and permanganate oxidizable, in 0–5 cm and 5–30 cm soil layers, of the main Mediterranean agricultural land coverages: olive grove, olive forest, citrus grove, viney...
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MDPI AG
2020-04-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/10/4/99 |
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| author | Giuseppe Badagliacca Maurizio Romeo Emilio Lo Presti Antonio Gelsomino Michele Monti |
| author_facet | Giuseppe Badagliacca Maurizio Romeo Emilio Lo Presti Antonio Gelsomino Michele Monti |
| author_sort | Giuseppe Badagliacca |
| collection | DOAJ |
| description | The present investigation was aimed to quantify the three principal components of the soil carbon (C) stock, namely inorganic, organic and permanganate oxidizable, in 0–5 cm and 5–30 cm soil layers, of the main Mediterranean agricultural land coverages: olive grove, olive forest, citrus grove, vineyard, arable irrigated, arable rainfed and natural soil covered by Mediterranean scrub and garrigue. We assessed the contribution of soil properties and climatic variables on soil TOC and POxC by Pearson’s correlations, multiple linear regressions, principal component analyses and variance partitioning. NAT and both olive cropping systems showed the highest TOC concentration while the other land covers showed values ranging between 8.0 and 26.6 g kg<sup>−1</sup>. Soil POxC represented between 0.5% and 2.2% of the total soil C. A large number of interrelated factors govern soil C accumulation in Mediterranean agroecosystems. Rainfall and temperature had a selective effect on soil C distribution between the sampling areas, while among soil properties, texture exerted a prominent effect, resulting in positive effects from clay and negative effects from sand. Soil POxC concentration showed a similar trend to soil TOC in all land uses although on each of them represent a different TOC portion. |
| first_indexed | 2024-03-10T20:45:01Z |
| format | Article |
| id | doaj.art-905f3f77846e466fa53b8bdcecfe13f0 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T20:45:01Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-905f3f77846e466fa53b8bdcecfe13f02023-11-19T20:22:19ZengMDPI AGAgriculture2077-04722020-04-011049910.3390/agriculture10040099Factors Governing Total and Permanganate Oxidizable C Pools in Agricultural Soils from Southern ItalyGiuseppe Badagliacca0Maurizio Romeo1Emilio Lo Presti2Antonio Gelsomino3Michele Monti4Dipartimento di Agraria, Università degli Studi Mediterranea di Reggio Calabria, 89124 Reggio Calabria, ItalyDipartimento di Agraria, Università degli Studi Mediterranea di Reggio Calabria, 89124 Reggio Calabria, ItalyDipartimento di Agraria, Università degli Studi Mediterranea di Reggio Calabria, 89124 Reggio Calabria, ItalyDipartimento di Agraria, Università degli Studi Mediterranea di Reggio Calabria, 89124 Reggio Calabria, ItalyDipartimento di Agraria, Università degli Studi Mediterranea di Reggio Calabria, 89124 Reggio Calabria, ItalyThe present investigation was aimed to quantify the three principal components of the soil carbon (C) stock, namely inorganic, organic and permanganate oxidizable, in 0–5 cm and 5–30 cm soil layers, of the main Mediterranean agricultural land coverages: olive grove, olive forest, citrus grove, vineyard, arable irrigated, arable rainfed and natural soil covered by Mediterranean scrub and garrigue. We assessed the contribution of soil properties and climatic variables on soil TOC and POxC by Pearson’s correlations, multiple linear regressions, principal component analyses and variance partitioning. NAT and both olive cropping systems showed the highest TOC concentration while the other land covers showed values ranging between 8.0 and 26.6 g kg<sup>−1</sup>. Soil POxC represented between 0.5% and 2.2% of the total soil C. A large number of interrelated factors govern soil C accumulation in Mediterranean agroecosystems. Rainfall and temperature had a selective effect on soil C distribution between the sampling areas, while among soil properties, texture exerted a prominent effect, resulting in positive effects from clay and negative effects from sand. Soil POxC concentration showed a similar trend to soil TOC in all land uses although on each of them represent a different TOC portion.https://www.mdpi.com/2077-0472/10/4/99soil carbon stocksoil carbon assessmentlabile organic carbonland useMediterranean agroecosystems |
| spellingShingle | Giuseppe Badagliacca Maurizio Romeo Emilio Lo Presti Antonio Gelsomino Michele Monti Factors Governing Total and Permanganate Oxidizable C Pools in Agricultural Soils from Southern Italy Agriculture soil carbon stock soil carbon assessment labile organic carbon land use Mediterranean agroecosystems |
| title | Factors Governing Total and Permanganate Oxidizable C Pools in Agricultural Soils from Southern Italy |
| title_full | Factors Governing Total and Permanganate Oxidizable C Pools in Agricultural Soils from Southern Italy |
| title_fullStr | Factors Governing Total and Permanganate Oxidizable C Pools in Agricultural Soils from Southern Italy |
| title_full_unstemmed | Factors Governing Total and Permanganate Oxidizable C Pools in Agricultural Soils from Southern Italy |
| title_short | Factors Governing Total and Permanganate Oxidizable C Pools in Agricultural Soils from Southern Italy |
| title_sort | factors governing total and permanganate oxidizable c pools in agricultural soils from southern italy |
| topic | soil carbon stock soil carbon assessment labile organic carbon land use Mediterranean agroecosystems |
| url | https://www.mdpi.com/2077-0472/10/4/99 |
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