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Cited by 68Soil Carbon and Nitrogen DynamicsSoil erosion and sediment transportSoil Management and Crop Yield

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Carbon saturation and assessment of soil organic carbon fractions in Mediterranean rainfed olive orchards under plant cover management

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Vicente-Vicente, J.L., Gómez-Muñoz, B., Hinojosa-Centeno, M.B., Smith, P., Garcia-Ruiz, R.·2017·Agriculture, Ecosystems & Environment
DOI 10.1016/j.agee.2017.05.020
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Abstract

Olive groves are undergoing a marked change in the way that inter-row land is managed. The current regulation and recommendation encourages the implementation of plant cover, mainly to improve soil fertility and reduce erosion. However, there is no quantitative information on the dynamics and pools of soil organic carbon (SOC) fractions of different protection levels of the plant-residue-derived organic carbon (OC). This study was conducted to provide a range of annual OC inputs in commercial olive oil groves under natural plant cover, to assess the influence of the annual application of aboveground plant cover residues on unprotected and physically, chemically and biochemically protected SOC. In addition, we tested the carbon saturation hypothesis under plant cover. Ten olive oil orchards under plant cover management (PC), together with five comparable bare soil olive oil orchards (NPC) were selected and annual aboveground natural plant residues and SOC pools were sampled and quantified. Annual aboveground plant cover biomass and OC production in PC olive orchards averaged 1.48tdry-weight (DW)ha−1 and 0.56tCDWha−1, respectively with a great variability among sites (coefficient of variation of about 100%). SOC concentration in PC orchards was, on average, 2.8 (0–5cm soil) and 2.0 (5–15cm) times higher than in bare soils of NPC, and the pool of protected SOC in the top 15cm was 2.1 times higher in the PC (17.9mgCg−1±5.7) (±standard deviation) compared to NPC (8.5mgCg−1±2.9) olive orchards. Linear or saturation type relationships between each SOC fraction and total SOC content for the range of SOC of the commercial olive oil orchards were statistically indistinguishable, and thus linear models to predict SOC accumulation due to plant cover in olive orchards are suitable, at least for the studied range of SOC. Overall, at regional scale where olive oil groves represent a very high proportion of the agricultural land, the use of plant cover appears to be a promising practice that promotes protection of the SOC, thus improving SOC sequestration.

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  • SOC physical protection is affected by tillage because of disruption of macroaggregates, precursors of soil microaggregates.

    “SOC physical protection is also affected by tillage (Vicente-Vicente et al., 2017), because of the disruption of the macroaggregates, precursors of soil microaggregates (Six, Bossuyt, Degryze, & Denef, 2004).”

    From Changes in soil organic carbon under perennial crops (2020) · cites this paper as Vicente-Vicente et al., 2017

    Section 4.2 reports that physically protected SOC was higher in orchards with plant cover, supporting the broader point that management affects physical protection. But the comparison was between plant-covered and bare-soil orchards; the paper does not isolate tillage as the cause. The macroaggregate-disruption explanation is cited separately to Six et al. (2004), not to this source. (LLM, conf=0.82)

    Experimental — accuracy not yet measured

  • Soils with higher bulk density and lower SOC content are likely to have higher saturation deficit and thus may have higher potential to increase SOC stocks.

    “Soils with higher BD and lower SOC content are likely to have higher saturation deficit (Six, Conant, Paul, & Paustian, 2002)-the difference between maximum and minimum SOC that could be achieved-and thus may have higher potential to increase the SOC stocks (Vicente-Vicente, Gómez-Muñoz, Hinojosa-Centeno, Smith, & Garcia-Ruiz, 2017).”

    From Changes in soil organic carbon under perennial crops (2020) · cites this paper as Vicente-Vicente, Gómez-Muñoz, Hinojosa-Centeno, Smith, & Garcia-Ruiz, 2017

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Cited by

Sorted by citations

  • Changes in soil organic carbon under perennial crops

    Ledo, A., Smith, P., Zerihun, A., Whitaker, J., Vicente‐Vicente, J. L., Qin, Z., McNamara, N. P., Zinn, Y. L., Llorente, M., Liebig, M., et al. (2020) · Global Change Biology · doi:10.1111/gcb.15120 · Cited by 280

    “SOC physical protection is also affected by tillage (Vicente-Vicente et al., 2017), because of the disruption of the macroaggregates, precursors of soil microaggregates (Six, Bossuyt, Degryze, & Denef, 2004).”
    BackgroundSelf-citation

Metadata

Authors
Vicente-Vicente, J. L., Gómez-Muñoz, B., Hinojosa-Centeno, M. B., Smith, P., & Garcia-Ruiz, R.
Affiliations
University of Aberdeen (GB)
ORCID
Smith, P.
Venue
Agriculture, Ecosystems & Environment
Publisher
Elsevier BV
Published
2017-07
Volume
245
Pages
135-146
ISSN
0167-8809 (ISSN-L)
DOI
10.1016/j.agee.2017.05.020
OpenAlex
W2617823450
Cited by
68
References
4
Citations by year
2026: 7 · 2025: 8 · 2024: 13 · 2023: 5 · 2022: 12 · 2021: 7 · 2020: 8 · 2019: 2 · 2018: 6
FWCI
4.58
Type
journal article
Language
en
Open access
Licence
Locations
  • Agriculture Ecosystems & Environment (publishedVersion)
  • Aberdeen University Research Archive (Aberdeen University) (submittedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
Ministerio de Educación, Cultura y Deporte of Spain
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Management and Crop Yield
Keywords
soil organic carbon, carbon saturation, olive groves, plant residue decomposition, carbon sequestration, soil organic carbon fractions, soil erosion control, soil fertility, olive oil production, soil depth distribution of carbon

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