Long-term organic farming on a citrus plantation results in soil organic matter recovery

Agata Novara (Corresponding Author), Manuel Pulido, Jesus Rodrigo-Comino, Simone Di Prima, Pete Smith, Luciano Gristina, Antonio Giminez-Morera, Enric Terol, David Salesa, Saskia Keesstra

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Abstract

It has been shown that soil management under organic farming can enhance soil organic carbon, thereby mitigating atmospheric greenhouse gas increases, but until now quantitative evaluations based on long term experiments are scarce, especially under Mediterranean conditions. Changes in soil organic carbon (SOC) content were examined in response to organic management with cover crops in a Mediterranean citrus plantation using 21 years of survey data. Soil organic carbon increase was more apparent 5 years after a land management change suggesting that, for citrus plantations on Mediterranean conditions, studies should be longer than five years in duration. Soil organic carbon sequestration rate did not significantly change during the 21 years of observation, with values ranging from -1.10 Mg C ha−1 y−1 to 1.89 Mg C ha−1 y−1. After 21 years, 61 Mg CO2 ha-1 were sequestered in long-lived soil C pools. These findings demonstrate that organic management is an effective strategy to restore or increase SOC content in Mediterranean citrus systems.
Original languageEnglish
Pages (from-to)271-286
Number of pages16
JournalCuadernos de Investigación Geográfica
Volume45
Issue number1
DOIs
Publication statusPublished - 2019

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organic farming
soil organic matter
plantation
organic carbon
management
study conditions
change management
soil
atmospheric gas
cover crop
experiment
soil management
evaluation
land management
carbon sequestration
Values
greenhouse gas

Keywords

  • organic carbon
  • citrus
  • long-term experiment
  • carbon sequestration rate

Cite this

Novara, A., Pulido, M., Rodrigo-Comino, J., Di Prima, S., Smith, P., Gristina, L., ... Keesstra, S. (2019). Long-term organic farming on a citrus plantation results in soil organic matter recovery. Cuadernos de Investigación Geográfica, 45(1), 271-286. https://doi.org/10.18172/cig.3794

Long-term organic farming on a citrus plantation results in soil organic matter recovery. / Novara, Agata (Corresponding Author); Pulido, Manuel; Rodrigo-Comino, Jesus; Di Prima, Simone; Smith, Pete; Gristina, Luciano; Giminez-Morera, Antonio; Terol, Enric; Salesa, David; Keesstra, Saskia.

In: Cuadernos de Investigación Geográfica, Vol. 45, No. 1, 2019, p. 271-286.

Research output: Contribution to journalArticle

Novara, A, Pulido, M, Rodrigo-Comino, J, Di Prima, S, Smith, P, Gristina, L, Giminez-Morera, A, Terol, E, Salesa, D & Keesstra, S 2019, 'Long-term organic farming on a citrus plantation results in soil organic matter recovery' Cuadernos de Investigación Geográfica, vol. 45, no. 1, pp. 271-286. https://doi.org/10.18172/cig.3794
Novara, Agata ; Pulido, Manuel ; Rodrigo-Comino, Jesus ; Di Prima, Simone ; Smith, Pete ; Gristina, Luciano ; Giminez-Morera, Antonio ; Terol, Enric ; Salesa, David ; Keesstra, Saskia. / Long-term organic farming on a citrus plantation results in soil organic matter recovery. In: Cuadernos de Investigación Geográfica. 2019 ; Vol. 45, No. 1. pp. 271-286.
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