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Article

A Comparative Analysis of Soil Loss Tolerance and Productivity of the Olive Groves in the Protected Designation of Origin (PDO) Areas Norte Alentejano (Portugal) and Estepa (Andalusia, Spain)

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Teaching Unit of Ecology (UDECO), Department of Biodiversity, Ecology and Evolution (BEE), Faculty of Biological Sciences, University Complutense of Madrid, 28040 Madrid, Spain
2
MED-Mediterranean Institute for Agriculture, Environment and Development, Universidade de Évora, Núcleo da Mitra Gab. 206, Edificio dos Regentes Agrícolas, Apartado 94, 7006-554 Évora, Portugal
3
Department of Biology and Geology, University of Almería, 04120 Almería, Spain
*
Authors to whom correspondence should be addressed.
Academic Editor: Jacynthe Dessureault-Rompré
Agronomy 2021, 11(4), 665; https://doi.org/10.3390/agronomy11040665
Received: 28 February 2021 / Revised: 23 March 2021 / Accepted: 27 March 2021 / Published: 31 March 2021
Olive groves are Mediterranean systems that occupy more than 2.5 M ha in Spain and 0.352 M ha in Portugal. Assuming the differences between both countries in terms of olive grove regulation and considering their multifunctionality, it is useful to implement agronomic indices to estimate their sustainability. The Soil Loss Tolerance Index (SLTI) and the Soil Productivity Index (SPI) are two such indices. We calculated both indices in the Protected Designation of Origin (PDO) Norte Alentejano (Portugal). The SLTI index was adapted considering specific variables of the analysed olive groves (i.e., SLTIog). The values obtained were compared with those previously estimated for PDO Estepa (Spain). The negative impacts of erosion and the underlying agricultural practices on the sustainability of olive groves became evident, resulting in decreased soil productivity at the regional level. The SLTIog index showed higher values for crops, being a more realistic tool to analyse sustainability. A higher soil loss tolerance was detected for integrated groves in the PDO Norte Alentejano than for PDO Estepa due to the shorter age of olive cultivation in Portugal, with incipient soil impacts. These indices provide information on the degree of soil erosion, allowing farmers and decision-makers to apply practices to maximise the sustainability of olive groves. View Full-Text
Keywords: conservation agriculture; edaphology; soil erosion; farm management practices; olive groves; sustainability; soil productivity conservation agriculture; edaphology; soil erosion; farm management practices; olive groves; sustainability; soil productivity
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MDPI and ACS Style

Rodríguez Sousa, A.A.; Muñoz-Rojas, J.; Pinto-Correia, T.; Aguilera, P.A.; Barandica, J.M.; Rescia, A.J. A Comparative Analysis of Soil Loss Tolerance and Productivity of the Olive Groves in the Protected Designation of Origin (PDO) Areas Norte Alentejano (Portugal) and Estepa (Andalusia, Spain). Agronomy 2021, 11, 665. https://doi.org/10.3390/agronomy11040665

AMA Style

Rodríguez Sousa AA, Muñoz-Rojas J, Pinto-Correia T, Aguilera PA, Barandica JM, Rescia AJ. A Comparative Analysis of Soil Loss Tolerance and Productivity of the Olive Groves in the Protected Designation of Origin (PDO) Areas Norte Alentejano (Portugal) and Estepa (Andalusia, Spain). Agronomy. 2021; 11(4):665. https://doi.org/10.3390/agronomy11040665

Chicago/Turabian Style

Rodríguez Sousa, Antonio A., José Muñoz-Rojas, Teresa Pinto-Correia, Pedro A. Aguilera, Jesús M. Barandica, and Alejandro J. Rescia 2021. "A Comparative Analysis of Soil Loss Tolerance and Productivity of the Olive Groves in the Protected Designation of Origin (PDO) Areas Norte Alentejano (Portugal) and Estepa (Andalusia, Spain)" Agronomy 11, no. 4: 665. https://doi.org/10.3390/agronomy11040665

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