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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URI: http://hdl.handle.net/10835/10485
ISSN: 2073-4395
DOI: https://doi.org/10.3390/agronomy11040665
ISSN: 2073-4395
DOI: https://doi.org/10.3390/agronomy11040665
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Rodríguez Sousa, Antonio Alberto; Muñoz Rojas, José; Pinto Correia, Teresa; Aguilera Aguilera, Pedro; Barandica, Jesús M.; [et al.]Fecha
2021-03-31Resumen
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 h...
Palabra/s clave
conservation agriculture
edaphology
soil erosion
farm management practices
olive groves
sustainability
soil productivity