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Article

Agricultural Drought Trends on the Iberian Peninsula: An Analysis Using Modeled and Reanalysis Soil Moisture Products

Instituto Hispano Luso de Investigaciones Agrarias, CIALE, Universidad de Salamanca, Villamayor, 37185 Salamanca, Spain
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Academic Editor: Sonia Raquel Gámiz-Fortis
Atmosphere 2021, 12(2), 236; https://doi.org/10.3390/atmos12020236
Received: 20 January 2021 / Revised: 3 February 2021 / Accepted: 4 February 2021 / Published: 9 February 2021
Drought has a great impact on agriculture and food security, and climate change is increasing its frequency and exacerbating its intensity. Given the enormous interest in studying the recent drought evolution, in this work, agricultural drought trends over the past four decades on the Iberian Peninsula (IP) were analyzed. A trend analysis was performed with soil moisture based on the study of the evolution of anomalies and the Soil Water Deficit Index (SWDI). Two soil moisture databases (Lisflood and ERA5-Land) were used and the analysis was performed at daily and weekly temporal scales. Climate characteristics and soil properties were also considered to detect whether a trend spatial pattern could be identified. The results have shown a clear predominance of negative trends. A marked temporal pattern with negative trends was obtained over a 10-month period that coincided with the growing season of most of the crops on the IP, while a positive trend was observed over 2 months. No differences were found based on the climatic zone or soil characteristics. However, negative trends were observed to decrease as the clay content increased. These results can provide useful information for better water management and agriculture of the IP and other Mediterranean areas. View Full-Text
Keywords: agricultural drought; soil moisture; Iberian Peninsula; trend analysis; climate change agricultural drought; soil moisture; Iberian Peninsula; trend analysis; climate change
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MDPI and ACS Style

Almendra-Martín, L.; Martínez-Fernández, J.; González-Zamora, Á.; Benito-Verdugo, P.; Herrero-Jiménez, C.M. Agricultural Drought Trends on the Iberian Peninsula: An Analysis Using Modeled and Reanalysis Soil Moisture Products. Atmosphere 2021, 12, 236. https://doi.org/10.3390/atmos12020236

AMA Style

Almendra-Martín L, Martínez-Fernández J, González-Zamora Á, Benito-Verdugo P, Herrero-Jiménez CM. Agricultural Drought Trends on the Iberian Peninsula: An Analysis Using Modeled and Reanalysis Soil Moisture Products. Atmosphere. 2021; 12(2):236. https://doi.org/10.3390/atmos12020236

Chicago/Turabian Style

Almendra-Martín, Laura, José Martínez-Fernández, Ángel González-Zamora, Pilar Benito-Verdugo, and Carlos Miguel Herrero-Jiménez. 2021. "Agricultural Drought Trends on the Iberian Peninsula: An Analysis Using Modeled and Reanalysis Soil Moisture Products" Atmosphere 12, no. 2: 236. https://doi.org/10.3390/atmos12020236

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