Satellite imagery and climate variables suggest variations in the phenology of olive groves in Southern Spain

A. Fernandez-Carrillo; F. W. Rivas-Gonzalez; B. Revilla-Romero

doi:10.1117/12.2599901

12 September 2021 Satellite imagery and climate variables suggest variations in the phenology of olive groves in Southern Spain

A. Fernandez-Carrillo, F. W. Rivas-Gonzalez, B. Revilla-Romero

Author Affiliations +

Proceedings Volume 11856, Remote Sensing for Agriculture, Ecosystems, and Hydrology XXIII; 118560M (2021) https://doi.org/10.1117/12.2599901
Event: SPIE Remote Sensing, 2021, Online Only

Abstract

Olive groves have high socioeconomic impacts in Spain. Global warming is leading to changes in agrarian systems, affecting phenology and productivity. Remote Sensing data is useful to study the current trends in olive groves. The MEDGOLD project, funded by the European Union's H2020 programme (No. 776467), aims to develop climate services for the Mediterranean agri-food sector (grape, olives and durum wheat). In this work, images from the MODIS sensor have been used to study the status of olive groves in 2000-2020 in Southern Spain. Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI) and Normalized Multi-band Drought Index (NMDI) were computed and correlated with precipitation and temperature using datasets provided by the Environmental Information Network of Andalusia (REDIAM) and scenarios based on the MED-GOLD outcomes. Additionally, some annual indicators were derived from NDVI to study trends: maximum (MAX), minimum (MIN), mean (MEAN), relative range (RREL), date of the maximum (DMAX) and date of the minimum (DMIN). Reported good and bad production years were reflected on vegetation indices. Trends were observed in annual indicators. The average photosynthetic activity increased, especially in MIN (Δ_year = 0.0025; r2 = 0.68). The trend of RREL (Δ_year = -0.012; r2 = 0.52) indicated that vegetation is moving to a more constant seasonal behaviour. The beginning and end of the season tend to occur earlier each year, as showed by DMAX (Δ_year = -2.7 days) and DMIN (Δ_year = -1.7 years). Management practices may require adaptations to the new seasonal behaviour of herbaceous vegetation, which could affect soil properties.

Conference Presentation

Citation Download Citation

A. Fernandez-Carrillo, F. W. Rivas-Gonzalez, and B. Revilla-Romero "Satellite imagery and climate variables suggest variations in the phenology of olive groves in Southern Spain", Proc. SPIE 11856, Remote Sensing for Agriculture, Ecosystems, and Hydrology XXIII, 118560M (12 September 2021); https://doi.org/10.1117/12.2599901

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available