El índice SPI y la ecología de la sequía.

The article explores the significance of precipitation and drought in ecosystems, particularly focusing on the various types and impacts of drought on agricultural, forestry and socio-economic systems. It delves into the definitions and classifications of drought, highlighting its effects on water availability, agriculture, hydrology and society. Additionally, it discusses the assessment methods for drought, including standardized drought indices like the Standardized Precipitation Index (SPI).