Spatial dynamics and consistency of agroclimatic trends in Chile during 1985-2015 to the Köppen- Geiger climate classification
Cargando...
Archivos
Título de la revista
ISSN de la revista
Título del volumen
Editor
Instituto de Investigaciones Agropecuarias
Serie Documental
N° Publicación
v. 81(4) p. 618-629
Resumen o contenido
The Köppen-Geiger classification is one of the most common climate classification systems in the world. It allows
classifying ecosystem distribution based on temperature and precipitation, two critical factors in climate, and vegetation
cover’s sensitivity. We analyzed the dynamics and spatial consistency of agroclimatic variables in each type of Köppen-
Geiger climate present in Chile, visualizing the variables’ behavior throughout the territory. Thus, we computed the
trends of different climate and agroclimatic variables in each meteorological station, mapping their slope and statistical
significance, and comparing their sense among all those that belong to the same climate zone. Our global trends analysis
showed a thermal amplitude decrease in northern and central areas in about 12.03% and 20.3%, respectively, and an
increase in south and southern areas in about 13.7% and 26.3%. A generalized increase in frost events (2.90%-16.02%)
took place mainly in the country’s northern part. Results showed higher concordance percentages in stations belonging
to the Köppen-Geiger type B (dry climate) and C (temperate climate). Thus, an increase in the maximum temperature
occurred from north-central to south zones, a decrease in minimum temperature from north to central zone, and an increase
in highlands (700-4000 m a.s.l.), central, south, and southern zone of the country. Also, a precipitation decrease and
thermal amplitude increased roughly from the Coquimbo Region to the country’s central and southern zone. Variations in
the agroclimatic indices’ behavior can affect yield and production of crops; thus, agroclimatic information presented here
can support the zoning and selection of the cropping system.
Fecha
2021-10
Enlace permanente
https://hdl.handle.net/20.500.14001/68684
Cita Bibliográfica
Orrego V., Raúl, Abarca del R., Rodrigo, Lara U., Claudia (2021-10). Spatial dynamics and consistency of agroclimatic trends in Chile during 1985-2015 to the Köppen- Geiger climate classification [en línea]. Chillán, Chile: Instituto de Investigaciones Agropecuarias. Chilean Journal of Agricultural Research. v. 81(4) p. 618-629. Disponible en: https://hdl.handle.net/20.500.14001/68684 (Consultado: 21 de noviembre de 2024).