# Evidence of solar activity and El Niño signals in tree rings of Araucaria araucana and A. angustifolia in South America

> Research article (Global and Planetary Change, 2016) · cited 24× · AI/ML

**Wikidata**: [openalex:W2518318732](https://www.wikidata.org/wiki/openalex:W2518318732)  
**Source**: https://4ort.xyz/entity/evidence-of-solar-activity-and-el-nino-signals-in-tree-rings-of-araucaria-araucana-and-a-angustifolia-in-south-america