Indonesian Agroforestry Study Proves Multilayered Shade Systems Shield Cacao Farms From Extreme Climate Stress

Hasanuddin University study proves mixed-shade systems using coconut and banana trees improve soil and cacao growth under climate stress.

By: AXL Media

Published: Apr 29, 2026, 8:05 AM EDT

Source: Information for this report was sourced from EurekAlert!

Adapting the Chocolate Supply Chain to Climate Change

As one of the world’s most significant producers of cacao, Indonesia is currently facing severe agricultural disruptions driven by increasing temperatures and erratic precipitation patterns. Cacao beans, the fundamental ingredient for global chocolate production, require precise environmental conditions to reach high quality. A research team led by Professor Risma Neswati has identified that traditional monoculture farming is increasingly vulnerable to these shifts, prompting a search for nature-based solutions that can stabilize production for the millions of smallholder farmers who sustain the industry.

The Efficacy of Multistrata Shade Structures

The study, conducted in South Sulawesi, investigated the impact of "multistrata" shade systems—a method of planting diverse tree species alongside cacao crops to provide a protective canopy. By evaluating combinations of coconut, banana, and Gliricidia sepium, the researchers discovered that a mixed-layer approach is vastly superior to using a single shade species or no shade at all. These layers act as a thermal buffer, shielding sensitive cacao plants from direct sunlight and significantly reducing the ground-level heat that can otherwise scorch developing crops.

Nutrient Enrichment and Soil Health Dynamics

A critical finding of the field study, published in Agroforestry Systems, was the measurable improvement in soil quality under shaded environments. The integration of Gliricidia sepium, a nitrogen-fixing tree, directly enriched the soil with essential nutrients, while the combined canopy of coconut and banana trees increased the soil's ability to retain moisture. This symbiotic relationship creates a fertile microenvironment where nutrient leaching is minimized, ensuring that the cacao trees have access to the resources needed for healthy development even during prolonged dry spells.