Agroforestry combines perennial trees with crops and livestock on the same land unit. It is a sustainable system that maximizes use of space and resources while reducing risk for farming households.
What is agroforestry?
In essence, agroforestry mimics the multi-layer structure of natural forest. Instead of a monoculture, farmers arrange species of different heights and growth cycles into a multi-layer system that captures light, water and nutrients efficiently, especially suited to sloping midland and hilly terrain prone to erosion.
Multi-layer structure
- Upper layer: perennial timber or industrial trees for shade and windbreak.
- Middle layer: fruit trees for stable seasonal income.
- Lower layer: short-duration crops, soil-improving legumes, medicinal plants.
- Livestock and closed-loop use of by-products.
Economic and ecological benefits
Agroforestry delivers dual benefits. Ecologically, layered canopies and roots curb erosion, retain water, improve soil fertility and store more carbon. Economically, it diversifies income, spreads market and weather risk, and lowers input costs through closed nutrient cycles.
Examples in midland and Central Highlands regions
In the northern midlands and Central Highlands, agroforestry models combine perennial industrial crops with fruit, shade and short-duration crops, generating income while protecting sloping land.
- Choosing crop combinations suited to soil and climate.
- Spatial arrangement that limits competition between layers.
- Circular nutrient and water management.
- Market linkage for each product group.
Agroforestry and carbon credits
As the world focuses on emissions, agroforestry stands out for storing carbon in woody biomass and soil, opening potential participation in carbon-credit markets and an extra income stream beyond traditional produce.
- Transparent, science-based measurement of stored carbon.
- Maintaining stable, long-term models to keep carbon durable.
- Combining carbon benefits with production and soil protection.
- Organizing farmers into groups to reach scale for credit schemes.
Despite measurement and mechanism challenges, this is a promising way to link farming with climate adaptation and sustainable development.
Agroforestry is not merely a way of planting trees but a philosophy of farming with nature, where every layer contributes to the whole system's sustainability.
ASTRI's direction
With its mandate for research, application and transfer, ASTRI sees agroforestry as a sustainable model with strong potential in hilly and midland areas. Through model demonstrations and technical training, ASTRI aims to help farmers apply agroforestry effectively, raising income, protecting soil resources and adapting to climate change.