Indigenous Farmers in Bangladesh Adopt Raised Trellis Farming to Preserve Land
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Indigenous communities in Bangladesh's Chittagong Hill Tracts are adopting the machan method, a raised trellis system for growing vegetables, to address soil exhaustion from traditional farming. The shift responds to shortened fallow cycles that have degraded land and reduced yields. This adaptation aims to sustain agriculture while preserving the region's ecological balance.
Facts First
- Farmers are transitioning from jhum shifting cultivation to the machan method using bamboo trellises.
- Shorter fallow cycles have exhausted soil and increased erosion, leading to poor rice yields.
- The machan method grows vine crops like gourds and beans 4-5 feet above the ground.
- Land under traditional jhum in Bandarban district decreased from 9,050 hectares in 2014 to 8,270 hectares by 2025.
- The change is driven by a growing number of farmers reducing fallow periods from up to 20 years to just 2-3 years.
What Happened
Indigenous farmers in the Chittagong Hill Tracts (CHT) of southeastern Bangladesh are adopting the machan method, a system of growing vegetables on bamboo trellises above the ground. This transition is a response to challenges facing their traditional jhum method of shifting cultivation. In the jhum system, practiced by communities like the Chakma, Marma, and Mro, small forest patches are cleared, farmed, and then left fallow for many years to restore soil fertility. However, in districts like Bandarban, the fallow cycle has decreased significantly from up to 20 years to just two or three years due to an increase in the number of farmers. This shortened cycle has led to exhausted soil, poor rice yields, and increased soil erosion during heavy rains. Government data shows the area under jhum cultivation in Bandarban has decreased from 9,050 hectares in 2014 to 8,270 hectares by 2025.
Why this Matters to You
This shift represents an important adaptation in how food is produced in a vulnerable region. If successful, it could help stabilize local food supplies and livelihoods for indigenous communities. For you, it highlights a global pattern of agricultural innovation in response to environmental pressure. The method's focus on vine crops... may offer a model for sustainable farming in other hilly regions facing similar soil degradation challenges.
What's Next
The continued adoption of the machan method may help preserve the remaining forest land in the CHT by reducing the need for frequent clearing. Its success could encourage further agricultural innovations tailored to the region's ecology. The long-term impact on soil health and farmer incomes will likely determine whether this becomes a widespread practice, potentially offering a more sustainable path forward for indigenous agriculture in the hills.