Indigenous farmers in Bangladesh's Chittagong Hill Tracts are adopting the machan method—growing vegetables on bamboo trellises—to replace traditional jhum cultivation.

Jhum (Shifting Cultivation) Traditional method replaced
Machan (Elevated Bamboo Trellises) New farming method
Chakma, Marma, And Mro Communities Indigenous groups adapting
Land Scarcity And Declining Yields Driver of change