11. Dimasa were compelled to adopt shifting cultivation , commonly known as jhum, in hilly areas. 12. Later the Forest Department forbade shifting cultivation and restricted cultivation to the allotted lands. 13. The surrounding forest is extensively exploited due to shifting cultivation . 14. Like many other tribal groups in Northeast India, they practice jhum, or shifting cultivation . 15. Classical writers described peoples who practiced shifting cultivation , which characterized the Migration Period in Europe. 16. Slash and burn shifting cultivation therefore ceased much earlier in the south than the north. 17. They subsist mainly on shifting cultivation , hunting and fishing. 18. Most Anwain people are farmers who practice shifting cultivation . 19. In Italy, shifting cultivation was a thing of the past by the birth of Christ. 20. In Italy, shifting cultivation was a thing of the past at the birth of Christ.
