Good Evening,
In class we discussed the evolution of farming for subsistence to an era of prosperity, which works well for older settlers, however, leaves many without rich soil and land to survive. I think redrawing landlines once again should be reserved, with the understanding that it will further exacerbate community tensions. I do not come from a position of geography expertise, or farming stratagem of the region, as I'm sure the inhabitants are, however, I will share thoughts under certain conditions that may provide relief to overpopulation.
Assuming the population will follow opportunity, what could be available to those with less in another location, that is worth relocating a family.
If the government institution has contributed to these people's poverty, a solution could be asked by them. If the land is limited, then allow these people the ability to leave by instituting a skill program with allowance for a predetermined time frame. Implement a fair stipend, and regain some financial reward by requiring time owed to government service in the respective trade. What is necessary is a department that monitors and balances the available training based on government need and skill demand throughout the country or district. Once completed, arrange counselors to pair workers to where work is.
This could pull people from Karatu, and place them into a plethora of communities throughout the nation of Tanzania. It may or may not regain the full government dollar, but it is an investment of the people, hope and confidence in future generations, their quality of life, and the country's GDP.
I think relocation under these conditions above are possible, however, I cannot say with even moderate certainty this is feasible with respect to economic, and cultural restraints.
Anthony M. De Gregorio