effectiveness of solutions

• great green wall - pros - passes through livestock farms benefiting those who need it most and acacia species = economic value from gum arabic

  cons- hard to impliment as its cross country = lots of governtments ( lack of control in eastern chad) , expensive requires 2 billion from world bank
• gezira scheme - pros - 2 harvests a year = farmers income increased , wheat grown for food + cotton for export , crops grow with little rain

  cons- only helps one area of country , expensive and can flood farmlad
• hafir project - pros - time fetching water reduced from 6 hours to 15 minutes , locals learn new skills + ownership - committees = locals agreed to laws about water use and access
• stone lines - pros - doesnt require many recources or much education = low cost , since early 1990's 1/3 of a million degraded land restored

  cons - labour intensive
• fallow band system - pros - no additional expense or labour needed , can catch 74% of wind blown soil , millet yields increased by 75% in 4 years

  cons - desire to grow cash crops = farmers reluctant to leave fallow land
• terraces - pros - trap water and stop washing top soil away

  cons - labour intensive - needs regular maintanence , expensive to construct and maintain = farmers cant afford
• greeing mopti - pros - 84 tree nurseries planted across region , 1/2 project completed