A project to determine the feasibility of developing a stabilized farming system [to replace shifting agriculture] in the unirrigable uplands of the dry zone [of Sri Lanka]

altiplanos aridoculture asentamiento campesino asia asie clima climat climate climatic zones condiciones ambientales condition de milieu cropping systems cultivo migratorio desarrollo rural dry farming environment environmental conditions environnement expenditure farming systems gastos income ingresos medio ambiente mixed farming physiographic features revenu rural development rural settlement shifting cultivation sistemas de cultivo site factors sri lanka zone climatique zone semi-aride