Prospects of improved farming systems in a shiftingcultivation area in Zambia
The transition from traditional shiftingcultivation to permanent maize cultivation in Northern Zambia wa studied with emphasis on land, labour and agro-economical aspects.
Agriculture ; Guinea ; Mathematical model ; Model ; Population growth ; Shiftingcultivation ; Simulation
This paper will present a computer model of a certain class of agricultural systems, termed shiftingcultivation systems. The objective of modeling is to demonstrate how such decision rules control overall system behaviour, and to study the response
It's all the mound : fertility management under stationary shiftingcultivation in Papua New Guinea Highlands
Agriculture ; Cultural capacity ; Environmental degradation ; Ethnic community ; Mountain ; Papua New Guinea ; Shiftingcultivation ; Soil
Paper combines anthropological research with soil science to investigate the long-held assumption, based mainly on research in Africa and Latin America, the shiftingcultivation causes environmental degradation. The Wola highlanders of Papua New
Guinea were found to practice a shiftingcultivation that improved soil fertility by incorporating compost from short grassy fallow into soil mounds for growing sweet potatoes. - (SLD)
Human-environmental influences and interactions in shifting agriculture when farmers form expectations rationally
Agricultural productivity ; Fallow land ; Farming;Agriculture ; Food consumption ; Man-environment relations ; Model ; Production function ; Shiftingcultivation ; Tropical zone
This paper contains a study of the response of shifting agriculture to several social and environmental changes in circumstances in which farmers form in a relatively sophisticated manner their expectations of the future value of key economic
Interrill erosion in the sloping lands of northern Laos subjected to shiftingcultivation
Bassin-versant ; Erosion des sols ; Erosion hydrique ; Laos ; Montagne ; Pratique culturale ; Ruissellement ; Sol cultivé ; Zone intertropicale
Agricultural practice ; Cultivated land ; Laos ; Mountain ; Rill wash ; Soil erosion ; Tropical zone ; Water erosion ; Watershed
In this study, the main objective is to evaluate soil interrill erosion in the sloping lands of Northern Laos for different soils and periods of the shiftingcultivation cycle. One metre square micro-plots and laboratory tests were used
The use of cesium-137 measurements of soil erosion and farmers' perception to indicate land degradation amongst shiftingcultivators in northern Thailand
Erosion on steep slopes in Chiang Rai province was measured for the 1963-1991 period. Not all of the erosion was from cultivation. And erosion may not be the most relevant factor in reducing soil fertility. - (DWG)
Environment ; Environmental degradation ; Ethnic community ; Forest ; Land clearing ; Shiftingcultivation ; Thailand ; Vegetation dynamics
A reevaluation of the usual view that shiftingcultivation leads to forest degradation, soil erosion, water shortages, and other undesirable changes. Author examines the swidden farming near three upland villages in northern Thailand. swiddens
maintains that shiftingcultivation has only a negative impact on the environment, disregarding the variety of local practices. The state has striven to extend its control over forests, and the implementation of the state's conservation policy has had many
Declining cotton cultivation in Maricopa County, Arizona : an examination of macro- and micro-scale driving forces
Agriculture ; Arizona ; Coton ; Ecologie politique ; Etats-Unis ; Mutation rurale ; Plante cultivée ; Urbanisation ; Utilisation du sol
Agriculture ; Arizona ; Cotton ; Cultivated plants ; Land use ; Rural change ; United States of America ; Urbanization
This county has undergone changes resulting in shifts within the regional agricultural economy. The dramatic decline in cotton has prompted the question. The research employs a methodology that combines macro-scale analysis with interviews of cotton