Smallholder agriculture in Northeast Brazil: assessing heterogeneous human-environmental dynamics
| Autor: | Diana Sietz, B. Untied, Hans Joachim Schellnhuber, Gerhard Petschel-Held, O. Walkenhorst, G. Mertins, M.K.B. Lüdeke |
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| Rok vydání: | 2006 |
| Předmět: |
Global and Planetary Change
Natural resource economics business.industry land degradation Variance (land use) Climate change WASS soil conservation Investment (macroeconomics) Spatial heterogeneity Geography Rural Development Sociology Rural poverty Agriculture Land degradation Leerstoelgroep Rurale ontwikkelingssociologie business Water resource management Soil conservation |
| Zdroj: | Regional Environmental Change, 6(3), 132-146 Regional Environmental Change 6 (2006) 3 |
| ISSN: | 1436-378X 1436-3798 |
| Popis: | A qualitative model of smallholder agriculture with a few core variables and two allocation rules for labour and investment in agricultural resources was developed to cover spatial heterogeneity in Northeast Brazil. This region is characterised by large natural and socio-economic variance, recurrent droughts and widespread rural poverty. The resulting system dynamics essentially consists of a cycle of four qualitative states, each depicting a typical pattern of trends in smallholder agriculture. Municipal statistical data were used to identify the spatial distribution of these patterns for the 1990s and the internal transition likelihood between subsequent states. Additionally the influence of external perturbations like droughts and producer price shocks on the smallholder system was investigated. |
| Databáze: | OpenAIRE |
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