Alternatives to Slash-and-Burn 361Table 15.3
ASB matrix comparing the environmental, agronomic, socioeconomic and policy aspects of the alternative land-use systems
Meta–Land- use systemsGlobal environmentalconcernsAgronomic sustainabilitySmallholders’ socioeconomicconcernsPolicy and institutional issuesCarbon sequestration (above-ground time-averaged; Mt/ha)Biodiversity (above-ground plant species per plot)Plot-level production sustainability (overall rating)Potential profitability (returns to land, US$/ha)Employment (average labour input; d/ha/yr)Production incentives at private prices (returns to labour; US$/d)ForestsComplex agroforestsSimple agroforests;intensive tree crops
Crop–fallow rotationsContinuous annual cropsGrasslands, pasturesSource: Modified from ASB (1996)