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Crop residue tradeoffs in crop-livestock systems: Ideas for scenarios to be analyzed
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Presentation by Mark T. van Wijk for the SLP Crop Residues Project Review and Planning Meeting, Addis Ababa, Ethiopia, 9-10 December 2010.
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Crop residue tradeoffs in crop-livestock systems: Ideas for scenarios to be analyzed
- Crop residues Manure Feed Food Fertilisers Food + services Feed Market Food Livestock Grasslands Cropland Household
- NUANCES-FARMSIM FIELD: dynamic, summary model of CROP and SOIL processes LIVSIM: individual based dynamic, summary model of livestock HEAPSIM: dynamic summary model of manure management and storage LABOURSIM and CASHSIM: summary models of socio-economic components and their interactions with production comp.
- Degree of crop-livestock integration Stocks, flows and assets System state II + + Management intensity + + System state III System state I Household “Well-being” Stress Alleviation Tittonell, Van Wijk et al, 2009, Agricultural Systems
Editor's Notes
- Figure 11: Schematic conceptualisation of pathways towards intensification and their potential impact on household well-being. In this case, the impact of intensifying crop-livestock interactions (x-axis) on different aspects of household well-being (y-axis) such as food security or cash income follows a discontinuous trajectory in which input-intensification (quantitative) must be followed by qualitative changes in the productive structure of the farm to induce ‘jumps’ of the system towards higher states. Resource use efficiencies, the degree of complementarities between production activities, resource endowment and management intensity increase from system states I to III. Stressing factors (e.g. population density) and alleviation interventions may modify the slope of the trajectory towards higher levels of well-being for a certain degree of intensification.
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