Shirsath, P.B. and Aggarwal, P.K. and Thornton, P.K. and Dunnett, A.
(2017)
Prioritizing climate-smart agricultural land use options at a regional scale.
Agricultural Systems, 151.
pp. 174-183.
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Abstract
The promotion of climate-smart agriculture in different parts of the world requires a clear understanding of its
relative suitability, costs and benefits, and the environmental implications of various technological interventions
in a local context under current and future climates. Such data are generally difficult to obtain from the literature,
field surveys and focused group discussions, or from biophysical experiments. This article describes a spreadsheet-
basedmethodology that generates this information based on a region specific production function and ‘target
yield’ approach in current and future climate scenarios. Target yields are identified for homogeneous
agroecological spatial units using published crop yield datasets, crop models, expert judgement, biophysical
land characterisations, assessment of yield gaps and future development strategies. Validated production/transfer
functions are used to establish relationships between inputs (water, seed, fertilizer,machinery, energy, labour,
costs) and outputs (crop yields, residues, water and fertiliser use efficiencies, greenhouse gas emissions, financial
returns). The process is repeated for all spatial units of the region, identified through detailed mapping of critical
biophysical factors, and for all suitable current and potential agronomic production technologies and practices.
The application of this approach is illustrated for prioritizing agronomic interventions that can enhance productivity
and incomes, help farmers adapt to current risk, and decrease greenhouse gas emissions in current and future
climates for the flood- and drought-prone state of Bihar in north-eastern India. In general, climate smartness
increases with advanced technologies. Yield is the least limitingwhile emission is the most limiting factor across
the entire crop-technology portfolio for climate smartness. Finally, we present a robust climate smart land use
plan at district level in Bihar under current and future climate scenarios.
| Item Type: |
Article
|
| Uncontrolled Keywords: |
Adaptation, Climate change,
Database development,
Land-use planning,
Mitigation,
Prioritization |
| Author Affiliation: |
CGIAR Research Programon Climate Change, Agriculture and Food Security (CCAFS), Borlaug Institute of South Asia (BISA), International Maize and Wheat Improvement Centre (CIMMYT), New
Delhi 110012, India |
| Subjects: |
Atmosperic Science > Climatology |
| Divisions: |
General |
| Depositing User: |
Mr T L Gautham
|
| Date Deposited: |
07 Nov 2017 03:18 |
| Last Modified: |
07 Nov 2017 03:18 |
| URI: |
http://eprints.icrisat.ac.in/id/eprint/15119 |
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