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022 _a0308-521X
022 _a1873-2267 (Online)
024 8 _ahttps://doi.org/10.1016/j.agsy.2024.104014
040 _aMX-TxCIM
041 _aeng
100 1 _8001712974
_aMkondiwa, M.
_gSustainable Agrifood Systems
_926831
245 1 0 _aRisk-based evaluations of competing agronomic climate adaptation strategies :
_bThe case of rice planting strategies in the indo-Gangetic Plains
260 _bElsevier Ltd.,
_c2024.
_aUnited Kingdom :
500 _aPeer review
500 _aOpen Access
520 _aCONTEXT: Adjusting crop planting dates and variety durations is emerging as a crucial climate change adaptation strategy for many cereal systems. Such strategies include harmonizing crop planting with the onset of the rainy season or planting at specific recommended calendar dates. Evaluations of these strategies mostly consider yield and yield variability, but focus less on financial risks associated with different planting strategies and importance of risk aversion behaviour of the farmers in their decision to adopt the strategies. OBJECTIVE: Here, we present a novel framework that uses a computational spatial ex-ante approach for risk-based evaluations of agronomic adaptation options. This framework allows development agronomic adaptation recommendations that consider climate risks for risk-averse famrers. METHODS: We use a second order stochastic dominance approach that is paired with computational optimization—Golden section search algorithm. This approach allows a distributional assessment of risk and uncertainty by providing bounds at which even a risk averse would benefit from changing practices. This contrasts with conventional methods that do not consider farmers' risk aversion, e.g. mean-variance or conditional value at risk optimization methods. To demonstrate our approach, we compare the yield risks and economic risks associated with readily available gridded crop simulation outputs for various rice planting strategies across the Indo-Gangetic Plains (IGP)– a major region experiencing food insecurity and climate impacts. RESULTS AND CONCLUSIONS: The findings provide quantitative evidence about the riskiness of previously recommended rice planting date strategies. The risk-based assessment corroborates the recommendation for planting long-duration varieties at the monsoon onset with or without supplemental irrigation (covering about 22% of IGP area) in the Eastern IGP, and at state-recommended planting dates (covering about 38% of IGP area) in most of the Western and Middle IGP. Importantly, our risk-based assessment shows where the results are not as clear cut and which strategy is the least risky. This is especially important in the Middle IGP where farmers appear to have more flexibility to achieve comparable outcomes with several planting strategies. SIGNIFICANCE: In conclusion, the proposed approach provides a useful and novel tool for comparing different agronomic climate adaptation strategies from an economic risk perspective in a spatial framework.
546 _aText in English
597 _aClimate adaptation & mitigation
_bExcellence in Agronomy
_bAsian Mega-Deltas
_cSystems Transformation
_cResilient Agrifood Systems
_d United States Agency for International Development (USAID)
_dBill and Melinda Gates Foundation (BMGF)
_uhttps://hdl.handle.net/10568/145204
650 7 _aSustainable agriculture
_2AGROVOC
_92327
650 7 _aClimate resilience
_2AGROVOC
_928838
650 7 _aIrrigation
_2AGROVOC
_91164
650 7 _aSmallholders
_2AGROVOC
_91763
650 7 _aWillingness to Pay
_2AGROVOC
_98946
650 7 _aRice
_2AGROVOC
_91243
700 1 _aUrfels, A.
_8001711637
_gFormerly Sustainable Agrifood Systems
_94925
773 0 _tAgricultural Systems
_dUnited Kingdom : Elsevier Ltd., 2024.
_x0308-521X
_gv. 218, art. 104014
_wG444466
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/34570
942 _cJA
_n0
_2ddc
999 _c67603
_d67595