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Climate change phenomenon is posing a serious threat to sustainable corn production in Ghana. This study investigated the impacts of climate change onthe rain-fed corn yield in the Dangme East district, Ghana by using Aquacrop model with a daily weather data set of 22-year from 1992 to 2013. Analysisof the weather data showed that the area is facing a warming trend as the numbers of years hotter and drier than the normal seemed to be increasing.
Aquacrop model was assessed using the limited observed data to verify model’s sufficiency, and showed credible results of R2 and Nash-Sutcliffeefficiency (NSE). In order to simulate the corn yield response to climate variability four climate change scenarios were designed by varying long-termaverage temperature in the range of ±1 °C ~ ±3 °C and average annual rainfall to ±5 % ~ ±30 %, respectively. Generally, the corn yield was negativelycorrelated to temperature rise and rainfall reduction. Rainfall variations showed more prominent impacts on the corn yield than that of temperaturevariations. The reduction in average rainfall would instantly limit the crop growth rate and the corn yield irrespective of the temperature variations.
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참고문헌 (22)
참고문헌 신청
Abedinpour, M. / 2012 / Performance evaluation of Aquacrop model for maize crop in a semi-arid environment / Agricultural Water Management 110 : 55 ~ 66
Armah, F. A. / 2010 / Impact of floods on livelihoods and vulnerability of natural resource dependent communities in northern Ghana / Water 2 (2) : 120 ~
Armah, F. A. / 2011 / Food security and climate change in drought-sensitive savanna zones of Ghana / Mitigation and Adaptation Strategies for Global Change 16 (3) : 291 ~ 306
Browne Klutse, N. A. / 2013 / Farmer’s observation on climate change impacts on maize (zea mays)production in a selected agro-ecological zone in Ghana / Research Journal of
Doss, C. R. / 2000 / How does gender affect the adoption of agricultural innovations? The case of impoved maize technology in Ghana / Agricultural Economics 25 (1) : 27 ~ 39
Armah, F. A. / 2010 / Impact of floods on livelihoods and vulnerability of natural resource dependent communities in northern Ghana / Water 2 (2) : 120 ~
Armah, F. A. / 2011 / Food security and climate change in drought-sensitive savanna zones of Ghana / Mitigation and Adaptation Strategies for Global Change 16 (3) : 291 ~ 306
Browne Klutse, N. A. / 2013 / Farmer’s observation on climate change impacts on maize (zea mays)production in a selected agro-ecological zone in Ghana / Research Journal of
Doss, C. R. / 2000 / How does gender affect the adoption of agricultural innovations? The case of impoved maize technology in Ghana / Agricultural Economics 25 (1) : 27 ~ 39
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