Changing the planting date as a climate change adaptation strategy for riceproduction In Kurunegala district, Sri Lanka

Dharmarathna, W. R. S. S., Herath, Srikantha and Weerakoon, S. B., (2014). Changing the planting date as a climate change adaptation strategy for riceproduction In Kurunegala district, Sri Lanka. Sustainability Science, 9 103-111

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  • Sub-type Journal article
    Author Dharmarathna, W. R. S. S.
    Herath, Srikantha
    Weerakoon, S. B.
    Title Changing the planting date as a climate change adaptation strategy for riceproduction In Kurunegala district, Sri Lanka
    Appearing in Sustainability Science
    Volume 9
    Publication Date 2014
    Place of Publication Tokyo
    Publisher Springer Japan
    Start page 103
    End page 111
    Abstract The effect of changing the planting date on the dry season rice yield was simulated by using the software Decision Support System for Agrotechnology Transfer (DSSAT 4.5) for four rice varieties grown in Kurunegala district, Sri Lanka under expected climate change. Daily weather data up to the year 2090 were downscaled to the district from Global Climate Model outputs under the emission scenarios A2 and B2 published by the Intergovernmental Panel on Climate Change using the Statistical Downscaling Model (SDSM 4.2). The DSSAT model was applied to simulate future rice yields from four rice varieties grown in the district under three different planting dates: (1) planting in May—the base condition; (2) advancing the planting date by 1 month, i.e., to June; and (3) planting 1 month earlier, i.e., in April. Results show that the seasonally averaged dry season rice yield would increase compared to the base condition when the planting date is advanced by 1 month and, on the other hand, the seasonally averaged rice yield would decrease compared to the base condition when the planting date is delayed by 1 month for all four varieties under both A2 and B2 scenarios. Advancing the rice planting date by 1 month for all four rice varieties can be identified as a non-cost climate change adaptation strategy for rice production in Kurunegala district.
    Copyright Holder Springer Japan
    Copyright Year 2012
    Copyright type All rights reserved
    ISSN 18624065
    DOI 10.1007/s11625-012-0192-2
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    Created: Mon, 14 Apr 2014, 17:13:35 JST