Climate change impact assessment on three major crops in the north-central region of Bangladesh using DSSAT

作     者：Atikur Rahman Mohammad Abdul Mojid Selina Banu 

作者机构：Department of Irrigation and Water ManagementBangladesh Agricultural UniversityMymensingh-2202Bangladesh Department of Agricultural and Industrial EngineeringHajee Mohammad Danesh Science and Technology UniversityDinajpur-5200Bangladesh 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2018年第11卷第4期

页      面：135-143页

核心收录：

学科分类：09[农学] 0901[农学-作物学] 

主　　题：climate change DSSAT MAGICC/SCENGEN model CERES model SUBSTOR model growing season length crop-water use 

摘      要：The potential consequences of climate change emanated from global warming are very alarming;the greatest concern is the potentially disastrous consequences on crop agriculture and food security in many parts of the *** is a country highly susceptible to climate change,but information in this regard is still *** study investigated the effects of climate change on three major crops-wheat,potato and rice-in the north-central region of *** climate change scenarios,A2 and B2,of the Intergovernmental Panel on Climate Change(IPCC)were generated by employing MAGICC/SCENGEN model together with the observed climate data of the *** growth and yield of the crops were simulated using DSSAT CERES-Wheat,SUBSTOR-Potato and CERES-Rice models under the present and projected future changing climatic *** a predicted 5.32℃ increase in temperature in the year 2100,the yield of wheat,rice and potato would decrease by 47.6%,67.8%and 38.6%,*** increased temperature would accelerate physiological maturity of the crops as reflected by their reduced length of growing season(LGS)by 1.20%to 18.5%.The reduced LGS would reduce seasonal evapotranspiration(ET)of the crops by shortening time-span for ET *** to dominant yield reduction over ET reduction,the water use efficiency(WUE)for grain/tuber and biomass yields would decrease with the changing *** reduced crop yields are an indicative of a potential future risk of food security in *** results of this study can therefore guide to adopt coping mechanisms in the light of climate change to ensure future food security of the country.