Vol.:(0123456789) 1 3 Modeling Earth Systems and Environment https://doi.org/10.1007/s40808-019-00708-6 ORIGINAL ARTICLE Climate change adaptation strategies: a prospect toward crop modelling and food security management Raihanul Islam 1  · Md. Mazharul Islam 2  · Md. Nazrul Islam 3  · M. Nazrul Islam 3  · Sukanta Sen 4  · Reasat Kamal Faisal 1 Received: 28 October 2019 / Accepted: 11 December 2019 © Springer Nature Switzerland AG 2019 Abstract This study is to assess the current trend of implemented climate change adaptation strategies, food security management system, and crop modelling in the context of Lechraganj Char Union, Harirampur Subdistrict, Bangladesh. The adverse impacts on the local char dwellers of various major disasters in the study area are mainly drought; food, riverbank erosion, and norwester accelerated by climate change were elaborated in this study as well. This research paper also analyzes the implemented pre-disaster and post-disaster approaches of various climate change adaptation strategies to insecure the food security system by the local villagers. Both primary and secondary sources were used to illustrate the research problem and receiving proper outputs from the précised structure of the study. The nature and types of food insufciency, migra- tion process, occupation changes, agriculture process, socio-economic condition, and governmental and non-governmental organization steps in the study area were considered as research trimming. Keywords Climate change · Adaptation strategies · Natural disaster · Food security · Food insufciency Introduction The average condition of temperature, air pressure, rainfall, and humidity can be defned as the weather of a particular place, and usually, the analyzed average stipulation in the range of 25–30 years of the weather of a specifc area or region may be considered as a climate (Sen et al. 2009). Climate change can be defned as the logical and recorded assessment of the trend of modifcation of elements and characteristics of the minimum climate change by the range of 50–200 years. Destruction of the precious ozone (O 3 ) layer in the atmosphere and global warming due to the excessive emission of carbon dioxide (CO 2 ) aggregates the process of climate change to several countries of the world in a very alarming rate (Albaba 1993; Barton 1997; Fank- houser 1997; Feenstra and Buton 1998). Bangladesh is one of the most vulnerable countries in the world for climate change and global warming due to its geo- graphical position and the manmade process of over emis- sion of CO 2 gas by the wealthier and industrially developed countries as well as their own industrial revolution and rapid urban growth (Bohle et al. 1994; Carter et al. 1994; Denevan 1983; Kates 2000). The country is in the startling position for global warming and climate change as the rise of tem- perature, lower rainfall, and fash foods by her rivers, which causes various natural disasters all around the country (Fred- erick 1997; Hardesty 1983; Huq 2001; Smithers and Smit 1997). By the sudden hit of these natural disasters aggre- gated by the climate change process; the normal lifestyle and livelihood of rural communities are being oppressed, and rural poor or subleased farmers, fshermen, blacksmiths, potters, women, and children have to face a lot of suferings. In recent days, it has been a really highly taught job to feel any of the other seasons excluding summer, rainy, and winter due to the impacts of climate change; thus, autumn is not so visible in recent days in the country (Klein and Tol 1997; Smith and Cenhart 1996; Wigley 1985). The aver- age temperature of the north-western side of the country is almost 10 °C and 20 °C in the coastal areas during the winter * Raihanul Islam rabby.ad.ju@gmail.com 1 Urban Development Programme, BRAC, 75, Mohakhali, Dhaka 1212, Bangladesh 2 Govt. Bangabandhu Women’s College, Bagerhat, Khulna, Bangladesh 3 Department of Geography and Environment, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh 4 BARCIK, Flat #6A, House #3/1, Block #F, Lalmatia, Dhaka 1207, Bangladesh