Calorie-based seasonal multicrop land suitability analysis for regional food nutrition security in Bangladesh

Rubaiya Binte Mostafiz, Ryozo Noguchi and Tofael Ahamed ()
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Rubaiya Binte Mostafiz: University of Tsukuba
Ryozo Noguchi: University of Tsukuba
Tofael Ahamed: University of Tsukuba

Asia-Pacific Journal of Regional Science, 2021, vol. 5, issue 3, No 2, 757-795

Abstract: Abstract Cereal-based food consumption and agricultural practices contribute to food nutritional insecurity, which has become a threatening issue in South Asian countries. The purpose of this study was to develop a seasonal land use planning model incorporating diversified crops for regional self-sufficiency based on land suitability and a balanced caloric demand. A multicriteria decision-making analysis was undertaken, and multicrop land planning maps were developed with the help of a geographical information system and fuzzy membership functions. The vegetation index data were collected according to the crop calendar. Factors and constraints were generated in ArcGIS 10.4® to perform spatial analysis. Fuzzy overlay analysis was performed to determine the suitable areas for crop production. The seasonal cropland suitability assessment results were validated with data from a survey of Bangladesh. The analysis determined that in the Kharif-1 season, 42% (3469 km) of the total area was suitable for growing vegetables, and in the Kharif-2 season, the area of suitability was 55% (4543 km). However, under the present practices, only 12% and 18% of the land was used for vegetable cultivation during the Kharif-1 and Kharif-2 seasons, respectively, less than the regional requirements. In addition, in the Rabi season, the most suitable zones for cereals, vegetables, pulses, oilseeds and potatoes were 35% (2891 km), 19% (1569 km), 15% (1239 km), 10% (826 km) and 21% (1734 km) of the total land area, respectively. Moreover, the land areas suitable for farming pulses and oilseeds were 15% (1239 km) and 10% (826 km), respectively. The integrated model proposed herein can be implemented in the management of land allocation for diversified crop production, providing more decision-making information for policymakers to ensure regional food nutrition security in the target area as well as in other South Asian countries.

Keywords: Calorie demand; Food nutrition; Fuzzy membership; Fuzzy multicriteria decision-making; GIS; Land suitability; Seasonal crop mapping; Regional self-sufficiency (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s41685-021-00197-5

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