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<p>Banana (Musa spp.) is an economically and culturally important horticultural crop in Northeast India; however, its cultivation is highly sensitive to soil, terrain, and agro-climatic constraints. This study employs a GIS-based Multi-Criteria Decision-Making (MCDM) approach to evaluate land suitability for banana cultivation in Goalpara district, Assam, by integrating key soil, terrain, hydrological, and land-use parameters. Seven thematic layers soil texture, soil depth, soil pH, soil drainage, soil stoniness, slope, and groundwater status were weighted according to their relative influence on banana productivity and integrated using a weighted overlay technique. The analysis classified land into four suitability categories: Highly Suitable, Moderately Suitable, Marginally Suitable, and Not Suitable. The results reveal pronounced spatial variability in banana suitability across the district. A total of 4124 hectares was identified as highly suitable, with the largest share located in Matia Circle (2476&#xa0;ha), followed by Dudhnoi (1,418&#xa0;ha), Rangjuli (154&#xa0;ha), Lakhipur (49&#xa0;ha), and Balijana (25&#xa0;ha). Highly suitable areas are primarily associated with flat terrain, deep well-drained alluvial soils, and low soil stoniness under the humid subtropical agro-climatic conditions of the Lower Brahmaputra Valley. In contrast, marginal and unsuitable areas are constrained by poor drainage, higher soil stoniness, and unfavorable micro-topography. Notably, Balijana Circle contains approximately 3,838 hectares of marginally suitable land, indicating significant potential for future expansion through targeted interventions such as improved drainage and soil management practices.</p>

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Spatial analysis of agro-climatic land suitability for banana plants in Goalpara district, Assam, North East India

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月20日

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  • Kalyanjit Sarmah,
  • Parag Jyoti Kashyap,
  • Ranjit Sarma,
  • Pranjit Kumar Sarma

摘要

Banana (Musa spp.) is an economically and culturally important horticultural crop in Northeast India; however, its cultivation is highly sensitive to soil, terrain, and agro-climatic constraints. This study employs a GIS-based Multi-Criteria Decision-Making (MCDM) approach to evaluate land suitability for banana cultivation in Goalpara district, Assam, by integrating key soil, terrain, hydrological, and land-use parameters. Seven thematic layers soil texture, soil depth, soil pH, soil drainage, soil stoniness, slope, and groundwater status were weighted according to their relative influence on banana productivity and integrated using a weighted overlay technique. The analysis classified land into four suitability categories: Highly Suitable, Moderately Suitable, Marginally Suitable, and Not Suitable. The results reveal pronounced spatial variability in banana suitability across the district. A total of 4124 hectares was identified as highly suitable, with the largest share located in Matia Circle (2476 ha), followed by Dudhnoi (1,418 ha), Rangjuli (154 ha), Lakhipur (49 ha), and Balijana (25 ha). Highly suitable areas are primarily associated with flat terrain, deep well-drained alluvial soils, and low soil stoniness under the humid subtropical agro-climatic conditions of the Lower Brahmaputra Valley. In contrast, marginal and unsuitable areas are constrained by poor drainage, higher soil stoniness, and unfavorable micro-topography. Notably, Balijana Circle contains approximately 3,838 hectares of marginally suitable land, indicating significant potential for future expansion through targeted interventions such as improved drainage and soil management practices.