GIS-BASED ASSESSMENT OF LAND SUITABILITY FOR AGRICULTURAL PRODUCTION IN GIA BINH, BAC NINH PROVINCE, VIETNAM

Tóm tắt

This study presents a GIS-based assessment of land suitability for agricultural production in Gia Binh, Bac Ninh province. Based on land characteristics and land use requirements, 6,209.38 hectares of agricultural land were classified into four main land use types. The results indicate that 3,999.55 hectares are currently classified as having low suitability for agricultural production, emphasizing the need for soil quality improvement and more effective land use planning. Only 4.46% of the agricultural area is considered highly suitable for rice production, the local’s main crop. While land use types 1, 2, and 4 have over 90% of their area classified as suitable, land use type 3 has a slightly lower suitability at 88.27%. Additionally, 271.82 hectares are deemed unsuitable for agricultural production, including 259.21 hectares specifically unsuitable for rice cultivation. Fifteen land mapping units were identified through the overlay of thematic maps, including soil type, terrain, texture, fertility, and irrigation. The land suitability classification map shows that 95.62% of the agricultural land is suitable for cultivation, although the majority falls into the low suitability category. To enhance agricultural productivity and ensure sustainable land use, it is essential to improve soil fertility, upgrade irrigation systems, and optimize fertilization practices. Moreover, local authorities should implement appropriate land use policies and consider reallocating areas unsuitable for agriculture to alternative, more productive land uses.