XÂY DỰNG CƠ SỞ DỮ LIỆU ĐẤT PHỤC VỤ SẢN XUẤT NÔNG NGHIỆP xây dựng TẠI XÃ VÂN DU, TỈNH THANH HOÁ

Abstract

The purpose of this study was to build a land database for agricultural production in Van Du commune, Thanh Hoa province. The indicators selected for building the database include: soil type, mechanical composition, fertility, slope, soil layer thickness, and irrigation conditions. The research results showed that the land assessment are represented by thematic (single - factor) maps. Using GIS technology, these single - factor maps were overlaid to obtain land unit maps with LMUs containing land data for local agricultural production. The research results showed that agricultural land is mostly steep, accounting for approximately 50.9%, with low fertility, a cultivation layer thickness of 30 - 50cm suitable for agriculture, and limited irrigated area, accounting for only 4.23% of the total surveyed agricultural area.