LIÊN KẾT HỆ THỐNG PHÂN LOẠI ĐỘ PHÌ ĐẤT FCC (FERTILITY CAPABILITY CLASSIFICATION) VỚI HỆ THỐNG THÔNG TIN ĐỊA LÝ GIS (GEOGRAPHIC INFORMATION SYSTEM) HỖ TRỢ ĐÁNH GIÁ ĐỘ PHÌ NHIÊU ĐẤT

Võ Quang Minh, Lê Quang Trí, Lê Thị Anh Thư (trang 129-137, 166)

Từ khoá:  phân loại, độ phì, hệ thống phân loại độ phì, FCC, hệ thống thông tin địa lý, GIS, đất, đánh giá

Summary

A combination of fertility capacity classification (FCC) with geographic information systems (GIS) in supporting soil fertility assessment

There are many ways to couple GIS with FCC. This prototype study combined several GIS layers of FCC soil fertility modifiers: soil texture, soil pH, soil salinity, soil types, top soil thickness, corresponding with type, substrata types, modifiers C, L, S, g, g+, d, a, e, k, I, c, c+, f, f+… A new coverage of the FCC soil fertility classification was produced. Based on FCC system definition of modifiers and related recommendation linked with GIS ability in map and data manipulation, spatial recommendations on water, fertilizers use, soil fertility improvement… for the study were created. For further study, the comparison between the map showed results of FCC and present land use map as well as the results of experiments for validation of the FCC system in the case at district level.