HỆ THỐNG THÔNG TIN ĐỊA LÝ (GIS) LIÊN KẾT VỚI HỆ THỐNG HỖ TRỢ QUYẾT ĐỊNH DSSAT HỖ TRỢ ĐÁNH GIÁ QUY HOẠCH SỬ DỤNG ĐẤT ĐAI

Võ Quang Minh, Ngô Ngọc Hưng (trang 97-105)

Từ khoá:  hệ thống thông tin địa lý, GIS, hệ thống hỗ trợ quyết định, DSSAT, đánh giá, quy hoạch, sử dụng đất

Summary

Merging decision support system for agrotechnology transfer (DSSAT) with GIS for evaluation of land use planning

A case study on merging DSSAT with GIS technique is aimed to test for the ability to delineate the spatial distribution of predicted rice yield at different fertilizer levels in the area. It will help for decision makers in soil fertility evaluation, land use planning, and develop the strategies in fertilizer use, crop production… Result of study show that GIS can link with decision support system by using the output results of DSSAT on yield of rice at different fertilizer levels, which assigned on different land mapping units combined with predicted climate. 16 land mapping units were assigned with output results of rice yield at 5 levels of N fertilizer (0, 30, 60, 90, 120kgN/ha), created from DSSAT, by Idrisiw to create 5 maps of rice yield at 5 N fertilizer levels.