基于GIS的农业土地适宜性评价系统研制技术

以河北省邱县为研究对象，以MapInfo为开发平台，建立了该区的农业土地适宜性评价系统。该系统能够对收集的各类数据进行系统的动态管理，依据所建立的数学模型，完成农业土地适宜性的单因素评价和多因素综合评价，实现评价区土地适宜性的分等定级，具有相关的统计、分析、规划和管理功能。系统集数据管理、土地评价、办公自动化于一体，有力地促进了研究区土地利用与管理工作的规范化、系统化和现代化。结合农业土地适宜性评价系统的开发实践，对土地适宜性评价的实现过程和关键技术进行了探讨。

Agricultural Land Suitability Assessment System Based on GIS

Based on the MapInfo, an agricultural land suitability assessment system (ALSAS) for Qiuxian County in Hebei Province was developed, which can deal with all kinds of data timely. On the basis of the established assessment model, the ALSAS can complete single or multi factor assessment of land suitability, so the class of land suitability can be attained. It has other functions related to land assessment such as analysis, statistic, and land plan. Data management, land assessment, and office automation are integrated into the ALSAS. This system is highly praised by local land management departments because it has effectively accelerated the standardization,systematization and modernization of their routine work. From the practice of developing the ALSAS, its implementation process and key technology were discussed.