摘要：The arable land quality assessment system is developed with Visual C++ coupled with ArcGIS engine. The system can provide basic functions of geographic information system, for example, map browsing, overlay analysis, and spatial interpolation. The program has both single-factor evaluation module and comprehensive evaluation module, which evaluate the land quality by field sampling data and other relevant information. In this paper, Xiping county in Henan province (China) is chosen as a sample area, fuzzy evaluation method and analytic hierarchy process are used to determine the membership function and the weight of evaluation factors respectively. Field sampling data, land use, soil type and administrative map are used as the supporting data. Using this program, the spatial distribution and areas of three level of farmland quality are obtained.
