通过对1990-2013年河南省县域农作物规模比较优势、效率比较优势和综合比较优势的计算及处理,利用ArcGIS技术平台对河南省各类作物优势产区分布格局进行热点分析,并对数据进行筛选处理绘制出各类作物综合比较优势变化状况图和优势布局图.结果表明,河南省粮食作物比较优势受规模优势和效率优势共同主导,河南省非粮农作物生产综合优势主要受规模优势主导,同时非粮作物除部分连片产区形成稳定发展外,其他地区发展变化幅度较大;整体上河南省农作物生产已初具连片优势,但结构布局仍不明晰,有待进一步调整.%Based on the calculation and processing of county level crop scale comparative advantage, efficiency comparative advantage and comprehensive comparative advantage in Henan Province from 1990 t0 2003, the ArcGIS technology platform was used to analyze the distribution pattern of various crop production areas in Henan Province, and a picture of the changes in the comprehensive comparative advantage of various crops and the layout of the advantages were drawn based on screening of the data. The results show that the comparative advantage of grain crops in Henan Province is co-dominated by scale advantage and efficiency advantage, while the comprehensive advantage of non-grain crops production in Henan Province is mainly dominated by scale advantage. Meanwhile, the non-grain crops development varies greatly in range, except for the stable development in some contiguous production areas. On the whole crop production in Henan Province has begun to display the advantage of contiguous production, but the structural layout is still not clear, and needs further adjustment.
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