以东北地区110个商品粮基地县为例,构建粮食可持续生产能力评价指标体系,运用因子分析法对其进行综合评价和分析,并依据Q型聚类结果划分强可持续生产能力型、较强可持续生产能力型、较弱可持续生产能力型、弱可持续生产能力型和极弱可持续生产能力型5种空间类型。为促进区域粮食综合生产能力提高提供较为科学的依据。图1,表3,参7。
Grain sustainable production is an important foundation in ensuring China' s grain security. As one of the main output region of grain production, northeast China plays an important role in the strategy of national grain security. In this article, taking 110 counties of commodity grain bases as the cases, the comprehensive assessment index system of grain sustainable production ability was established. Basic characters i and regional differences of grain sustainable production ability in northeast China were comprehensively examined by using the technique of fac- tor analysis and software SPSS 13.0. And five spatial types were classified according to the results. The purpose is to provide scientific base for improvement of grain comprehensive production ability.