基于灰色关联下的广西粮食主要生产影响因素评价

通过对1995—2010年主要年份广西主要粮食（稻谷、玉米、大豆、薯类）产量与相关生产因素的灰色关联度动态分析，提出广西主要粮食生产的可持续发展途径，为农业可持续发展提供参考。运用灰色系统理论中的关联度分析法对1995—2010年其中6个主要年份与粮食生产有关的7个影响因素进行量化动态分析。结果表明：粮食产量与相关生产因素的关联度为播种面积〉城镇居民家庭人均购买粮食数量〉化肥施用量〉乡村从业人员〉农田有效灌溉面积〉单位面积产量〉农田总用电量。

Gray Relational Grade Analysis Between Yield and Relative Characters of Grain in Guangxi

The present study was conducted to analyze the gray relational grade between the grain yield and its relative characters of Guangxi grain （rice, corn, soybeans, potatoes ） in the years （ 1995—2010）, and to raise food production sustainable development in Guangxi, and provide reference resources for the sustainable development of agriculture.Based on the theory of gray relational system, the gray relational grade analysis was made between the grain yield and 7 relative agronomic traits in 6 years（1995—2010）. The results showed that the gray relational grade between the grain yield and its related traits was observed as follows：sown area〉the per capita amount of food purchased〉chemical fertilizers〉rural laborers〉effective irrigation area〉per unit area yield〉total electricity consumption of farmland.