一是数据缺口:缺少部分社会经济与自然地理数据,如各市GDP、非农从业人口、财政支农支出、农业机械总动力、降水量、积温等,这些是构建完整“影响因素指标体系”和深化面板回归模型分析的关键。解决方法:查阅对应年份的《山东省统计年鉴》、《中国县域统计年鉴》、各市统计年鉴及气象局公开数据,进行补充与核实。
二是实践认知:缺少对研究区域农业发展现状的实地调研。解决方法:在研究中期,选取典型县域(如德州、济宁)开展线上问卷或线下访谈,补充一手信息,增强研究的现实针对性。
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