选择耕地利用的投入产出指标集构建数据包络分析模型，在评价各决策评价单
元(decision making unit, DMU)有效性的基础上，以固定产出最小化投入为优化原则探寻表
现无效的各DMU的优化空间，分析其劳动力投入是否存在冗余及区域差异，并使用投入指标
集调整方法验证以上对于劳动力投入冗余的分析结论，以此提供农业劳动力的区域差别化调
控对策. 以湖北省为例，评价1987～2012 年期间各县级单元的耕地利用效率及其时空分异特
征. 研究结果表明，80% 的区域均存在不同程度的劳动力投入冗余，其中鄂西山区和鄂东南丘
陵地区的冗余率最高；2007 年后，随着农业劳动力的持续转移，江汉平原和鄂东北大别山区
的劳动力投入对耕地利用效率的影响程度变大，劳动力投入冗余状况有所缓解. 因此，有必要
采取或加速农业劳动力转移或稳固农业劳动力的对策来应对提升区域耕地利用效率的不同需
求.

This paper provides recommendation to decision makers for the regional policy
of differentiated agricultural workforce by analyzing the level of local workforce redundancy.
A data envelopment analysis (DEA) model is used to study efficiency of arable land
usage, the situation of labor redundancy, and the influence of labor redundancy on the
arable land usage efficiency in Hubei Province between 1987 and 2012. Spatial-temporal
distribution of the above factors are investigated. The results indicate that, from 1987
to 2007, the laborforce has little impact on the arable land usage. Labor redundancy of
different degrees existed in 80% of counties, among which the west and southeast regions
were the highest. The situation was improved in the Jianghan Plain and northeast Hubei
with sustainable transfer of the agricultural workforce from 2007 to 2012. It is therefore
concluded that targeted policy should be taken either to accelerate laborforce transfer or
to secure the agricultural workforce according to the local degree of redundancy.