基于灰关联熵的中国农业能源投入与粮食产出关系研究

通过灰关联熵量化农业投入对农业产出的贡献,以探求在保证粮食产出的基础上,减少农业能源投入的科学路径。结论表明:农田灌溉、化肥、农药投入对粮食产出影响较大,但效率偏低;机械和机械用油投入的加大预示着农业生产效率的提高,可以弥补农业劳动力缺口。因此,目前中国在保证粮食产量基础上,减少农业能源投入的合理路径是提高灌溉、化肥、农药等农业能源投入的利用效率,并加速向有机化、精细化和低投入方向转变。

Relationship between Agricultural Energy Input and Food Output of China Based on Gray Gelational Entropy Analysis

With gray relational entropy analysis,this paper attempts to seek reasonable path to reduce energy input on the basis of assurance of agricultural output by quantifying the contribution of energy inputs to agricultural output.Conclusion shows that irrigation,chemical fertilizers and pesticides put a greater impact on agricultural output,but efficiency is low;agricultural machinery improves efficiency of agricultural production,and makes up the gap of labor force lacking.Therefore,on the basis of ensuring food production,in order to reduce agricultural energy inputs,the efficiency of irrigation,fertilizers,pesticides and other agricultural inputs should be improved,and the transformation to organic,fine and low-input agricultural production should be accelerated.