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棉花是关系到国计民生的重要战略物资,棉花产量受多种因素影响,通过分析各生产因素对棉花产量增长的贡献率,可以找出促进棉花产量增长的根本因素,为保障棉花市场供给提供理论依据和决策支持。基于影响棉花产出增长的四个主要因素:土地投入、物质费用投入、劳动力投入、灾害,通过生产函数分别测算了各因素对棉花产量增长的生产弹性和贡献率。分析发现,科技进步对棉花生产中的贡献巨大,土地投入是影响棉花产出增长的首要制约因素,其次资本投入,劳动力和灾害对棉花产出的影响为负,最后提出找出相应的政策建议。
Cotton is an important strategic material related to the national economy and the people’s livelihood. Cotton production is affected by many factors. By analyzing the contribution rate of each factor to cotton yield growth, we can find the fundamental factors that promote cotton yield growth and provide a theoretical basis for ensuring cotton market supply And decision support. Based on four main factors affecting the cotton output growth: land input, material cost input, labor input and disasters, the production elasticity and contribution rate of each factor to the cotton output growth are respectively calculated through the production function. It is found that the contribution of science and technology to cotton production is huge. Land investment is the primary factor that affects the output growth of cotton. Secondly, the impact of capital investment, labor force and disaster on cotton output is negative. Finally, we put forward the corresponding policy suggestions .