摘要
耕地经济效益的高低直接关系到农民切身利益,是衡量区域经济发展和人们生活水平的重要依据。以定西市鲁家沟镇太平村为例,通过实地调查,广泛收集当地农户玉米种植制度调整下农业生产的详细资料,运用毛利分析和投入产出理论,对玉米种植制度调整下耕地的经济效益进行对比分析。同时构建柯布-道格拉斯(C-D)生产函数模型,研究玉米种植制度调整下生产投入要素对耕地经济效益的影响。结果表明:玉米种植制度调整后,投入产出率有更大的提升空间,耕地经济效益更为可观;玉米生产处于规模收益递增阶段,种子费用(贡献率0.25)、化肥费用(贡献率0.08)、劳动用工(贡献率0.87)是影响当地耕地经济效益的主要因素。
The level of economic benefit of cultivated land is relevant to vital interests of farmers,which is an important basis for measuring regional economic development and improvement of people＇s living standards. Taking Taiping village of Dingxi as example,through field survey to widely collect the detailed information of local farmers growing corn during adjustment of corn cropping system,and using gross profit analysis and input- output theory,the economic benefits of cultivated land of before and after the transformation of the local corn cropping systems were contrasted and analyzed; at the same time,Cobb- Douglas production function model was built to research the impact of production input factors on the economic benefit of cultivated land after the transformation of the cropping systems. The results show that after the transformation of corn cropping systems,input- output ratio has greater room for improvement; economic benefit of cultivated land is more impressive; corn production stay in the stage of increasing return to the scale,seed costs（ contribution rate 0. 25）,fertilizer costs（ contribution rate 0. 08） and labor force（ contribution rate 0. 87） are the main factor of affecting of economic benefit of cultivated land in the local.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2016年第5期41-46,共6页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金项目(71263003)资助
关键词
经济效益
玉米种植制度
C-D生产函数
太平村
economic benefit
corn cropping system
C-D production model
Taiping village
