关键词: 评价, 评价

Abstract: This paper based on the perspective of input-output ratio, taking Cobb Douglas production function as the basis, calculates the main crops’economic benefit, cost and per cubic meter water’s benefit in Minle County. The results show that the main crops’economic benefit in Minle County was relatively low due to high labor cost and low crop planting mechanization level. Fertilizer, seed and water accounted a larger proportion in crop cost investment; comparing with barley, wheat, potato (Ke Xin) and corn, per cubic meter water’s benefit of rape is the highest; barley is the first water consumption crops. By using Stata analysis software, this paper concluded that the influence degree of different cost in per unit of crops output further showed that barley was the labor intensive crops. Seed, fertilizer, machinery inputs have significant impact on the different crops unit production, water has significant impact on the unit production output of wheat, corn and rape. Therefore, in the inland arid region which is extremely short of water resources, farmers should have the reference of input and output efficiency in future crops planting, choose optimization of economic benefit and water saving efficiency from the perspective of effectively using water resources, improving water efficiency and benefit.