沙地马铃薯不同灌溉方式的经济效益分析  

Analysis of economic benefit of different irrigation techniques for potatoes planted in sandy soil

作　　者：弋翠[1] 汪有科[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100

出　　处：《水利经济》2008年第2期60-64,共5页Journal of Economics of Water Resources

基　　金：陕西省重大科技攻关项目(2006kz08-G3)

摘　　要：从投资回收期和益本比2个方面,对靖边县沙地马铃薯半固定式喷灌、滴灌、大型喷灌机喷灌3种灌溉方式进行经济效益分析,在经济分析的基础上,采用层次分析法,对3种灌溉方式进行综合效益评价。结果表明,半固定式喷灌、滴灌、大型喷灌机喷灌的投资回收期分别为2.1 a,0.6 a,0.9 a,效益费用比分别为2.6,7.9,7.6,滴灌的经济效益十分明显;3种灌溉方式的优劣排序为:滴灌最好,半固定式喷灌次之,大型喷灌机喷灌较差。The economic benefits of three irrigation techqiues for potatoes planted in sandy soil in Jingbian County,sprinkling irrigation,drip irrigation and use of a large-scale sprinkling machine irrigation,were analyzed based on the repayment period of investment and the benefit-cost ratio.The results show that the repayment period of sprinkling irrigation,drip irrigation,and a large-scale sprinkling machine irrigation is 2.1 a,0.6 a,and 0.9 a,respectively,and the benefit-cost ratio is 2.6,7.9,and 7.6,respectively.The economic benefit of the drip irrigation is extremely obvious.Based on the economic analysis,comprehensive benefits of the 3 kinds of irrigation listed above were evaluated using the analytic hierarchy process.The results indicate that drip irrigation is the most satisfactory,sprinkling irrigation is in second place,and the large-scale sprinkling machine irrigation is the worst.

关 键 词：马铃薯 喷灌 滴灌 节水灌溉 经济效益 层次分析法 综合效益 

分 类 号：F323.3[经济管理—产业经济] S275[农业科学—农业水土工程]