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| DOI：10.13522/j.cnki.ggps.2017.0420 |
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| Financial Analysis of the Light Drip Irrigation System for Emergence Use in Drought Fighting |
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FENG Junjie, JIA Yanhui, ZHANG Hongxia, SUN Xiulu, WANG Yuxiu, ZHAO Qingqing, HUANG Xiuqiao
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Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences/Key Laboratory of Water-Saving Agriculture of Henan Province, Xinxiang 453002, China; The Bureau of Water Resources of Shangqiu Municipality, Shangqiu 476000, China; Yanchi Water Authority of Ningxia, Wuzhong 750015 , China
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| Abstract: |
| 【Objective】 The fixed drip irrigation system has some shortcomings including high costs, difficult for reuse, inconvenient maintenance and management. To overcome these problems, a light drip irrigation system for emergent use in drought fighting was developed. The purpose of this paper is to analyze its financially viability.【Method】 The analysis was based on the structure of the system. The costs considered in the analysis included direct and indirect costs, the operation cost and its devaluation; the benefits considered included the save in costs compared with the fixed system, increased profits due to amelioration of the adverse impact of the drought, and the consequent increased income. The calculation was based on the method of investment static index. 【Result】The maximum area of the light drip irrigation system controlled was 0.67 hm2, the total investment was 1 730 yuan/set, the total annual operation cost was 537.50 yuan/hm2, and the system cost was lower 45.3% than that of the regular fixed drip irrigation system, the crop yield was raised by 8%～13%, the total economic benefit of the users was raised about 25%～30%, the investment in the light drip irrigation system could be returned after 0.71 years, and the benefit-cost ratio was 1.40. The system hence had a good economic benefit. 【Conclusion】 The light drip irrigation system is financially viable and acceptable by farmers. Its high benefit-cost ratio means that it provides a vial irrigation technique for emergent use in drought fighting. |
| Key words: anti-drought; drip irrigation; engineer investment; benefit analysis |
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