库布齐沙漠是中国第七大沙漠，2000-2015年沙产业发展迅速，规模较大。库布齐模式在国内外影响力很大，实现了防沙治沙和生态经济的双赢。但库布齐模式在科学界也存在较大争议，主要表现在库布齐模式的水资源承载力和沙产业的效益评价方面。运用数据包络分析方法（DEA法）评价了库布齐模式中3种沙产业模式2015年的经济效益。结果表明：在3种沙产业模式中，光伏发电综合利用模式和生态旅游模式投入产出综合效率最高，达到1.000，高于生态饲料加工模式的综合效率且3种沙产业模式的纯技术效率均实现DEA有效；3种沙产业模式投入产出规模效率均较高，均值为0.978，最优为光伏发电综合利用模式和生态旅游模式。在此基础上，提出了库布齐模式存在的问题、沙产业今后发展的方向与对策建议。
The Hobq Desert is the 7th largest desert in China. From 2000 to 2015, the scale of the sand industry in the Hobq Desert was great and it developed rapidly. The "Hobq model" had a significant impact on domestic and abroad regions and achieved a win-win effect on the prevention and control of the desertification and the maintenance of the ecological economy. But "Hobq model" had a controversy in the domain of the science, especially on the bearing capacity of the water resources and the benefit of the sand industry. At present, there is a few research on the quantitative evaluation of the benefit of the "Hobq model". It is a key point that how to evaluate the benefit of the sand industry in the Hobq Desert. This paper used the DEA analysis method to evaluate the economic benefits of three sand industry models in 2015. The results showed that the model of the comprehensive utilization of the photovoltaic power generation and the ecotourism generated the highest input-output comprehensive efficiency, which were 1.000. It is higher than that of comprehensive efficiency of the ecological feed processing model. Furthermore, the pure technical efficiency of three sand industry models was effective to the DEA. The input-output efficiency of the three sand industry models were relatively high as a whole, which was 0.978. The photovoltaic power generation and the ecological tourism were optimal. Based on the analysis above, the deficiency of the "Hobq model" was proposed, and the development trend and the proposal were pointed out.
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