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隰县半沟流域在沟道治理中,按照“一次治理,一次成地”的原则,采取综合治理、全面配套、高起点、超常规的治理措施,1995～1996两年一次性投资476.7万元,建成大小淤地坝50座,挖修排洪渠6.5km,推成坝地67hm~2.经济效益预测分析结果表明,一次成地的淤地坝经济效益优于自然淤积而成的坝系工程,净效益可提高39.7%,净效益年值可提高38.6%,效益费用比可提高12.2%,工程投资回收期提早1.35年.
In the ditch management of Juxian County Semi-Ditch Basin, in accordance with the principle of “one-time management and once-for-all”, the comprehensive management, comprehensive support, high starting point and unconventional governance measures were taken. From 1995 to 1996, the one-time investment was 4.767 million yuan , Built 50 large-scale silt dam dig dig drainage channel 6.5km, pushed into the dam 67hm ~ 2. Economic benefit prediction analysis shows that once into the silt dam economic benefit is better than naturally silted dam system The net benefit of the project can be increased by 39.7%, the annual net benefit can be increased by 38.6%, the benefit-cost ratio can be increased by 12.2% and the project payback period can be increased by 1.35 years.