治穷致富 拦沙保库

Fighting Poverty to Become Rich and Trapping Sediment to Preserve Reservoir Capacity

汾河水库是担负着太原市供水、防洪和晋中盆地灌溉用水的大型水库,对山西省的经济发展具有重要作用。水库建成三十多年来,淤积泥沙3.1亿m^3,占总库容的43％。为缓解水库淤积,促进其上游地区群众脱贫致富,省政府决定,从1988年开始,每年投资2000万元,十年基本完成水库上游的水土流失治理。经过五年的综合治理,已完成综合治理措施面积751km^2,新增基本农田1.8万hm^2,新建拦泥淤地坝62座,引洪淤滩造地工程119处,营造、封育水保林草5.26万hm^2,治理度提高了20.4％,减少入库泥沙22.4％,取得了明显的生态效益、经济效益和社会效益。在总结治理经验的基础上,提出了后五年的治理方略和任务。

Fenhe reservoir is a large reservoir which is responsible for flood control, supplying water to Taiyuan City and irrigation in central Shanxi Basin, playing an important role in the economic development of Shanxi Province. For 30 years since its construction, 310 million m3 of sediment had been deposited in the reservoir, taking up 43% of the total storage capacity. The provincial government decided to basically complete the comprehensive harnessment of the upland area in 10 years with an annual investment of 20 milloin yuan. After 5 years of comprehensive harnessment, various measures were accomplished in an area of 751km2, increasing the base farmland by 1800hm2, building 62 silt arresters. The area of planting treesand closing off the afforested hills amounted to 5.26hm2. The degree of harnessent is increased by 20. 4% and sediment entered into the reservoir reduced by. 22. 4%. Obvious ecological, economic and social benefits were gained. Summing up the experience, the author put forward the general plan and task for the next 5 years.