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为解决农作物秸秆资源化再利用问题,在统计数据与参考文献的基础上,利用草谷比系数、可收集利用系数、养分含量对张掖市秸秆产量及养分进行了估算,2008-2012年秸秆的估算产量为582.06万吨,含氮3.11万吨,磷1.87万吨,钾4.98万吨,分析了张掖市秸秆的利用现状.为提高资源利用率,保护生态环境,以张掖市2012年129.99万吨秸秆资源为基础,根据产业发展的实际,设计构建了包括肥料、饲料、食用菌、沼气、生活燃料、工业产品等6个链条在内的秸秆资源静脉产业链,可在不增加投入的情况下,多产生8.87亿元的直接经济效益,为张掖市及其他地区提供农业废弃物资源化处理及清洁生产的有效范式.
In order to solve the resource reuse of crop stalks, based on the statistical data and references, the yield and nutrients of stalks in Zhangye City were estimated by using the coefficient of grass-to-grain ratio, the utilization coefficient and nutrient content were collected, and the estimation of straw from 2008 to 2012 The output is 5,820,600 tons, 31,100 tons of nitrogen, 18,700 tons of phosphorus, 49,800 tons of potassium, the utilization status of straw in Zhangye City was analyzed.In order to improve the utilization of resources and protect the ecological environment, with 1299,900 tons of straw Resources, based on the actual development of the industry, we designed and constructed a venous industrial chain of straw resources including six chains of fertilizers, feed, edible mushrooms, biogas, living fuel and industrial products. Without any increase in investment, Generate more direct economic benefits of 887 million yuan and provide an effective paradigm for resource-oriented treatment and cleaner production of agricultural waste in Zhangye and other areas.