论文部分内容阅读
兴修水利工程,改善农业生产条件,每年增加的效益是水、肥、种、药、机械、人工和管理等综合因素的结果。其中水利应分摊总效益的份数,即灌溉效益分摊系数,是一个复杂且可值得研究的问题,现结合观音阁水库工程进行探讨。一、按水在农作物生产成本构成中比例确定灌溉分摊系数目前,灌溉效益计算中,常采用农作物历史产量调查或通过灌溉增产效益试验推算的方法,对比灌溉前后增产情况,选定灌溉分
The construction of water conservancy projects to improve agricultural production conditions, the annual increase in the benefits of water, fertilizer, seed, medicine, machinery, labor and management and other integrated results. Among them, the share of water conservancy should share the total benefit, that is, the benefit ratio of irrigation benefit, which is a complex and worthwhile issue to be studied. Now it is discussed with Guanyinge reservoir project. First, according to the proportion of water in the crop production cost to determine the proportion of irrigation sharing Currently, the calculation of irrigation benefits, often using crop historical production survey or by irrigation yield estimation test method, comparing the yield before and after irrigation, selected irrigation