用水泥产量估算黄河上中游河道采砂量

摘要

假定各省水泥不跨省外运，并且各年生产的水泥基本消耗完，借用各省在黄河流域的GDP比重，估算黄河上中游6个省（区）的水泥消耗量，若水泥�大砂按1�1．19～1�1．82估算，则黄河上中游潼关以上2000—2012年平均每年需在河道采砂1．13亿～1．73亿t，占黄河多年平均年输沙量16亿t的7．1％～10．8％，其中2012年采砂量为1．93亿～2．95亿t。%It was assumed that the cement was used inside the provinces and all the annual production of cement consumption is completed. We calculated the economic production proportion of each province in the Yellow River basin and used the proportion to estimate the cement consumption quantity in the Yellow River basin. Taking the proportion of 1�1. 19-1�1. 82 between cement and sand as an example, we estimated that the annual average consumption of sand excavation is 1.13×108-1.73×108 tons during the period of 2000-2012 in the Yellow River basin, making up 7. 1%-10. 8% of mean annual sediment discharge of 1. 6 billion tons, of which, the sand excavation in 2012 is 1.93×108-2.95×108 tons.