黄河中游多沙粗沙区治理对黄河水资源的影响  

Influence of Control of Major Source Area of the Coarse Sediment in the Middle Yellow River to Water Resources of the Yellow River

作　　者：周鸿文[1] 龙虎[1] 乔永杰[1] 徐建华[1] 

机构地区：[1]黄河水利委员会水文局,河南郑州450004

出　　处：《中国水土保持》2007年第5期27-29,共3页Soil and Water Conservation in China

基　　金：黄河水利委员会治黄专项[黄规计(2004)197号]

摘　　要：黄河中游多沙粗沙区地表水含沙量极高,减少这一地区进入黄河的泥沙极其重要。多沙粗沙区的地表径流量为31.18亿m3,扣除泥沙后的清水资源量为28.21亿m3。各治理区特别是一期治理区,对黄河产水的负效应远小于减沙的正效应。对黄河中游多沙粗沙区实施治理,会减少入黄水量,但同时能减少入黄泥沙,因拦减泥沙而节约下游输沙用水使黄河增加的可用水量远大于措施本身的拦减水量。治理程度越高,拦沙比例越大,相对节约的水资源量越多。在同一减沙比例下,因减少输沙用水而相对“增加”的水资源量,一期治理区大于二期治理区,二期治理区大于三期治理区。The sediment concentration of surface water in the major source area of the coarse sediment of the middle Yellow River is extremely high and it is most important to reduce the sediment coming into the Yellow River in this area.The surface runoff of this area is 3.118 billion m3 and the clear water resources 2.821 billion m3 after deducting sediment.The negative effect of each control area especially phase I area to water yield of the Yellow River is much smaller than that of the positive effect.The control of the major source area of the coarse sediment will reduce the coming water of the river and also reduce the sediment coming into the river at the same time.The increased available water of the river saved from water use for sediment transport in the downstream because of sediment trapped and reduced at the middle reaches is far greater than that of retained and reduced water volume.The higher degree of control and greater proportion of sediment retaining,relatively the more water resources will be saved.Under the conditions of same proportion of sediment reduction,the reduction of water use for sediment transport and relative 'increased' water resources in phase I control area is greater than that of in phase II control area and phase II control area is greater than that of in phase III control area.

关 键 词：水资源 影响 水土保持 治理 多沙粗沙区 黄河 

分 类 号：TV882.1[水利工程—水利水电工程]