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论文以水循环发生巨大改变的黄河中游地区作为研究对象,利用GRACE卫星时变重力场模型以及黄河中游地区的水文数据,通过水循环系统的概化、子流域划分以及Mann-Kendall非参数检验等方法,对黄河中游地区以及各个子流域水储量变化进行研究。主要结论如下:近10 a,黄河中游地区水储量以年均3.79 mm等效水深的速度增加,而引起水储量增加的主要原因是该地区径流损失量减少,年均减少量超过2.93 mm等效水深;黄河中游地区水储量的空间变化差异性较大,水储量增加最大的区域是龙门—三门峡区间,年平均增加4.59 mm等效水深,而增加量较小的是三门峡—花园口区间,年平均增加2.71 mm等效水深,水储量增加居中的则是河口—龙门区间,年平均增加3.47 mm等效水深。
The paper takes the middle reaches of the Yellow River, whose circulation has undergone tremendous changes, as the research object. By using the GRACE satellite time-varying gravitational field model and the hydrological data in the middle reaches of the Yellow River, through the generalization of the water circulation system, subbasin division and Mann-Kendall nonparametric test, The research on the change of water reserves in the middle reaches of the Yellow River and various sub-basins. The main conclusions are as follows: In the recent 10 years, the water reserves in the middle reaches of the Yellow River increased at an average water depth of 3.79 mm. The main reason for the increase in water reserves was the decrease of runoff loss in the area with an average annual reduction of more than 2.93 mm Water depth in the middle reaches of the Yellow River. The area with the largest increase in water storage is the Longmen-Sanmenxia interval with an average annual increase of 4.59 mm in water depth, while the smaller increase is in the Sanmenxia-Huayuankou interval and the year An average increase of 2.71 mm equivalent depth of water, water storage increase is the middle of the estuary - gantry interval, the average annual increase of 3.47 mm equivalent depth.