新疆和田河干流水平衡要素定量分析

Quantitative Analysis on the Water Balance Factors of the Mainstream of the Hotan River in Xinjiang

利用水量平衡原理,结合实测的径流资料,对和田河干流的水平衡要素进行分析。结果表明,和田河干流来水量与下泄水量的年内分配与年际变化均较上游出山口来水更不均匀;和田河干流的输水效率取决于干流来水与前一年来水的丰枯情况。研究成果对干流河道整治、控制洪水漫溢、提高输水效率具有重要的参考价值。

Using the water balance theory and the mea-sured runoff data,the factors of the water balance are analyzed for the mainstream of the Hotan river in this paper. The main results show that the annual distribution and the inter-year variation of the inflow and outflow of the main river are more uneven than that of the inflow at the mountain-exit point in the upper steam and the water conveyance efficiency in the mainstream of the Hotan river depends on the inflow of water at the confluence of the two tributaries and the water quantity in the previous year. These study results are helpful for the river regulation,flood overflowing control and improvement of the conveyance efficiency.