Analysis on flood characteristics of the Xi Jiang River in Guangxi
In order to reduce the loss of Guangxi’s industry, agriculture and property caused by flood of the Xi Jiang River, the flood characteristics of the Xi Jiang River in Guangxi including annual dis-tribution characteristics, flood composition and branch/main stream floods encounter are fully ana-lyzed, based on the measured flood data spreading over several decades. The results show that the Liu Jiang River flood synchronizes with the mainstream flood in general, while the Gui Jiang River flood happens earlier and the Yu Jiang River flood happens later than the mainstream; that the Liu Jiang River contributes more to the forming of mainstream flood, while the Yu Jiang River and the Gui Jiang River have limited effect;that flood from the Liu Jiang River and the Hong He River have high probability to encounter, the actual encounter probabilities of the maximum, 7 d and 15 d flood volume, are 34. 1%,47. 7% and 53. 2%,respectively,and the magnitude of the encountered floods is large, 7 d flood volume is five to ten billion cubic meters, and 15 d flood volume is ten to twenty billion cubic meters;that the Yu Jiang River flood and its mainstream flood have low probability to <br> meet, and the Gui Jiang River flood almost dose not encounter with the mainstream flood, the en-counter probabilities of the annual maximum flood, maximum 7 d and 15 d flood volume are only 4. 5%,9. 1% and 15. 9%, respectively.
the Xi Jiang Riverflood characteristicsflood compositionfloods encounter
NETL
NSTL
万方数据
维普
