Author(s): Lu Lu; Liang Zhao; Yiqi Yan; Zuoqiang Han
Linked Author(s): Yiqi Yan
Keywords: The Source region of the Yellow River Evolution law Water resources management Adaptive strategies
Abstract: The Yellow River source region has abundant water resources. It is a key area for the Yellow River water resource management. In the context of global climate change, the water resources situation in the source region of the Yellow River has undergone significant changes. This article is based on hydrology and meteorological data from 1956 to 2020, and uses Mann-Kendall test, moving T-test, and Pettitt test to analyze the runoff evolution law in the source region of the Yellow River. The results showed that the overall runoff in the source region of the Yellow River showed insignificant decrease trend. The mutation point might be happened in 1989 and 2004. The average runoff from 1990 to 2005 decreased by 4.8 billion cubic meters, or 23%, compared to the pre-1989 series. The average runoff from 2005 to 2020 increased by 5.4 billion cubic meters, or 32%, compared to the 1990-2005 series. The increase in precipitation combined with the rise in temperature during the snow-melting period is the main reason for the increase in water resources in the source region of the Yellow River. Based on the evolution characteristics of water resources, adaptive management strategies are proposed from the aspects of water resource allocation, reservoir utilization, and water resource management system.
Year: 2025