School of Mathematics and Statistics, Ningxia University, Yinchuan, China.
Ningxia Research Center of Technology on Water-Saving Irrigation and Water Resources Regulation, Yinchuan, China.
PLoS One. 2022 Apr 1;17(4):e0265931. doi: 10.1371/journal.pone.0265931. eCollection 2022.
Since the Yellow River is a main source of water in Ningxia China, maintaining its healthy ecological environment is vital to Ningxia and the neighboring areas. Changes of land use caused by human activities such as population growth, urbanizing process, and industrial and mining construction would affect the balance and cycle of water in the Basin. Therefore, investigating hydrological responses of land use changes can provide insights into the characteristics and evolution of runoff the Yellow River Basin in the Ningxia section. This has imperative and practical significance to the rational use, allocation, and planning of water resources in a changing environment. In this paper, we analyzed the meteorological and hydrological elements of changing characteristics of the Yellow River Basin in the Ningxia section. Then we selected a distribution-based hydrology model of SWAT in combination with GIS to simulate annual and monthly runoff under different land use scenarios. Finally, we analyzed the influence caused by the changes of land use on runoff. We concluded that it is appropriate to lay a decision-making foundation to manage water resources of the Yellow River Basin in the Ningxia section.
由于黄河是中国宁夏的主要水源，因此保持其健康的生态环境对宁夏和周边地区至关重要。人口增长、城市化进程、工矿建设等人类活动引起的土地利用变化会影响流域的水平衡和水循环。因此，研究土地利用变化的水文响应可以深入了解宁夏段黄河流域径流量的特征和演变。这对合理利用、配置和规划变化环境下的水资源具有迫切的现实意义。本文分析了黄河宁夏段流域气象和水文要素的变化特征。然后，我们选择了基于分布的 SWAT 水文模型，并结合 GIS 模拟不同土地利用情景下的年、月径流量。最后，我们分析了土地利用变化对径流量的影响。我们得出的结论是，为黄河宁夏段水资源管理奠定决策基础是恰当的。
