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干旱区内流河流域水循环是干旱区古气候研究的热点,前人做了大量研究,但大部分研究主要利用气候代用指标重建古气候与古环境演化规律,长时间尺度模拟与重建对比研究较少。以石羊河流域为研究对象,在石羊河流域古环境记录基础上结合古气候模拟、全新世古季风模拟、湖泊能量与水量平衡模拟,古降水量和古径流量定量重建等方法,系统地模拟重建全新世时期石羊河流域水循环。可以看出模拟结果与重建结果具有很好的一致性,均指示中全新世是全新世“气候适宜期”。为干旱区流域性气候变化重建与模拟研究提供了新的视角。
In the arid region, the water cycle in the river basin is a hot research topic in the paleoclimate research of arid region, and many researches have done a great deal of researches on it. However, most of the researches mainly use the climatic proxies to reconstruct paleoclimate and paleoenvironmental evolution, and compare long-term scale simulations with reconstruction less. Taking the Shiyang River Basin as the research object and based on the paleoenvironmental records of the Shiyang River Basin, this paper systematically simulated the paleoclimate simulations, the Holocene monsoon simulation, the lake energy and water balance simulation, the paleo-precipitation and the paleofacial flow quantitative reconstruction Rebuild the Water Cycle of Shiyang River Basin in Holocene. It can be seen that the simulation results are in good agreement with the reconstruction results, indicating that the middle Holocene is the Holocene “climate suitable period ”. It provides a new perspective for the reconstruction and simulation of regional climate change in arid area.