Variation Characteristics and Their Impact Factors of Water Resources in the Hutuo River Basin during Last 50 Years
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Abstract:
According to the physical geographic environment and socio-economic development in the Hutuo River Basin, this river basin is divided into three water resources sub-regions: sub-region I upstream of Xiaojue as the water-forming and water-using environment, sub-region II between Xiaojue and Huangbizhuang as the water-forming environment, and sub-region III downstream of Huangbizhuang as the water-using environment. Based on the analysis of the hydrologic and meteorological data in the last 50 years and previous researches, the variation characteristics and their impact factors of water resources in the three sub-regions of the Hutuo River Basin were investigated. The results showed that the quantities of water resources in all of the three sub-regions decreased but the decreasing rates were different in each sub-region. Water resources in the sub-regions I and II had been affected by human activities and climate change, but the influence mechanism and degree were different in the two sub-regions. However, water resources in sub-region III had been affected by human activities only.
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