Research on the mechanism of water resource loss in east karst mountain area of Sichuan

AbstractOn the eve of the twenty-first century, the world is facing a water crisis of unprecedented magnitude and water crisis is more serious in the karst mountain area. Water loss, contradiction between provision and demand, water environmental ever increasingly exacerbation are serious in middle regions of Huaying mountain in Sichuan province, which belongs to the karst mountain area and influences people’s normal life and work. Furthermore, they had severe impacts on the construction and development of regional economy. With combination of field survey and indoor data analysis and calculation, the mechanism of water resource loss in this area has initially been identified; four main factors: climate change, topography, social economic growth, and human engineering activity are involved, decrease of rainfall and steep topography in the mountain region resulted in the shrink of water replenishment. In addition, social economic growth, expansion of human engineering activities led to great water consumpt...

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