The water fluxes of the Yellow River to the sea in the past 50 years, in response to climate change and human activities

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	The water fluxes of the Yellow River to the sea in the past 50 years, in response to climate change and human activities
	Jiongxin Xu
	2005
关键词	Catchments Climate change Erosion Oceanography Precipitation (meteorology) Regression analysis Sediments Temperature
英文摘要	Since the 1970s, the water fluxes to the sea of the Yellow River have declined significantly. Based on data of precipitation, air temperature, the measured and "natural" river flow, the water diversion and consumption, and the areas of erosion and sediment control measures over the drainage basin, water fluxes to the sea of the Yellow River are studied in relation with the influences of changing climate and human activities. The Yellow River basin can be divided into different water source areas; multiple regression indicates that the variation in precipitation over different water source areas has different effect on water fluxes to the sea. In the period between 1970 and 1997, averaged air temperature over the whole Yellow River increased by about 1.0°C, from 16.5°C to 17.5°C, a factor that is negatively correlated with the water yield of the Yellow River. Water diversion and consumption has sharply increased and resulted in a significant decline in the water fluxes to the sea. Since the 1960s, erosion and sediment control measures have been practiced over the drainage basin. This factor, to a lesser degree, is also responsible for the decrease in water fluxes to the sea. A multiple regression equation has been established to estimate the change in water fluxes to the sea caused by the changes in precipitation, air temperature, water diversion and consumption, erosion, and sediment control measures, indicating that the contribution of water diversion and consumption to the variation in annual water flux to the sea is 41.3%, that of precipitation is 40.8%, that of temperature is 11.4%, and that of erosion and sediment control measures is 6.5%. © 2005 Springer Science+Business Media, Inc.
出处	Environmental Management
卷	35 期:5 页:620-631
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/24844]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Jiongxin Xu. The water fluxes of the Yellow River to the sea in the past 50 years, in response to climate change and human activities. 2005.