Yellow River Water Resources and its Series Similar Processing

摘要

Based on Yellow River water resources investigation and accessing, this paper analyzes the situation varieties characteristics of water resources since 1956. On the basis of it, this paper analyzes the reasons about the water resources situation varieties for the first step. The research result shows, since 1990 the water resources variety characteristics of the Yellow River expresses primarily that under the situation of precipitation changing little, the water resources especially the natural runoff appears the trend that it presents to reduce gradually, it is more outstanding particularly for the last five years. The natural and factual coming water in river is reduced, which are all the result that weather to change and the human activity synthesize the function. Finally, this paper aiming at the current water resources variety characteristics in Yellow River basin, puts forward to the water resource amount that can serves for the water resources planning and water regulation under the condition of underlying surface.