Analysis on distribution characteristics of water resources in the Yangtze River basin in 2016
WANG Zhengxiang;ZHANG Jing;Hydrology Bureau,Changjiang Water Resources Commission;
According to the " 2016 Water Resources Bulletin of the Yangtze River Basin and Southwest Rivers",the characteristics of precipitation,surface water resources and groundwater resources in the Yangtze River basin are analyzed. The results show that:(1) annual precipitation is 1 205. 3 mm in 2016,10. 9% higher than the mean annual value;(2) surface water resources amount is 1. 179 67 × 10~(12) m~3,19. 7% higher than the mean annual value;(3) compared to the average value from 1980 to 2000,the amount of groundwater resources is 2. 706 5 × 10~(10) m~3,which is 8. 6% higher than mean annual value. The total amount of water resources is 20% higher than the mean annual value,which is 1. 194 71 × 10~(12) m~3. The areas with high precipitation and runoff values are mainly distributed in Poyang Lake system,main stream below Hukou and Taihu Lake basin. The amount of precipitation and surface water resources in these three areas respectively exceed 20% and 40% than the usual year. The amount of precipitation,surface water resources and groundwater resources in the main stream below Hukou and Taihu Lake basin are all ranked first in the regions. Precipitation and surface water resources in 2016 are more concentrated than the usual year.
【CateGory Index】： TV213.4