The subject of rapid economic and social development impact of global
climate change and the upper reaches of the Yellow River in the past
decade, Ningxia Yellow River water into Gansu substantial reduced,
resulting in Ningxia exit water also reduced to varying degrees, but the
water entry and exit difference (water consumption) has increased. In
this paper, comparative analysis of the Yellow River in Ningxia Section
from 2001 to 2012 and from 1956 to 1995 data, found the average years of
entry water by about 18%, leaving an average of about 23% less water
for many years, Ningxia Yellow River water consumption increased by
about 48%. Water impact from Meili Canal, Qixing canal, Qing Tongxia
east and west main canal, 211.73 m3/s annual flux above Qing Tongxia
Reservoir was evacuated by 2001 to 2012, more water in irrigated areas
back from Shi Zui Shan section of the Yellow River once again return to
the Yellow River, flow in the Ningxia exit section of the Yellow River
than Qing Tongxia station extra 102.99 m3/s; the point of view during
the year, due to the irrigation water from late March, the entry water
becomes greater than exit water of the Yellow River in Ningxia section,
effective irrigation due to precipitation increases in August, the
difference between entry water and exit water becomes narrow, with the
withdrawal of water regression in irrigated areas in downstream segment,
thus result of the Shi Zuishan exit section flow than the entry of water
cross section in varying degrees of increases in September, October and
December.
Water Consumption in Ningxia Reach of the Yellow River since Integrated Regulation
