Research Article

The Characteristics of Runoff Process Structure Changes under the Influence of Climate Change and Human Activities and the Decomposition of Contribution Rate of Impact Factors

Table 1

Statistic characteristics of annual runoff distribution in Xilinhe River.

PeriodUneven coefficient/Complete adjustment coefficient/Concentration rate/%Concentration periodRelative change/(108m3)
Composite vector directionMaximum runoff time

1960-19691.30.4700.48790.6April 150.848
1970-19791.250.4370.50885.8April 100.841
1980-19891.330.4860.56793.3April 180.567
1990-19991.240.4650.538171.25July 60.971
2000-20101.570.5710.671121.1May 160.574