文档介绍：第 卷 第 期 水 资 源 与 水 工 程 学 报
3 2 年 3 月 on characteristics of Fenghe River runoff from
1956 - 2016
OUYANG Wei1,2 WANG Xiao1,2 ZHOU Weibo1,2
, ,
. School of Water and Environment Chang an University Xi an China . Key Laboratory of Subsurface Hydrology
(1 , ’ , ’ 710054, ; 2
and Ecological Effect in Arid Region Chang an University Ministry of Education Xi an China
( ’ ), , ’ 710054, )
Abstract
: Based on the measured runoff data from the Qindu County Hydrological Station in the Fenghe
River Basin from 1956 to 2016, the annual variation characteristics was analyzed and the abrupt changes
of runoff in three periods (interannual, rainy and drought period) were discussed, which were then veri-
t
fied using sliding test. Results showed that the annual runoff of Fenghe River showed an overall decrea-
6 3
sing trend from 1956 to 2016, and the decreasing rate was 1. 757 1 × 10 m / a. The annual distribution
of runoff was