甘肃定西市城区降雨特征与水情分析

Analysis on Rainfall Feature and Water Regimen of Dingxi Urban Area of Gansu Province

甘肃定西城区的降雨年内分配不均,年际变化较大。区内的关川河、东河和西河为季节性河流。分析了各河流径流量的年内和年际变化情况,在此基础上,探讨了城区水系存在的问题,提出了纵向优化、水环境优化和功能优化3个解决水系问题的对策。

The rainfall distribution of Dingxi urban area of Gansu province is uneven during the year and its interannual change is obvious. The Guanchuan river, the east river and the west river are seasonal rivers. Based on analyzing the year and interannual change of rivers, it probes into the existing problems, proposes the longitudinal optimization, water environment optimization and function optimization to solve the urban water system problems.