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依据窟野河流域王道恒塔和温家川两个代表性水文站点实测月、年径流量资料,运用不均匀系数、集中度(期)、变化幅度等方法指标,分析了窟野河流域径流年内变化规律;采用累积滤波器分析了各月径流量的变化趋势。结果表明:1)两个水文站径流年内分配均呈现“双峰型”分布,其峰值分别出现在8月和3月,8月份径流量达到最大值,1月降到最低值。2)两个水文站的不均匀性和集中程度20世纪70年代最大,21世纪初最小。各年代最大径流量出现时间都集中在7月中下旬至8月上中旬。3)两个水文站的月径流量变化趋势不同,王道恒塔站各月径流量基本是在20世纪60年代末和70年代初出现减少趋势;温家川站则是在20世纪70年代末和80年代初出现减少趋势,且减少幅度明显大于王道恒塔站,主要是温家川站受人类活动影响较大所致。
Based on the monthly and annual runoff data measured at Wangdaohengtake and Wenjiachuan stations in the Kuye River Basin and using the indicators such as non-uniform coefficient, concentration degree and change range, the change of runoff in the Kuye River Basin during the year The cumulative trend of monthly runoff was analyzed by using the cumulative filter. The results showed as follows: 1) The annual distribution of runoff in both hydrological stations showed “bimodal ” distribution, the peak appeared in August and March, respectively. The runoff reached the maximum in August and dropped to the lowest in January. 2) The inhomogeneities and concentrations of the two hydrological stations were the largest in the 1970s and the smallest in the early 2000s. The maximum runoff of all ages occurred in mid-July to mid-August. 3) The monthly variations of monthly runoff of the two hydrological stations are different. The monthly runoff of Wang Daheng Pagoda Station in each month basically decreased in the late 1960s and early 1970s; Wen Jiachuan station was in the late 1970s and 1980s At the beginning of the year, the trend of decrease appeared, and the reduction rate was obviously larger than that of Wang Daoheng station, mainly because Wenjiachuan Station was greatly affected by human activities.