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机构地区:[1]河北省邯郸水文水资源勘测局,河北邯郸056001
出 处:《水科学与工程技术》2013年第6期17-21,共5页Water Sciences and Engineering Technology
摘 要:通过实测径流还原计算,得出区域内1956。2010年不同分区地表水资源量系列。结合区域内下垫面条件和降水情况,分析地表水资源量在空间分布上山区大于平原,且年内分配不均,主要集中在汛期的6-9月,年际变化在空间和时间上差别均较大。应用Mann—KendMl非参数统计检验法和有序聚类分析法,对山区、平原和全市天然径流量系列进行显著性、突变分析与处理.得出全市和山区地表水资源量系列呈明显下降趋势,平原区则无显著性变化趋势.且1964年和1977年是两个显著的突变点。Through measured reduction calculation of runoff, derived from the series of surface water resources of 1956- 2010 in the different region. According to the conditions of underlying surface and precipitation in the region, the surface water resources in mountainous areas is greater than the Plains, unequal distribution of the year, it is large different in space and time of interannual variability. The analysis and processing of dramatically and mutation on the natural runoff se- ries of the mountains,the Plains and the city's through Mann-Kendall non-parametric statistics tests and sequential clus- tering method, the series of surface water resources in mountainous areas and city is evident downward trend, no signifi- cant change in the plain, and mutations in 1964 and 1977 are two notable points.
分 类 号:TV121[水利工程—水文学及水资源]
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