周光涛.呼兰河流域河川径流年内分配变化特征分析[J].水电能源科学,2018,36(9):39-38
呼兰河流域河川径流年内分配变化特征分析
Study on the Intra annual Runoff Distribution Characteristics in Hulan River Basin
  
DOI:
中文关键词:  河川径流  年内分配  特征指标  变化趋势  呼兰河流域
英文关键词:runoff  intra annual distribution  characteristic indexes  variation tendency  Hulan river basin
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作者单位
周光涛 黑龙江省水利水电勘测设计研究院 黑龙江 哈尔滨 150080 
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中文摘要:
      掌握河川径流年内分配变化特征对优化区域水资源利用具有重要意义。基于呼兰河流域兰西站1952~〖JP〗2014年逐月径流资料,分析了流域径流年内各季、各月分配情况,运用不均匀系数Cu、集中度Cd、绝对变化幅度ΔR和相对变化幅度Cm等指标分析了流域径流年内分配特征,并采用累积滤波器法、Mann Kendall法和R/S分析法分析了径流及其特征指标的历史、未来变化趋势。结果表明,呼兰河流域各季年代、年际径流量相差较大,各季径流量均呈减少变化;径流年内分布呈“单峰型”,主要集中在4~10月,该时段平均径流量占到全年的94%以上;未来一段时间内,年、各季、1、5、6、8~12月径流量将表现为减少变化,其余时段呈增加变化;Cu、Cd、ΔR和Cm分别以-0.007/10a、0.004/10a、-0.511×108m3/10a、-42.727/10a的趋向率变化,现在和未来的年内各月径流差异逐渐减小,径流年内分配趋于集中。流域内农业迅猛发展,尤其是灌溉用水的急〖JP3〗剧增加,在一定程度上改变了流域河川径流年内分配特征。研究成果可为呼兰河流域水资源规划管理提供参考。
英文摘要:
      It is of great significance for the optimization of regional water resources to master the distribution characteristics of the intra annual runoff. Based on the monthly runoff data from 1952 to 2014 at the Lanxi station of the Hulan river basin, the seasonal runoff distribution and the monthly runoff distribution were analyzed, and the distribution characteristics of inter annual runoff were obtained by using Cu (unevenness coefficient), Cd (Concentration degree), ΔR (absolute variation amplitude) and Cm (relative variation amplitude). Meanwhile, the cumulative filter, the Mann Kendall method and the R/S analysis method were used to study on the historical and future variation tendency of the inter annual runoff and its inter annual distribution characteristics indexes. The results show that the decadal and yearly runoff in the Hulan river basin is different, and the runoff in each season is decreasing. Meanwhile, the distribution type of the inter annual runoff only has a single peak, and the inter annual runoff is mainly concentrated in April to October, and the runoff in this period accounts for more than 94% of the whole yearly runoff. At the same time, the runoff in yearly, seasonal, January, May, June, August, September, October, November and December is decreasing, and the remaining period will be increasing, Cu, Cd, ΔR and Cm is changing by the rate of -0.007/10a, 0.004/10a, -0.511×108m3/10a and -42.727/10a respectively. The differences of the monthly runoff are gradually reduced at now and in the future, and inter annual runoff distribution tends to be concentrated. At all, the rapid development of the agriculture in the Hulan river basin, especially the rapid increase of the irrigation water changed the inter annual runoff distribution characteristics in 〖JP2〗some degree. The research results provide reference for planning and management of water resources in Hulan river basin.
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