摘要
根据济南市南部山区卧虎山水库的日入库流量数据和卧虎山流域的降雨资料,利用数字滤波法对南部山区汛期径流进行基流分割。研究发现:不同年份的主汛期出现时间、年内基流量的变化不同;年际基流量相差悬殊;径流与基流的相关系数R值分别为0.75、0.83和0.78,呈现中度正相关关系;降雨量大时基流指数小,反之则大,表明基流指数与降雨量存在负相关关系。
According to the daily incoming flow data of Wohushan reservoir and the rainfall data of Wohushan basin,the digital filter method is used for base flow separation of Jinan southern mountains in flood season.By analyzing the results,it is found that the bccurrence fime of main flood seasons in different years and the variance of base flow within a year are different,and the inter-annual base flows are different greatly.Besides,a moderate positive relationship between runoff and base flow is found,and the correlation coefficients R are 0.75,0.83 and 0.78 respectively.When the precipitation is large,the base flow index is small,conversely,the base flow index is big.It is shown that there is a negative correlation between base flow index and precipitation.
出处
《济南大学学报（自然科学版）》
CAS
北大核心
2013年第4期414-418,共5页
Journal of University of Jinan(Science and Technology)
基金
山东省自然科学基金(ZR2012DL08)
山东省科技发展计划(2010GSF10630)
济南市科学技术发展计划(201101089)
关键词
济南南部山区
基流
基流分割
数字滤波法
southern mountain
base flow
base flow separation
digital filter method
