水文年水循环属性探讨  

Discussion on Hydrological Cycle Attributes in Hydrological Years

作　　者：邹连文 庄会波 陈干琴 ZOU Lianwen;ZHUANG Huibo;CHEN Ganqin(Hydrology Center of Shandong Province,Jinan,Shandong 250002,China)

机构地区：[1]山东省水文中心,山东济南250002

出　　处：《山东水利》2024年第10期59-62,共4页Shandong Water Resources

摘　　要：根据莱芜河道水文站1956—2016年的历年逐月降水资料,每年最大4个月降水主要出现在汛期4个月,占年降水的75%以上,是流域蓄水既地表水、地下水的主要生长形成上升期,剩余8个月降水不到年降水的1/4,是流域蓄水既地表水、地下水的衰减消耗下降期。月模比系数差积过程线形象地表达了水文年水循环的年周期震荡过程,证明了水文年的水循环是一个相对日历年更为完整的年水循环过程。通过月降水径流回归分析,得出汛期月径流主要影响因素是月降水及前月降水;枯水期月径流主要影响因素是前月经流。也从一个侧面证明了水文年水循环是一个比日历年更为完整的年水文循环过程。据此进行每年12月、1月、2月3个月的径流预测是可行的,为研究水文年水循环规律提供参考。Based on the monthly precipitation data of Laiwu River hydrological station from 1956 to 2016,the maximum four-month precipitation mainly occurs in the same period of flood season every year,accounting for more than 75%of the annual precipitation,which is the main growth and formation period of surface water and groundwater in the basin.The precipitation in the remaining eight months is less than a quarter of the annual precipitation,which is the decline period of the attenuation consumption of both surface water and groundwater stored in the basin.The process line of the difference product of the monthly modulus ratio vividly expresses the annual oscillation process of the hydrological annual water cycle,which proves that the hydrological annual water cycle is a more complete annual water cycle process than the calendar year.Through the regression analysis of monthly precipitation runoff,it is concluded that the main influencing factors of monthly runoff in flood season are monthly precipitation and previous monthly precipitation.The main influencing factor of monthly runoff in dry season is previous monthly flow.It also proves from one side that the hydrological annual water cycle is a more complete annual hydrological cycle process than the calendar year.Therefore,it is feasible to forecast runoff in December,January and February of each year.It provides a reference for the study of hydrological annual water cycle.

关 键 词：水文年 水循环 月模比系数 差积过程线 回归分析 

分 类 号：TV213.4[水利工程—水文学及水资源]