摘要
计算年降水入渗系数对水资源量评价与转化十分重要。本文运用传统水位动态法及改进水位动态法分别计算陕西北部黄土塬区的年降水入渗系数,并通过对比分析得出适宜北方黄土塬区降水入渗系数的计算方法。研究结果表明:根据改进的水位动态法计算得出的黄土塬区降水入渗补给系数为0.063。根据传统水位动态法计算的黄土塬区降水入渗系数变化范围为0.03~0.16,相较之下偏差更大。两种方法所计算的年降水入渗系数结果均得以验证,然而改进的水位动态法计算黄土塬区的结果更加接近验证值,偏差较小,结果更为准确适宜,可为同类黄土地区水资源量研究提供借鉴。
The calculation of annual precipitation recharge coefficient is very important for the evaluation and transformation of water resources.In this paper,the traditional dynamic water level method and the improved dynamic water level method are used to calculate the annual precipitation recharge coefficient of the loess plateau in Shaanxi.The appropriate calculation method of precipitation recharge coefficient is found out for northern loess plateau area through comparative analysis.The results show that the improved dynamic water level method uses monthly accumulated data,and the calculated precipitation recharge coefficient is 0.063.In contrast,the precipitation recharge coefficient calculated by the traditional dynamic water level method has a large deviation,ranging from 0.03 to 0.16.The calculation results of the two methods are verified,but calculation results of the improved dynamic water level method are closer to the verified values,reducing the deviation.The results are more accurate and suitable for the northern loess plateau area.It can provide reference for the study of water resources in similar loess areas.
作者
李惠
王帅
张培栋
宋亚娅
LI Hui;WANG Shuai;ZHANG Pei-dong;SONG Ya-ya(Shaanxi institute of geological survey,Xi'an,710054,China;Shaanxi urban geology and underground space engineering technology research center,Xi'an,710068,China;Shaanxi institute of engineering prospecting,Xi'an,710068,China)
出处
《地下水》
2023年第6期10-12,52,共4页
Ground water
基金
陕西省公益性地质调查项目(公益[2019]27
公益[2020]02-02)。
关键词
降水入渗系数
水位动态法
黄土塬区
陕西
precipitation recharge coefficient
dynamic water level method
the loess plateau
Shaanxi province
