摘要
根据河北保定冉庄实验站实测资料,描述了地下水深埋区降水入渗补给过程。通过1991年8 m蒸渗仪实测资料,说明降水入渗过程中入渗锋面演变情况。地下水大埋深区包气带土壤含水量及降水入渗过程有以下3个特点:1包气带土壤含水量在垂向上具有分带的特点,从地表至1 m为Ⅰ带,从地下水面至地下水面以上2 m为Ⅲ带,介于Ⅰ带和Ⅲ带之间为Ⅱ带;2包气带土壤含水量具有季节性变化特征,包气带土壤含水量5月份最小,6-9月份较大:3降水入渗补给具有明显的滞后特征,从发生降水到该次降水对地下水入渗补给过程的结束,需要经历一个时程,包气带愈厚,时程愈长。
Based on the experimental data from Ranzhuang in Baoding Experimental Station for Water Resources, the article showed the process of rainfall infiltration feeding in the area of the groundwater with deep water table. There are three characteristics: 1. soil moisture in the zone of aeration has zonal characteristic, the zone from surface to 1m is called zone I and from groundwater table 2m is called zone Ⅲ, the zone between them is called zone Ⅱ; 2. soil moisture in zone of aeration has temporal characteristic; 3. rainfall infiltration feeding has later characteristic obviously.
出处
《南水北调与水利科技》
CAS
CSCD
2004年第3期33-35,共3页
South-to-North Water Transfers and Water Science & Technology
关键词
降水入渗补给
包气带
土壤含水量
rain fall
infiltration feeding
zone of aeration
soil moisture
