| 利用地中渗透仪观测资料进行降雨入渗补给规律分析 |
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| 引用本文： | 周旻,靳孟贵,魏秀琴,朱中道.利用地中渗透仪观测资料进行降雨入渗补给规律分析[J].地质科技情报,2002,21(1):37-40. |
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| 作者姓名： | 周旻 靳孟贵 魏秀琴 朱中道 |
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| 作者单位： | 1. 中国地质大学工程学院，湖北，武汉，430074
2. 河南省环境水文地质总站,河南,郑州,450006 |
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| 基金项目： | 国家自然科学基金资助项目 ( 4 9972 0 83) |
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| 摘 要： | 利用郑州地下水均衡场地中渗透仪实测资料，分析了降雨入渗补给的年际变化以及入渗补给过程中的滞后现象。通过计算降雨入渗系数，确定了降雨量与入渗量的定量关系，评价了不同降雨量、不同包气带岩性和厚度条件下的入渗补给量。研究表明，地下水埋深较小时，降雨入渗系数随着埋深的增加而增大，1m以下则逐渐减少，3m以下趋于稳定；当包气带岩性单一时，降雨入渗系数随岩性的不同而变化，即砂质土大、粘性土较小，而含有薄层粘土夹层的亚砂土最小。
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| 关 键 词： | 降雨入渗系数 地中渗透仪 包气带 补给规律 年际变化 降雨量 入渗量 |
| 文章编号： | 1000-7849(2002)01-0037-04 |
| 修稿时间： | 2001年9月19日 |
ANALYSIS OF PRECIPITATION RECHARGE USING OBSERVED DATA OF LYSIMETER |
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| ZHOU Min ,JIN Meng gui ,WEI Xiu qin ,ZHU Zhong dao.ANALYSIS OF PRECIPITATION RECHARGE USING OBSERVED DATA OF LYSIMETER[J].Geological Science and Technology Information,2002,21(1):37-40. |
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| Authors: | ZHOU Min JIN Meng gui WEI Xiu qin ZHU Zhong dao |
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| Institution: | ZHOU Min 1,JIN Meng gui 1,WEI Xiu qin 2,ZHU Zhong dao 2 |
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| Abstract: | Based on the lysimeter data taken from water balance experimental station in Zhengzhou,we have analysed the features of lag and the yearly variation of the infiltration recharge process.By calculating precipitation recharge coefficient,we have set up the quantitive relationship between precipitation and recharge in large time scale and evaluated precipitation recharge amount under various precipitation and lithology of vadose zone.Analytic results indicate that the precipitation recharge coefficient becomes larger along with increasing of the water table depth while water table is shallower than 1 m and becomes smaller under 1 m and then tends to stabilize below 3 m.It is also clear that among homogeneous vadose zone,precipitation recharge coefficient of sand soil is larger than that of clay soil,and moreover,the precipitation recharge coefficient of sabulous clay involved lamella clay is minimum. |
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| Keywords: | precipitation recharge coefficient lysimeter vadose zone infiltration lag |
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