Conversion relationship of rainfall-soil moisture-groundwater in Quaternary thick cohesive soil in Jianghan Plain, Hubei Province, China

• 作者: Cheng Hu Jun Li Kun Huang Qing Wang Tian-wen Liu Ting-ting Shi Zhi-hua Chen
• 来源期刊: 中国地质（英文）
• 年，卷（期）: 2020,（3）
• 所属期刊栏目: Original Articles
• 页码范围: 462-472
• 页数: 11页
• 语种: 中文
• DOI: 10.31035/cg2020053

摘要

The scientific field test site of rainfall-soil moisture-groundwater conversion in Dabie Mountain Area-Jianghan Plain is located in the northern region of the Jianghan Plain,the transition zone between the Dabie Mountain Area and Jianghan Plain.It's a great field test site to study the material and energy exchange among rainfall,soil moisture,and groundwater of the Earth's critical zone in subtropical monsoon climate plain areas.This paper analyzed the connection between rainfall and volume water content (VWC) of soil at different depths of several soil profiles,and the dynamic feature of groundwater was discussed,which reveals the rainfall infiltration recharge of Quaternary Upper Pleistocene strata.The results show that the Quaternary Upper Pleistocene aquifer groundwater accepts a little direct rainfall recharge,while the lateral recharge is the main supplement source.There were 75 effective rainfall events among 120 rainfall events during the monitoring period,with an accumulated amount of 672.9 mm,and the percentages of effective rainfall amount and duration time were 62.50％ and 91.56％,respectively.The max evaporation depth at the upper part in Quaternary cohesive soil was no less than 1.4 m.The soil profile was divided into four zones: (1) The sensitive zone of rainfall infiltration within 1.4 m,where the material and energy exchange frequently near the interface between atmosphere and soil;(2) the buffer zone of rainfall infiltration between 1.4 m and 3.5 m;(3) the migration zone of rainfall infiltration between 3.5 m and 5.0 m;and (4) the rainfall infiltration and groundwater level co-influenced zone below 5.0 m.The results revealed the reaction of soil moisture and groundwater to rainfall in the area covered by cohesive soil under humid climate in Earth's critical zone,which is of great theoretical and practical significance for groundwater resources evaluation and development,groundwater environmental protection,ecological environmental improvement,drought disaster prevention,and flood disaster prevention in subtropical monsoon climate plain areas.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Tian-wen Liu		1	0	0.0	0.0
2	Cheng Hu		1	0	0.0	0.0
3	Qing Wang		1	0	0.0	0.0
4	Jun Li		1	0	0.0	0.0
5	Kun Huang		1	0	0.0	0.0
6	Zhi-hua Chen		1	0	0.0	0.0
7	Ting-ting Shi		1	0	0.0	0.0