Groundwater seepage causes surface runoff and erosion during snowmelt in a tile-drained agricultural catchment: Field observations and modelling analysis

被引：4

作者：

Stuurop, Joris C. ^{[1
]}

van der Zee, Sjoerd E. A. T. M. ^{[2
]}

Thiis, Thomas K. ^{[3
]}

French, Helen K. ^{[1
]}

机构：

[1] Norwegian Univ Life Sci, Fac Environm Sci & Nat Resource Management, Hogskoleveien 12, N-1433 As, Norway

[2] Wageningen Univ & Res, Dept Environm Sci, Droevendaalsesteeg 3, NL-6708 PB Wageningen, Netherlands

[3] Norwegian Univ Life Sci, Fac Sci & Technol, Drobakveien 31, N-1433 As, Norway

来源：

CATENA | 2023年 / 220卷

关键词：

Erosion; Snowmelt; Groundwater seepage; Hydrology; SOIL-EROSION; TRANSPORT; QUALITY;

D O I：

10.1016/j.catena.2022.106680

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A significant overland flow and erosion event was documented and studied in an agricultural area with post-glacial marine sediments (southern Norway). Field observations and UAV-photography revealed that a large volume of water abruptly exfiltrated at the end of the snowmelt season. Numerical groundwater modelling aided in interpreting our observations, as well as comparison with prior study in the same catchment. It was hy-pothesized that a water storage capacity threshold of the subsurface was exceeded to cause the seepage, in combination with a transition from coarse to fine marine sediments. Furthermore, the spatial distribution of snow cover and snow melt rate, as well as the presence of manmade tile drainage, were found to have significant impact on the seepage event. The recurrence frequency of the event is unknown, warranting further study.

引用

页数：15