Abstract
Abstract: Critical source area approaches to catchment management are increasingly being recognised
as effective tools to mitigate sediment and nutrient transfers. These approaches often assume
hydrological connectivity as a driver for environmental risk, however this assumption has rarely been
tested. Using high resolution monitoring, 14 rainfall events of contrasting intensity were examined in
detail for spatial and temporal dynamics of overland flow generation at a hydrologically isolated
grassland hillslope in Co. Down, Northern Ireland. Interactions between overland flow connectivity and
nutrient transfers were studied to test the critical source area hypothesis. While total and soluble
phosphorus loads were found to be representative of the size of the overland flow contributing area
(P=
| Original language | English |
|---|---|
| Pages (from-to) | 499-508 |
| Number of pages | 9 |
| Journal | Science of the Total Environment |
| Volume | 435-436 |
| Publication status | Published - 01 Jul 2012 |
ASJC Scopus subject areas
- Environmental Engineering
- Waste Management and Disposal
- Pollution
- Environmental Chemistry