The use of the flashiness index as a possible indicator for nutrient loss prediction in agricultural catchments
Year: 2024
Type: article
Abstract: A characterisation of the hydrological behaviour of four small agricultural catchments in Estonia and Norway was carried out using a flashiness index (FI).FI reflects the frequency and rapidity of short term changes in runoff values.A comparison of FIs based on hourly and average daily discharge indicated large within-day variations over very short time intervals.Large differences were observed between the Norwegian and Estonian catchments, irrespective of whether average daily discharge or hourly discharge values were used.A comparison of the FI and the base flow index (BFI) showed that high FI values corresponded to low BFI values.Norwegian catchments with high FI or low BFI values showed high nutrient losses, whereas the contrary was observed for the Estonian catchments.Although the FI does not a priori give information about the flow processes within catchments, we believe that the FI, as well as the BFI, might be helpful in explaining differences in nutrient and soil losses between catchments.
Source: Työväentutkimus Vuosikirja
DOI: 10.60910/a9ku-x4a5
Authors: Deelstra, Johannes, Iital, Arvo
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
Funder: Bioforsk
OpenAlex ID: W2521264131