In: Journal of Hydrology and Hydromechanics, vol. 63, no. 3
Anna De Girolamo - Antonio Lo Porto - Giuseppe Pappagallo - Francesc Gallart
Detaily:
Rok, strany: 2015, 263 - 272
Kľúčové slová:
Natural hydrological regime; Temporary stream; Hydrological modelling; Indicators of hydrological alteration.
URL originálneho zdroja: http://www.ih.savba.sk/jhh
O článku:
In this paper, we present an approach to evaluate the hydrological alterations of a temporary river. In these
rivers, it is expected that anthropogenic pressures largely modify low-flow components of the flow regime with consequences
for aquatic habitat and diversity in invertebrate species. First, by using a simple hydrological index (IARI) river
segments of the Celone stream (southern Italy) whose hydrological regime is significantly influenced by anthropogenic
activities have been identified. Hydrological alteration has been further classified through the analysis of two metrics: the
degree (Mf) and the predictability of dry flow conditions (Sd6). Measured streamflow data were used to calculate the metrics
in present conditions (impacted). Given the lack of data from pristine conditions, simulated streamflow time series
were used to calculate the metrics in reference conditions. The Soil and Water Assessment Tool (SWAT) model was
used to estimate daily natural streamflow. Hydrological alterations associated with water abstractions, point discharges
and the presence of a reservoir were assessed by comparing the metrics (Mf, Sd6) before and after the impacts. The results
show that the hydrological regime of the river segment located in the upper part of the basin is slightly altered, while the
regime of the river segment downstream of the reservoir is heavily altered. This approach is intended for use with ecological
metrics in defining the water quality status and in planning streamflow management activities.
Ako citovať:
ISO 690:
De Girolamo, A., Lo Porto, A., Pappagallo, G., Gallart, F. 2015. Assessing flow regime alterations in a temporary river – the River Celone
case study. In Journal of Hydrology and Hydromechanics, vol. 63, no.3, pp. 263-272. 0042-790X (until 2019) .
APA:
De Girolamo, A., Lo Porto, A., Pappagallo, G., Gallart, F. (2015). Assessing flow regime alterations in a temporary river – the River Celone
case study. Journal of Hydrology and Hydromechanics, 63(3), 263-272. 0042-790X (until 2019) .