@Article{LançasSaGaBoQuMaGa:2022:AsChCo,
author = "Lan{\c{c}}as, Vanderlei Gomes and Santarosa, Lucas Vituri and
Garpelli, Lia Nogueira and Borma, Laura de Simone and Quaggio,
Carolina Stager and Martins, Veridiana Teixeira de Souza and
Gastmans, Didier",
affiliation = "{Universidade Estadual Paulista (UNESP)} and {Universidad
Tecnol{\'o}gica del Uruguay (UTEC)} and {Universidade Estadual
Paulista (UNESP)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Universidade Estadual Paulista (UNESP)} and
{Universidade de S{\~a}o Paulo (USP)} and {Universidade Estadual
Paulista (UNESP)}",
title = "Assessment of the changes in contributions from water sources to
streamflow induced by urbanization in a small-sized catchment in
Southeastern Brazil using the dual stable isotopes of water (18O
and 2H)",
journal = "Environmental Monitoring and Assessment",
year = "2022",
volume = "194",
number = "5",
pages = "e357",
month = "May",
keywords = "Bayesian mixing model, Stable isotopes, Streamflow, Urban
hydrology.",
abstract = "Urban growth often results in changes in the urban hydrological
cycle, causing impacts on water availability in densely populated
regions. The water isotopologues can provide relevant information
about the origin of water under different hydrogeological
scenarios, aiding to implement better strategies for water
conservation in coupled natural-urbanized environments. In this
study, the isotopic compositions of multiple water sources were
assessed in a pristine (Ipanema National Forest, FLONA) and an
urbanized (Lavap{\'e}s catchment, SOR) watershed located in the
Sorocaba River basin (State of S{\~a}o Paulo, Southeastern
Brazil), seeking to understand the causes of isotopic variability
and to determine the relative contribution from different sources
to streamflow, using the Bayesian mixing model approach.
Differences in isotopic composition were observed, as FLONA
yielded the most depleted water (ca. \−7.5 \δ18O for
surface and groundwater and ca. + 11.0 d-excess), while SOR
yielded the most enriched water (ca. \−5.5 \δ18O for
surface and groundwater and \−3.8 \δ18O for the water
supply system), with evidence of evaporation (ca. + 8.2 d-excess).
The differences observed in isotopic compositions are related to a
combination of different factors, such as geological framework,
groundwater recharge, and evaporation associated with the
Itupararanga water reservoir. Both in FLONA and SOR, groundwater
discharge is the most important factor that regulates streamflow.
However, in SOR, losses from the water supply system were almost
constant along the year, representing an important contribution.
The results presented here highlight the use of isotope hydrology
techniques to solve problems related to urban hydrology.",
doi = "10.1007/s10661-022-10040-9",
url = "http://dx.doi.org/10.1007/s10661-022-10040-9",
issn = "0167-6369",
language = "en",
targetfile = "Lancas_2022_assessment.pdf",
urlaccessdate = "29 jun. 2024"
}