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Pregled bibliografske jedinice broj: 1095811

Appraisal of geochemical composition and hydrodynamic sorting of the river suspended material: Application of time-integrated suspended sediment sampler in a medium-sized river (the Sava River catchment)


Lučić, Mavro; Mikac, Nevenka; Bačić, Niko; Vdović, Neda
Appraisal of geochemical composition and hydrodynamic sorting of the river suspended material: Application of time-integrated suspended sediment sampler in a medium-sized river (the Sava River catchment) // Journal of hydrology (2020) doi:10.1016/j.jhydrol.2020.125768 (ostalo, prihvaćen)


CROSBI ID: 1095811 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Appraisal of geochemical composition and hydrodynamic sorting of the river suspended material: Application of time-integrated suspended sediment sampler in a medium-sized river (the Sava River catchment)

Autori
Lučić, Mavro ; Mikac, Nevenka ; Bačić, Niko ; Vdović, Neda

Vrsta, podvrsta
Radovi u časopisima, ostalo

Izvornik
Journal of hydrology (2020)

Status rada
Prihvaćen

Ključne riječi
Geochemical composition Hydrodynamic sorting Time-integrated sampler The Sava River catchment

Sažetak
The suspended particulate matter (SPM) carried by the rivers shows a wide range of particle size classes, mineralogical and chemical compositions and is mainly influenced by hydrodynamic sorting and provenance during the transport. Here, we have investigated the composition of the SPM in the Sava River and its tributaries (Ljubljanica, Savinja and Krapina) using a time-integrated suspended sediment sampler (TIMS). The representativeness of material collected by TIMS was evaluated comparing fine- grained sediments, single-point SPM and SPM collected using a shallow and deep-positioned sampler. The main results have revealed that the mineralogical and geochemical composition of the material is largely dependent on hydrological conditions. The differentiation of element composition is especially emphasized at low water stage when most of the SPM consists of slow-settling mineral phases (clay minerals and metal oxyhydroxides) which can be trapped in the sampler. During periods of high discharges, differentiation is less prominent, and homogenization of the SPM occurs, mainly as a part of bed load is also taken into suspension. These conditions have proven unfavorable for sampler efficiency, as at least part of the finest particles could not be retained. Additional issues that may occur during TIMS employment relate to biologically driven carbonate precipitation, which is triggered by changes in physicochemical conditions at low water table in the summer period. Increased concentration of Ca, related to that process, influences the elemental composition of the SPM, which is particularly important when anthropogenic impact or sediment source is assessed. Hence, in order to interpret the geochemical and mineralogical data collected by TIMS, these factors should be taken into account. Our findings emphasize the need for detailed studies of chemical composition of the SPM (time- integrated) in medium-sized rivers and point out the significance of evaluating sampling representativeness during different hydrological conditions.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti



POVEZANOST RADA


Projekti:
IP-2013-11-7555 - Transport i kemodinamika elemenata u tragovima u slatkovodnim i priobalnim sedimentacijskim sustavima (TRACESS) (Kniewald, Goran, HRZZ - 2013-11) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Neda Vdović (autor)

Avatar Url Mavro Lučić (autor)

Avatar Url Nevenka Mikac (autor)

Avatar Url Niko Bačić (autor)

Citiraj ovu publikaciju

Lučić, Mavro; Mikac, Nevenka; Bačić, Niko; Vdović, Neda
Appraisal of geochemical composition and hydrodynamic sorting of the river suspended material: Application of time-integrated suspended sediment sampler in a medium-sized river (the Sava River catchment) // Journal of hydrology (2020) doi:10.1016/j.jhydrol.2020.125768 (ostalo, prihvaćen)
Lučić, M., Mikac, N., Bačić, N. & Vdović, N. (2020) Appraisal of geochemical composition and hydrodynamic sorting of the river suspended material: Application of time-integrated suspended sediment sampler in a medium-sized river (the Sava River catchment). Prihvaćen za objavljivanje u Journal of hydrology. [Preprint] doi:10.1016/j.jhydrol.2020.125768.
@unknown{unknown, year = {2020}, DOI = {10.1016/j.jhydrol.2020.125768}, keywords = {Geochemical composition Hydrodynamic sorting Time-integrated sampler The Sava River catchment}, journal = {Journal of hydrology}, doi = {10.1016/j.jhydrol.2020.125768}, title = {Appraisal of geochemical composition and hydrodynamic sorting of the river suspended material: Application of time-integrated suspended sediment sampler in a medium-sized river (the Sava River catchment)}, keyword = {Geochemical composition Hydrodynamic sorting Time-integrated sampler The Sava River catchment} }
@unknown{unknown, year = {2020}, DOI = {10.1016/j.jhydrol.2020.125768}, keywords = {Geochemical composition Hydrodynamic sorting Time-integrated sampler The Sava River catchment}, journal = {Journal of hydrology}, doi = {10.1016/j.jhydrol.2020.125768}, title = {Appraisal of geochemical composition and hydrodynamic sorting of the river suspended material: Application of time-integrated suspended sediment sampler in a medium-sized river (the Sava River catchment)}, keyword = {Geochemical composition Hydrodynamic sorting Time-integrated sampler The Sava River catchment} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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