Procjena tijeka iona iz atmosferskih oborina u nizinski šumski ekosustav hrvatske prema metodologiji UN-ECE ICP forests

doctoral thesis

• Title (english): Assessing the fluxes of ions from atmosphere to the lowland forest ecosystem of croatia following the UN-ECE ICP forests methodologies
• Author: Tamara Jakovljević; MBZ: 311200
• Mentor: Katarina Berković (mentor); MBZ: 71486
• Committee member: Jasna Vorkapić-Furač (predsjednik povjerenstva); MBZ: 53001
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; Zagreb
• Defense date and country: 2010-03-05, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology
• Universal decimal classification (UDC): 577 - Biochemistry. Molecular biology. Biophysics

Abstract

U ovom radu koristeći metodologiju međunarodnog ICP Forests programa određen je godišnji unos i uzajaman odnos iona prispjelih iz atmosfere u nizinski šumski ekosustav hrasta lužnjaka i običnog graba na ICP plohi u Jastrebarskim lugovima.Validacija rezultata obuhvaćala je provjeru ionske bilance, usporedbu izmjerene i izračunate provodljivosti, odnos natrijevih i kloridnih iona, usporedbu provodljivosti i sume kationa te provodljivosti i sume aniona. Istraživanje je obuhvatilo i analizu odnosa među ionima, razlike zbog različitih vrsta uzoraka, količinu iona prispjelih na plohu, sezonske varijacije kiselih komponenata, usporedbu aktualnog i kritičnog unosa i usporedbu s prethodnim rezultatima dobivenim na ostalim europskim plohama. Rezultati su pokazali da na kemijski sastav uzoraka dobivenih mokrim taloženjem jako je izražen utjecaj okoline, utjecaj morske vode (Na+, Cl-, Mg2+, dio sulfata) i prašina tla, koja sadrži ione (Ca2+, Mg2+, K+, sulfati) lokalnog porijekla. Koncentracija iona u uzorcima dobivenim prokapljivanjem je veća nego u uzorcima dobivenimn mokrim taloženjem zbog međudjelovanja oborina i vegetacije. Porast se odnosi na većinu iona osim iona kalcija i magnezija. Godišnji unos kiselih i dušikovih komponenata pokazuje manje vrijednosti od kritičnih za obje vrste uzoraka.

Abstract (english)

In this work, following the ICP Forests methodology the flux of ions from atmosphere and the relationship between them in lowland forest of Quercus robur L. and Carpinus betulus L. in ICP plot Jastrebarski lugovi on yearly basis were investigeted. The validation of analytical results have included: checks of ion balance, comparation between measured and calculated conductivity, ratio between Na+ and Cl-, comparation between conductivity values and the sum of cations and between conductivity values and the sum of anions. The following criteria have been investigated:comparison between relationships among ions, difference among different samples typology, flux of ions in plot, seasonal variations of acidifying compounds, comparation between actual and critical loads and comparation with previous results obtained in Europe in order to assess the condition of lowland forest of Croatia. The results showed that the chemistry of bulk deposition was strongly influenced by natural sources, such as sea water component (Na+, Cl-, Mg2+, part of sulphate) and soil dust that contains (Ca2+, Mg2+, K+, sulphate) of local origine. The ionic concentrations were higher in throughfall than the respectative bulk values due to the interaction of rain water with vegetation. The increase involved the main ions, with the exception of calcium and magnesium. The actual loads of acidifying and nitrogen compounds showed much lower values than the critical load for both type of samples.

• Keywords: atmosferska taloženja; godišnji unos iona; hrast lužnjak; ICP Forests; kritičan unos; mokro taloženje; nizinski šumski ekosustav; običan grab; prokapljivanje
• Keywords (english): atmosferic deposition; actual load; Carpinus betulus L.; ICP Forests; bulk open field; throughfall; Quercus robur L.
• Language: croatian
• URN:NBN: urn:nbn:hr:159:997275
• Promotion: 2010-07-04
• Study programme: Title: Postgraduate PhD Study in Biotechnology and Bioprocess Engineering; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti (doktor/doktorica znanosti)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2018-05-15 10:00:36