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Modeling Chloride Retention in Boreal Forest Soils - synergy of input treatments and microbial biomass
Linköping University, The Tema Institute, Department of Water and Environmental Studies.
2007 (English)Independent thesis Advanced level (degree of Magister), 20 points / 30 hpStudent thesis
Abstract [en]

The hypothetical assumption that chloride is conservative in the soil has been debated for the last decade. The results of the recent years of study in chlorine biogeochemistry show that chloride is non-conservative but rather participates in complex biogeochemical reactions in the soil. These interactions in nature inform the development of simplified hydrochemical model of chloride dynamics in the soil that is driven on soil routine component of HBV hydrological model. This novel attempt affords the opportunity to explore chlorine biogeochemistry further by evaluating the biological processes such as microbial biomass that predominate chlorine cycles in the same order of magnitude as earlier studied abiotic factors. Data from soil lysimeter experiment with different inputs treatments were used in the calibration and validation of both the hydrological and biogeochemical model. The results show that (1) model efficiency reduces with decreasing water residence and with increasing soil organic matter. (2) Longer water residence time (low water input), high chloride and high nitrogen input loads relatively enhance maximum biomass accumulation in a shorter time span. (3) Chloride retention time reduces with increasing chloride loads under short water residence. (4) Microbial biomass growth rate is highest under high chloride input treatments. (5) Biomass death rates shows reducing trend under short water residence (High water input). Further researches are therefore suggested for possible model expansion and to make the results of this model plausible under field conditions.

Place, publisher, year, edition, pages
Tema vatten i natur och samhälle , 2007. , 40 p.
Keyword [en]
Biogeochemical model, Chlorine biogeochemistry, Chlorine cycles, Chloride immobilization, Microbial Biomass, Water residence time
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:liu:diva-9312ISRN: LIU-TEMA/ES/D-07/04-SEOAI: oai:DiVA.org:liu-9312DiVA: diva2:23854
Presentation
2007-06-01, FAROS, T Building, TEMA vatten, Linköping University, Campus Valla, 09:15
Uppsok
fysik/kemi/matematik
Supervisors
Examiners
Available from: 2007-06-26 Created: 2007-06-26

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3889657cb5edabf02e07d45cc698071fd90c61d7241542633d0595561e7956ac0b30951e
Type fulltextMimetype application/pdf

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Department of Water and Environmental Studies
Environmental Sciences

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • asciidoc
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