Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems:
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
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Hamburg
2017
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| Schriftenreihe: | Hamburger bodenkundliche Arbeiten
Band 83 |
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| Beschreibung: | Text englisch, Zusammenfassung in deutscher und englischer Sprache |
| Beschreibung: | XXII, 166 Seiten Illustrationen |
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| 245 | 1 | 0 | |a Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems |c vorgelegt von Christoph Geck aus Hamburg |
| 264 | 1 | |a Hamburg |c 2017 | |
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Datensatz im Suchindex
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Titel: Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas flux
Autor: Geck, Christoph
Jahr: 2017
Contents _XIII
Contents
Acknowledgements.Ill
Summary.V
Zusammenfassung.IX
Contents.XIII
List of figures.XVII
List of tables.XXI
List of abbreviations.XXII
1 Introduction.1
2 State of knowledge.5
2.1 Preferential gas flow in landfill cover soils.5
2.1.1 Soil gas transport.7
2.1.2 Methane oxidation systems.11
3 Description of study sites.25
3.1 Landfill K.25
3.2 Landfill Wieringermeer.25
3.3 Landfill Eckerkoppel.27
3.4 Soil observation area Amsinckpark.27
4 Material and methods.29
4.1 Gas transport parameters.29
4.1.1 Sample preparation.29
4.1.2 Determination of effective diffusion coefficient.30
4.1.3 Determination of gas permeability coefficient.32
4.2 Surface gas concentration.33
4.2.1 Hotspot 13 on Landfill K.33
4.2.2 Wieringermeer test field.34
4.3 Soil gas concentration.34
4.3.1 Soil gas probes and measurement.34
4.3.2 Gas probe setup at Landfill K.35
XIV Contents
4.3.3 Gas probe setup at Wieringermeer test field.35
4.4 Soil excavation and laboratory analyses of Landfill K.35
4.5 Emission measurement - Large chamber.36
4.5.1 Design and operation of the large static chamber.36
4.5.2 Sampling strategy for emission measurement.38
4.6 Calculation of the methane oxidation efficiency, oxidation rates and base fluxes. 39
4.7 Introduction to the Methane Oxidation Tool (MOT).40
4.8 Data processing and statistics.42
5 Results.43
5.1 Gas diffusivity and permeability of landfill cover soils at low water tensions.43
5.1.1 Structures of pore space.43
5.1.2 Variability of diffusive properties with changing moisture.45
5.1.3 Variability of advective properties with changing soil moisture.50
5.1.4 Relation of diffusive and advective gas permeability.54
5.1.5 Resulting fluxes.55
5.2 Soil gas composition patterns, morphology and properties of a Reduktosol
formed in a landfill soil cover due to preferential escape of gas.60
5.2.1 Methane surface concentration and soil gas phase.60
5.2.2 Soil properties.62
5.3 Spatial and temporal variability of methane emissions, oxidation efficiencies and
oxidation rates of a methane oxidation cover test field.75
5.3.1 Evaluation of the large chamber method.75
5.3.2 Environmental conditions over the study time.78
5.3.3 Soil gas phase.80
5.3.4 Methane emissions, oxidation efficiencies and rates from methane mass
balance and carbon shift method for the whole test field.96
5.3.5 Spatial and temporal variability of methane emissions, oxidation efficiencies
and rates on grid field scale.99
5.3.6 Oxidation efficiencies for different soil depths.105
5.3.7 Oxidation rates as predicted by the MOT.109
5.3.8 Model predictions and measurements - resolving the test field to grid field
scale.109
Contents
XV
6 Discussion.113
6.1 Relevance of pore size distribution for gas transport in differently saturated soil
samples at low water tensions.113
6.1.1 Influence of changing air-filled pore space on gas transport.113
6.1.2 Influence of water content on emissive fluxes.119
6.2 Emission hotspots - Prerequisites for hotspot formation and response of soil to
methane point sources on an old landfill.122
6.3 Spatial and temporal variability of methane emissions, oxidation efficiencies,
oxidation rates and soil gas concentrations of a methane oxidation cover test
field.126
6.3.1 Consideration of methodological errors.126
6.3.2 Assessment of oxidation efficiency and rates.127
6.3.3 Effect of MOS constructional features on gas fluxes.129
6.3.4 Temporal and spatial pattern of methane concentrations and fluxes.132
6.3.5 Comparison of the variability of the landfill sites and natural soils.136
6.3.6 Applicability of the MOT.137
6.4 Relating findings from laboratory and field data.139
7 Conclusions.141
Publication list.145
References.147
Appendix.161 |
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| spelling | Geck, Christoph Verfasser (DE-588)1139648306 aut Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems vorgelegt von Christoph Geck aus Hamburg Hamburg 2017 XXII, 166 Seiten Illustrationen txt rdacontent n rdamedia nc rdacarrier Hamburger bodenkundliche Arbeiten Band 83 Text englisch, Zusammenfassung in deutscher und englischer Sprache Dissertation Universität Hamburg 2017 Gasemission (DE-588)4513491-1 gnd rswk-swf Bodenatmung (DE-588)4389796-4 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Bodenatmung (DE-588)4389796-4 s Gasemission (DE-588)4513491-1 s DE-604 Hamburger bodenkundliche Arbeiten Band 83 (DE-604)BV000019547 83 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029891140&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Geck, Christoph Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems Hamburger bodenkundliche Arbeiten Gasemission (DE-588)4513491-1 gnd Bodenatmung (DE-588)4389796-4 gnd |
| subject_GND | (DE-588)4513491-1 (DE-588)4389796-4 (DE-588)4113937-9 |
| title | Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems |
| title_auth | Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems |
| title_exact_search | Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems |
| title_full | Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems vorgelegt von Christoph Geck aus Hamburg |
| title_fullStr | Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems vorgelegt von Christoph Geck aus Hamburg |
| title_full_unstemmed | Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems vorgelegt von Christoph Geck aus Hamburg |
| title_short | Temporal and spatial variability of soil gas transport parameters, soil gas composition and gas fluxes in methane oxidation systems |
| title_sort | temporal and spatial variability of soil gas transport parameters soil gas composition and gas fluxes in methane oxidation systems |
| topic | Gasemission (DE-588)4513491-1 gnd Bodenatmung (DE-588)4389796-4 gnd |
| topic_facet | Gasemission Bodenatmung Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029891140&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV000019547 |
| work_keys_str_mv | AT geckchristoph temporalandspatialvariabilityofsoilgastransportparameterssoilgascompositionandgasfluxesinmethaneoxidationsystems |