Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Hamburg
2017
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| Schriftenreihe: | Hamburger Bodenkundliche Arbeiten
Band 84 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Literaturverzeichnis: Seite 117-130 |
| Beschreibung: | XVIII, 130 Seiten Illustrationen, Diagramme |
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Datensatz im Suchindex
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Titel: Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Nort
Autor: Vybornova, Olga
Jahr: 2017
Table of Contents
List of Figures.VII
List of Tables.X
List of Abbreviations and Symbols.XI
Definitions.XII
Summary.XIII
Zusammenfassung.XV
Acknowledgments.XVII
1 Introduction and objectives.1
2 Background.5
2.1 The importance of peatland ecosystems in the global C and N cycle.5
2.2 Greenhouse gas exchange in peatlands.7
2.2.1 Carbon dioxide (CO2).7
2.2.2 Methane (CH4).8
2.2.3 Nitrous oxide (N2O).10
2.3 Peatland drainage and climate change.12
2.4 Peatland rewetting.13
3 Materials and methods.15
3.1 Study site.15
3.1.1 Climatic and geological description.15
3.1.2 Anthropogenic activity and current projects.16
3.2 Sampling sites.17
3.3 Vegetation analysis.19
3.4 Instrumentation and environmental measurements.20
3.5 Gas flux measurements.20
3.5.1 Gas sampling.20
3.5.2 Gas analysis.22
3.5.3 Flux calculation.23
3.5.4 Data processing and correction.25
3.5.5 Calculation of annual GHG fluxes.25
3.6 Soil surveying, sampling and storage.25
3.7 Soil physical and chemical analyses.26
3.7.1 Total carbon and nitrogen content.26
III
3.7.2 Soil pH and electrical conductivity.26
3.7.3 Contents ofplant-available potassium and phosphorus.26
3.7.4 Water and organic matter content and water holding capacity.27
3.7.5 Bulk density.27
3.7.6 Content of ammonium, nitrate and nitrite.28
3.7.7 Microbial biomass.28
3.8 Soil incubation experiments.29
3.8.1 Soil sampling.29
3.8.2 Soil solution sampling and extraction.30
3.8.3 Aerobic and anaerobic samples preparation and experimental setup.31
3.8.4 Physical and chemical analyses of the incubation material.34
3.8.5 Measurement of gas production.34
3.8.6 Calculation of gas production.35
3.8.7 Data processing and correction.36
3.9 Statistical analysis.36
4 Results.37
4.1 Environmental conditions.37
4.1.1 Meteorological conditions.37
4.1.2 Soil redox potential.40
4.1.3 Water table level.42
4.1.4 Vegetation characteristics.44
4.2 Soil characteristics and classification.47
4.2.1 Soil morphology and soil profdes.47
4.2.2 Soil-physical and -chemicalproperties.53
4.3 Gas fluxes.58
4.3.1 Residual analyses and flux estimates.58
4.3.2 Carbon dioxide (CO2).59
4.3.3 Methane (CH4).64
4.3.4 Nitrous oxide (N2O).69
4.3.5 Effect of soil and climatic conditions on GHG fluxes.73
4.3.6 Correlation of the N2O and CO2 fluxes.78
4.3.7 Annua! GHG emissions.79
4.4 Incubation experiments.82
IV
4.4.1 Physical-chemical characteristics of the incubation material.82
4.4.2 Aerobic and anaerobic C mineralization: gas production potentials.86
4.4.3 Effect of treatments with added sterile and non-sterile soil solution filtrates on COi
and CHt production of samples from different depths at Site E.90
4.4.4 The effect of drying and rewetting on aerobe CO2 production from Site E.95
5 Discussion.97
5.1 Effect of rewetting on soil properties.97
5.2 Temporal and spatial variation in GHG fluxes.98
5.2.1 Carbon dioxide and methane.98
5.2.2 Nitrous oxide (N2O).103
5.2.3 Controls on GHG fluxes.105
5.3 GHG production potentials from peat soils at the extraction and rewetted areas.106
5.3.1 Production potentials of carbon dioxide.106
5.3.2 Production potentials of methane.109
5.4 Estimation of annual GHG fluxes for the Himmelmoor and global peatlands.111
6 Conclusions and recommendations.115
References.117
V |
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| spelling | Vybornova, Olga 1989- Verfasser (DE-588)1139649116 aut Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany vorgelegt von Olga Vybornova aus Sankt-Petersburg in Russland Hamburg 2017 XVIII, 130 Seiten Illustrationen, Diagramme txt rdacontent n rdamedia nc rdacarrier Hamburger Bodenkundliche Arbeiten Band 84 Literaturverzeichnis: Seite 117-130 Dissertation Universität Hamburg 2017 Text englisch, Zusammenfassung in deutscher und englischer Sprache Gasemission (DE-588)4513491-1 gnd rswk-swf Moorboden (DE-588)4170520-8 gnd rswk-swf Wiedervernässung (DE-588)4529395-8 gnd rswk-swf Treibhausgas (DE-588)4438735-0 gnd rswk-swf Kohlenstoff (DE-588)4164538-8 gnd rswk-swf Moor (DE-588)4040195-9 gnd rswk-swf Norddeutschland (DE-588)4075454-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Moor (DE-588)4040195-9 s Moorboden (DE-588)4170520-8 s Kohlenstoff (DE-588)4164538-8 s Wiedervernässung (DE-588)4529395-8 s DE-604 Norddeutschland (DE-588)4075454-6 g Treibhausgas (DE-588)4438735-0 s Gasemission (DE-588)4513491-1 s Hamburger Bodenkundliche Arbeiten Band 84 (DE-604)BV000019547 84 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029891093&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Vybornova, Olga 1989- Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany Hamburger Bodenkundliche Arbeiten Gasemission (DE-588)4513491-1 gnd Moorboden (DE-588)4170520-8 gnd Wiedervernässung (DE-588)4529395-8 gnd Treibhausgas (DE-588)4438735-0 gnd Kohlenstoff (DE-588)4164538-8 gnd Moor (DE-588)4040195-9 gnd |
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| title | Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany |
| title_auth | Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany |
| title_exact_search | Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany |
| title_full | Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany vorgelegt von Olga Vybornova aus Sankt-Petersburg in Russland |
| title_fullStr | Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany vorgelegt von Olga Vybornova aus Sankt-Petersburg in Russland |
| title_full_unstemmed | Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany vorgelegt von Olga Vybornova aus Sankt-Petersburg in Russland |
| title_short | Effect of re-wetting on greenhouse gas emissions from different microtopes in a cut-over bog in Northern Germany |
| title_sort | effect of re wetting on greenhouse gas emissions from different microtopes in a cut over bog in northern germany |
| topic | Gasemission (DE-588)4513491-1 gnd Moorboden (DE-588)4170520-8 gnd Wiedervernässung (DE-588)4529395-8 gnd Treibhausgas (DE-588)4438735-0 gnd Kohlenstoff (DE-588)4164538-8 gnd Moor (DE-588)4040195-9 gnd |
| topic_facet | Gasemission Moorboden Wiedervernässung Treibhausgas Kohlenstoff Moor Norddeutschland Hochschulschrift |
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