Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia:
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1. Verfasser: | |
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Format: | Abschlussarbeit Elektronisch E-Book |
Sprache: | English |
Veröffentlicht: |
Hamburg
Verein zur Förderung der Bodenkunde in Hamburg
2013
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Schriftenreihe: | Hamburger bodenkundliche Arbeiten
72 |
Schlagworte: | |
Online-Zugang: | Inhaltsverzeichnis |
Beschreibung: | Zsfassung in dt. Sprache |
Beschreibung: | XVII, 200 S. |
Internformat
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245 | 1 | 0 | |a Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia |c vorgelegt von Armine Avagyan |
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TABLE OF CONTENTS
TABLE OF CONTENTS I
I SUMMARY AND STRUCTURE IV
II ZUSAMMENFASSUNG VII
III ACKNOWLEDGMENTS X
IV LIST OF FIGURES XI
V LIST OF TABLES XIV
VI ABBREVIATIONS AND SYMBOLS XVI
VII DEFINITIONS XVII
1 INTRODUCTION I
2 STATE-OF-THE-ART 8
2.1 PEATLANDS AND MIRES 8
2.1.1 GENERAL CHARACTERISTICS 8
2.1.2 PEATLAND STRUCTURE: ACROTELM AND CATOTELM 8
2.1.3 PEATLAND TYPES 9
2.1.4 PEATLANDS AND CLIMATE CHANGE 9
2.2 DISSOLVED ORGANIC MATTER (DOM) 12
2.2.1 OPERATIONAL DEFINITION AND ORIGIN OF DOM 12
2.2.2 IMPORTANCE OF DOM 12
2.2.3 STRUCTURE OF DOM 13
2.2.4 CURRENT LEVEL OF KNOWLEDGE ON DOM DYNAMICS 15
2.2.5 QUALITATIVE AND QUANTITATIVE CHARACTERIZATION OF DOM 18
3 STUDY SITE 24
3.1 GEOGRAPHIC LOCATION 24
3.2 LANDFORM PATTERNS AND HYDROLOGIC GRADIENTS 24
3.3 CLIMATE DATA 26
3.4 GEOLOGY AND SOIL DESCRIPTION 27
3.5 VEGETATION 28
3.6 PEATLAND UTILIZATION IN THE KOMI REPUBLIC 30
4 APPLICATION OF HIGH-RESOLUTION SPECTRAL ABSORBANCE MEASUREMENTS FOR
THE DETERMINATION
OF THE DISSOLVED ORGANIC CARBON CONTENTS OF SURFACE AND SOIL-PORE WATERS
IN REMOTE AREAS 32
4.1 ABSTRACT 32
4.2 INTRODUCTION 33
4.3 MATERIALS AND METHODS 36
4.3.1 STUDY SITE 36
4.3.2 SAMPLING AND FILTRATION 36
I
HTTP://D-NB.INFO/1044946512
4.3.3 HIGH-RESOLUTION SPECTROSCOPIC MEASUREMENTS USING A PORTABLE UV-VIS
PROBE. 36
4.3.4 ASSESSMENT OF A PORTABLE UV-VIS SPECTROPHOTOMETER'S PERFORMANCE
FOR DOC-
CONTENT ESTIMATION 37
4.3.5 DETERMINATION OF DOC CONCENTRATION FROM ABSORBANCE VALUES 39
4.3.6 COMPARISON OF DOC-MEASUREMENT METHODS 41
4.3.7 EVALUATION OF DOC STABILITY AFTER A STORAGE PERIOD 41
4.4 RESULTS 43
4.4.1 ASSESSMENT OF THE PERFORMANCE OF A PORTABLE UV-VIS
SPECTROPHOTOMETER 43
4.4.2 METHODS COMPARISON 44
4.4.3 INFLUENCE OF STORAGE ON QUALITATIVE AND QUANTITATIVE DOC
CHARACTERISTICS 45
4.4.4 COMPARISON OF MULTILINEAR CALIBRATION MODELS 46
4.5 DISCUSSION 49
4.5.1 LOCAL CALIBRATION AND DOC DISCRIMINATION CAPABILITY OF THE
SPECTRA: RLYSER 49
4.5.2 METHODS COMPARISON 51
4.5.3 DIFFERENT MULTILINEAR CALIBRATION METHODS 53
4.5.4 MULTIPLE STEPWISE REGRESSION RESULTS FOR DIFFERENT SUB-SETS 54
4.6 CONCLUSIONS 57
5 BIOGEOCHEMICAL GRADIENTS AND DISSOLVED ORGANIC CARBON VARIABILITY IN A
COMPLEX
PEATLAND LANDSCAPE IN NORTHWEST RUSSIA 58
5.1 ABSTRACT 58
5.2 INTRODUCTION 59
5.3 MATERIALS AND METHODS 62
5.3.1 STUDY SITE 62
5.3.2 SAMPLING AND FIELD MEASUREMENTS 62
5.3.3 CHEMICAL ANALYSIS 63
5.3.4 DATA ANALYSES 64
5.4 RESULTS 66
5.4.1 PH AND TEMPERATURE 66
5.4.2 DYNAMICS OF DISSOLVED ORGANIC CARBON 66
5.4.3 MACRO AND MICROELEMENTS 67
5.5 DISCUSSION 74
5.5.1 DISSOLVED ORGANIC CARBON (DOC) 74
5.5.2 WATER-CHEMICAL GRADIENTS: PH, MACROELEMENTS, AND MICROELEMENTS 79
5.5.3 FLOW-PATH TRACING 82
5.6 CONCLUSIONS 84
5.7 APPENDIX 85
6 DISSOLVED ORGANIC CARBON FLUXES DURING THE SPRING SNOWMELT AND THE
SUBSEQUENT
BASEFLOW PERIOD IN A MIRE-FOREST LANDSCAPE IN THE KOMI REPUBLIC,
NORTHWEST RUSSIA 87
6.1 ABSTRACT -.87
6.2 INTRODUCTION 88
6.3 MATERIALS AND METHODS 92
6.3.1 STUDY SITE 92
6.3.2 ENVIRONMENTAL CONDITIONS DURING SAMPLING PERIOD 92
6.3.3 SAMPLING 95
6.3.4 QUALITATIVE AND QUANTITATIVE ANALYSES OF DISSOLVED ORGANIC CARBON
97
6.3.5 LATERAL CARBON EXPORT MEASUREMENTS 98
II
6.3.6 DATA ANALYSIS 99
6.4 RESULTS 100
6.4.1 SPATIO-TEMPORAL VARIABILITY IN ORGANIC CARBON CONCENTRATIONS 100
6.4.2 VARIABILITY IN THE QUALITY INDICATORS OF DISSOLVED ORGANIC MATTER
103
6.4.3 MICRO- AND MACRO-ELEMENTS 106
6.5 DISCUSSION 111
6.5.1 SAMPLING METHODOLOGY 111
6.5.2 DOC VARIABILITY AND LOSS 111
6.5.3 HYDROLOGICAL FLOWPATHS 114
6.5.4 SNOWMELT HYDROLOGY 116
6.5.5 MICRO- AND MACRO-ELEMENTS 117
6.6 CONCLUSIONS 118
6.7 APPENDIX 119
7 CHARACTERIZATION OF TRULY DISSOLVED AND COLLOIDAL MATTER IN A BOREAL
MIRE-FOREST-RIVER
SYSTEM IN THE KOMI REPUBLIC, RUSSIAN FEDERATION 122
7.1 ABSTRACT 122
7.2 INTRODUCTION 124
7.3 MATERIALS AND METHODS 129
7.3.1 STUDY SITE 129
7.3.2 SAMPLING 129
7.3.3 FILTRATION 129
7.3.4 DISSOLVED ORGANIC CARBON AND DISSOLVED NITROGEN CONTENT
DETERMINATION 131
7.3.5 STABLE CARBON ISOTOPES (8
I3
C) ANALYSES 131
7.3.6 ABSORPTION MEASUREMENTS 132
7.3.7 INORGANIC CHEMICAL SPECIES ANALYSES 132
7.3.8 STATISTICAL ANALYSES 133
7.4 RESULTS 134
7.4.1 PROPORTION OF DIFFERENT ORGANIC CARBON SIZE FRACTIONS 134
7.4.2 STABLE CARBON ISOTOPE (8
1
^) SIGNATURES 138
7.4.3 DOC/DN 142
7.4.4 SPECTROPHOTOMETRY MEASUREMENTS OF DIFFERENT SIZE FRACTIONS 143
7.4.5 INORGANIC SPECIES DIFFERENTIATION IN THE DIFFERENT SIZE FRACTIONS
145
7.5 DISCUSSION 148
7.5.1 PROPORTION AND DYNAMICS OF THE DIFFERENT ORGANIC CARBON SIZE
FRACTIONS 148
7.5.2 STABLE CARBON 8
L3
C ISOPTOPE SIGNATURE AND DOC/DN RATIO 154
7.5.3 SPECTROPHOTOMETRY ABSORBANCE MEASUREMENTS 156
7.5.4 INORGANIC SPECIES SPECIATION IN DIFFERENT SIZE FRACTIONS 157
7.6 CONCLUSIONS 159
7.7 APPENDIX 161
8 SYNTHESIS OF MAJOR FINDINGS AND RECOMMENDATIONS FOR FURTHER STUDIES
164
9 REFERENCES 169
A AUTHOR'S CONTRIBUTION 200
III |
any_adam_object | 1 |
author | Avagyan, Armine |
author_facet | Avagyan, Armine |
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dewey-search | 577.683094743 |
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spelling | Avagyan, Armine Verfasser aut Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia vorgelegt von Armine Avagyan Hamburg Verein zur Förderung der Bodenkunde in Hamburg 2013 XVII, 200 S. txt rdacontent c rdamedia cr rdacarrier Hamburger bodenkundliche Arbeiten 72 Zsfassung in dt. Sprache Dissertation Universität Hamburg 2013 Bodenmikrobiologie (DE-588)4659394-9 gnd rswk-swf Bodenökologie (DE-588)4332816-7 gnd rswk-swf Russland Nordwest (DE-588)4405169-4 gnd rswk-swf Autonome Republik Komi (DE-588)4096743-8 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Russland Nordwest (DE-588)4405169-4 g Autonome Republik Komi (DE-588)4096743-8 g Bodenökologie (DE-588)4332816-7 s Bodenmikrobiologie (DE-588)4659394-9 s DE-604 Hamburger bodenkundliche Arbeiten 72 (DE-604)BV000019547 72 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026854979&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
spellingShingle | Avagyan, Armine Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia Hamburger bodenkundliche Arbeiten Bodenmikrobiologie (DE-588)4659394-9 gnd Bodenökologie (DE-588)4332816-7 gnd |
subject_GND | (DE-588)4659394-9 (DE-588)4332816-7 (DE-588)4405169-4 (DE-588)4096743-8 (DE-588)4113937-9 |
title | Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia |
title_auth | Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia |
title_exact_search | Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia |
title_full | Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia vorgelegt von Armine Avagyan |
title_fullStr | Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia vorgelegt von Armine Avagyan |
title_full_unstemmed | Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia vorgelegt von Armine Avagyan |
title_short | Spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire-forest landscapes in the Komi Republic, Northwest-Russia |
title_sort | spatial variability and seasonal dynamics of dissolved organic matter in surface and soil pore waters in mire forest landscapes in the komi republic northwest russia |
topic | Bodenmikrobiologie (DE-588)4659394-9 gnd Bodenökologie (DE-588)4332816-7 gnd |
topic_facet | Bodenmikrobiologie Bodenökologie Russland Nordwest Autonome Republik Komi Hochschulschrift |
url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026854979&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
volume_link | (DE-604)BV000019547 |
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