Forest soil organic matter: structure and formation
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | Undetermined |
| Veröffentlicht: |
Bayreuth
Lehrstuhl für Bodenkunde und Bodengeographie der Univ. Bayreuth
1992
|
| Schriftenreihe: | Bayreuther bodenkundliche Berichte
24 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 103 S. graph. Darst. |
Internformat
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Datensatz im Suchindex
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|---|---|
| adam_text |
TABLE OF CONTENTS
Introduction
Conceptual framework
I organic matter
4
Hutnic substances and soil organic matter
Humification
Methodological approach
Fractionation
Analytical techniques
Genesis of forest humus layers 11
The humus profile
Composition and distribution of litter in forest soils 12
Primary resources
Secondary resources
Biodegradation of major compound classes in litter
Materials and methods 17
Samples 17
C,N, and pH determination 17
Extraction of humic acids
Selective enrichment of samples with resistant alkyl carbon 2°
Chemical degradative analyses
CuO oxidation of lignin 21
Determination of cutin acids
Hydrolysis and determination ot carbohydrates 23
CPMAS 13C NMR spectroscopy 24
Analytical pyrotysis
The soil organic matter - humic substances link 27
Humus fractionation 27
Compositional changes in the bulk humus profiles 27
Distribution of carbon in humus fractions
29
Lignin and carbohydrates in humus fractions 31
CPMAS 13C NMR of the humic acid fraction w
Conclusions ^
Humification of lignin 39
Sources of aromatic carbon in soils 39
Overall composition and yield of humic acids 40
Aromatic carbon in litter humic acids 43
Aromatic carbon in humic acids from humus layers and mineral soils 45
Dipolar dephasing 13C NMR of humic acids 47
Conclusions 54
Humification of aliphatic biomacromolecules 55
Sources of alkyl carbon in soils 55
Cutin and suberin 57
Rigid and mobile carbon structures 60
Residue yields and composition BO
Alkyl carbon in litter samples 64
Alkyl carbon in forest floor and mineral soil horizons 65
Alkyl carbon in microbial residues 66
Molecular level characterization of alkyl carbon 69
Conclusions 72
Synthesis: Humification in forest soils 74
Humification processes 74
Individual plant and microbial constituents 76
Pofysaccharides 76
Aromatic compounds 76
Cutin, suberin, and other aliphatic biomacromolecules 78
Conclusions 79
Summary 82
Zusammenfassung 87
References 93
Acknowledgements 103 |
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| author | Kögel-Knabner, Ingrid 1958- |
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| classification_tum | LAN 117f GEO 315f |
| ctrlnum | (OCoLC)231342302 (DE-599)BVBBV005429281 |
| discipline | Geowissenschaften Agrarwissenschaft Agrar-/Forst-/Ernährungs-/Haushaltswissenschaft / Gartenbau Pflanzenbau Geographie |
| format | Book |
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| illustrated | Illustrated |
| indexdate | 2024-08-23T00:10:22Z |
| institution | BVB |
| language | Undetermined |
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| physical | 103 S. graph. Darst. |
| publishDate | 1992 |
| publishDateSearch | 1992 |
| publishDateSort | 1992 |
| publisher | Lehrstuhl für Bodenkunde und Bodengeographie der Univ. Bayreuth |
| record_format | marc |
| series | Bayreuther bodenkundliche Berichte |
| series2 | Bayreuther bodenkundliche Berichte |
| spelling | Kögel-Knabner, Ingrid 1958- Verfasser (DE-588)123318653 aut Forest soil organic matter structure and formation Ingrid Kögel-Knabner Bayreuth Lehrstuhl für Bodenkunde und Bodengeographie der Univ. Bayreuth 1992 103 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Bayreuther bodenkundliche Berichte 24 Huminstoff (DE-588)4026165-7 gnd rswk-swf Humifizierung (DE-588)4298536-5 gnd rswk-swf Waldhumus (DE-588)4461766-5 gnd rswk-swf Waldboden (DE-588)4132325-7 gnd rswk-swf Waldhumus (DE-588)4461766-5 s DE-604 Waldboden (DE-588)4132325-7 s Humifizierung (DE-588)4298536-5 s Huminstoff (DE-588)4026165-7 s Bayreuther bodenkundliche Berichte 24 (DE-604)BV049679111 24 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=003394463&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Kögel-Knabner, Ingrid 1958- Forest soil organic matter structure and formation Bayreuther bodenkundliche Berichte Huminstoff (DE-588)4026165-7 gnd Humifizierung (DE-588)4298536-5 gnd Waldhumus (DE-588)4461766-5 gnd Waldboden (DE-588)4132325-7 gnd |
| subject_GND | (DE-588)4026165-7 (DE-588)4298536-5 (DE-588)4461766-5 (DE-588)4132325-7 |
| title | Forest soil organic matter structure and formation |
| title_auth | Forest soil organic matter structure and formation |
| title_exact_search | Forest soil organic matter structure and formation |
| title_full | Forest soil organic matter structure and formation Ingrid Kögel-Knabner |
| title_fullStr | Forest soil organic matter structure and formation Ingrid Kögel-Knabner |
| title_full_unstemmed | Forest soil organic matter structure and formation Ingrid Kögel-Knabner |
| title_short | Forest soil organic matter |
| title_sort | forest soil organic matter structure and formation |
| title_sub | structure and formation |
| topic | Huminstoff (DE-588)4026165-7 gnd Humifizierung (DE-588)4298536-5 gnd Waldhumus (DE-588)4461766-5 gnd Waldboden (DE-588)4132325-7 gnd |
| topic_facet | Huminstoff Humifizierung Waldhumus Waldboden |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=003394463&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV049679111 |
| work_keys_str_mv | AT kogelknabneringrid forestsoilorganicmatterstructureandformation |