Characterization of refractory soil organic matter in long-term agroecosystem experiments:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
2002
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | München, Techn. Univ., Diss., 2002 |
| Beschreibung: | 184 S. Ill., graph. Darst. |
Internformat
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| 100 | 1 | |a Kiem, Rita |d 1969- |e Verfasser |0 (DE-588)124516408 |4 aut | |
| 245 | 1 | 0 | |a Characterization of refractory soil organic matter in long-term agroecosystem experiments |c Rita Kiem |
| 264 | 1 | |c 2002 | |
| 300 | |a 184 S. |b Ill., graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 500 | |a München, Techn. Univ., Diss., 2002 | ||
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Datensatz im Suchindex
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CONTENTS
1
INTRODUCTION
.
1
1.1
SOIL
ORGANIC
CARBON
(SOC)
AND
ITS
REFRACTORY
COMPARTMENT
.
1
1.2
STABILIZATION
MECHANISMS
FOR
SOC.
.
2
1.3
OBJECTIVES
.
5
1.4
EXPERIMENTAL
AND
METHODOLOGICAL
APPROACH
.
5
1.4.1
EXPERIMENTAL
APPROACH
.
5
1.4.2
METHODS
.
6
1.4.2.1
PHYSICAL
FRACTIONATION
TECHNIQUES
.
6
1.4.2.2
TECHNIQUES
FOR
CHARACTERIZING
SOC
IN
BULK
SOILS
AND
PARTICLE-SIZE
FRACTIONS
.
7
1.4.2.3
TECHNIQUES
FOR
CHARACTERIZING
THE
MINERAL
MATRIX
IN
PARTICLE-SIZE
FRACTIONS
6
PM
.
8
7.5
REFERENCES
.
9
2
DISTRIBUTION
OF
REFRACTORY
OC
BETWEEN
PARTICLE-SIZE
FRACTIONS
.
11
2.7
INTRODUCTION
.
11
2.2
MATERIALS
AND
METHODS
.
13
2.2.1
LONG-TERM
EXPERIMENTAL
SITES
AND
SOIL
SAMPLING
.
13
2.2.2
PARTICLE-SIZE
FRACTIONATION
(ULTRASONIC
DISPERSION
I
SPLITT)
.
15
2.2.2.1
DISPERSION
AND
FRACTIONATION
IN
THE
RANGE
2000-250
PM
.
15
2.2.2.2
FRACTIONATION
IN
THE
RANGE
250
PM
.
16
2.2.3
TEXTURAL
ANALYSIS
(CHEMICAL
DISPERSION
/
SEDIMENTATION)
.
19
2.2.4
CARBON
AND
NITROGEN
ANALYSES
.
19
2.2.5
STATISTICS
.
20
2.3
RESULTS
AND
DISCUSSION
.
20
2.3.1
COMPARISON
OF
FRACTIONATION
PROCEDURES:
ULTRASONIC
DISPERSION
/
SPLITT
VERSUS
CHEMICAL
DISPERSION
/
SEDIMENTATION
.
20
2.3.2
CONTENTS
AND
DISTRIBUTION
OF
ORGANIC
CARBON
.
24
2.3.3
NITROGEN
CONTENTS
AND
CARBON-TO-NITROGEN
RATIOS
.
30
2.4
CONCLUSIONS
.
33
2.5
REFERENCES
.
34
3
ORGANIC
CARBON
IN
RELATION
TO
MINERAL
SURFACE
AREA
AND
IRON
OXIDES
IN
FRACTIONS
6
PM
.
37
3.1
INTRODUCTION
.
37
3.2
MATERIALS
AND
METHODS
.
39
3.2.1
SOILS
FROM
LONG-TERM
AGROECOSYSTEM
EXPERIMENTS
.
39
3.2.2
PARTICLE-SIZE
FRACTIONATION
.
41
3.2.3
DENSITY FRACTIONATION
.
41
3.2.4
DETERMINATION
OF
C
.
42
3.2.5
DETERMINATION
OF
SPECIFIC
SURFACE
AREA
(SSA)
.
42
3.2.5.1
SSA
OF
PARTICLE-SIZE
FRACTIONS
AFTER
VARIOUS
TREATMENTS
.
42
3.2.5.2
REMOVAL
OF
ORGANIC
MATTER
.
44
3.2.5.3
REMOVAL
OF
OXIDES
(SANDY
SOILS)
.
45
3.2.6
DETERMINATION
OF
DITHIONITE
AND
OXALATE
EXTRACTABLE
FE
(FE I
AND
FEO)
.
45
3.2.7
X-RAY
DIFFRACTION
ANALYSIS
.
46
3.2.8
STATISTICS
.
46
3.3
RESULTS
AND
DISCUSSION
.
46
CONTENTS
3.3.1
ORGANIC
CARBON
IN
RELATION
TO
TOTAL
MINERAL
SURFACE
AREA
.
46
3.3.1.1
SANDY SOILS
(THYROW,
SKIEMIEWICE)
.
46
3.3.1.2
LOAMY
SOIL
(BAD
LAUCHSTADT)
.
51
3.3.1.3
SANDY SOILS
VERSUS
LOAMY
SOIL
.
52
3.3.1.4
RATIOS
OF
ORGANIC
CARBON-TO-SURFACE
AREA
.
53
3.3.2
EFFECT
OF
OM-REMOVAL
ON
SURFACE
AREA
.
53
3.3.3
ORGANIC
CARBON
IN
RELATION
TO
OXIDES
.
56
3.3.3.1
CONTENTS
OF
FE
D
AND
FE
0
.
56
3.3.3.2
CONTRIBUTION
OF
OXIDES
TO
THE
MINERAL
SURFACE
AREA
(SANDY
SOILS)
.
59
3.4
CONCLUSIONS
.
63
3.5
REFERENCES
.
63
4
STRUCTURAL
CHARACTERIZATION
OF
REFRACTORY
SOIL
ORGANIC
CARBON
BY
MEANS
OF
,3
C
NMR
SPECTROSCOPY
AND
POLYSACCHARIDE
ANALYSIS
.
67
4.1
INTRODUCTION
.
67
4.2
MATERIALS
AND
METHODS
.
69
4.2.1
STUDY
SITES
AND
SOIL
SAMPLING
.
69
4.2.2
ELEMENTAL
ANALYSIS
AND
PH
.
69
4.2.3
L3
C
CPMAS
NMR
SPECTROSCOPY
.
71
4.2.4
POLYSACCHARIDE
ANALYSIS
.
73
4.3
RESULTS
AND
DISCUSSION
.
73
4.3.1
OC
AND
N
CONTENTS,
PH
VALUES
.
73
4.3.2
STRUCTURAL
COMPOSITION
OF
SOC
(
L3
C
NMR)
.
75
4.3.3
C-DEPLETION
ASSOCIATED
WITH
THE
VARIOUS
SPECIES
(
L3
C
NMR)
.
81
4.3.4
POLYSACCHARIDES
.
84
4.3.5
POLYSACCHARIDES
VERSUS
O-ALKYL
C
(
13
C
NMR)
.
84
4.4
CONCLUSIONS
.
87
4.5
REFERENCES
.
87
5
CONTRIBUTION
OF
AIRBORNE
CONTAMINANTS
TO
THE
REFRACTORY
ORGANIC
CARBON
OF
ARABLE
SOILS
IN
HIGHLY
INDUSTRIALIZED
AREAS
.
91
5.1
INTRODUCTION
.
91
5.2
MATERIALS
AND
METHODS
.
93
5.2.1
STUDY
SITES
.
93
5.2.1.1
ARABLE
SOILS
FROM
INDUSTRIALIZED
AREAS
(THYROW,
SKIEMIEWICE,
BAD
LAUCHSTADT)
.
93
5.2.1.2
ARABLE
SOIL
FROM
A
RURAL
REGION
(SCHEYERN)
.
95
5.2.2
PARTICLE-SIZE
FRACTIONATION
.
95
5.2.3
ELEMENTAL
ANALYSIS
.
97
5.2.4
,3
C
CPMAS
NMR SPECTROSCOPY
.
97
5.2.4.1
SAMPLE
PRETREATMENT
.
97
5.2.4.2
PARAMETERS
USED
IN
CPMAS
NMR
EXPERIMENTS
.
97
5.2.4.3
DIPOLAR
DEPHASING
EXPERIMENTS
.
98
5.2.5
COAL
PETROGRAPHY
(THYROW
AND
BAD
LAUCHSTADT)
.
100
5.3
RESULTS
AND
DISCUSSION
.
101
5.3.1
FRACTIONS
2000-20
PM
.
101
5.3.1.1
C-TO-NRATIOS
.
101
5.3.1.2
L3
C
NMR
SPECTROSCOPY
.
101
5.3.1.3
COAL
PETROGRAPHIC
ANALYSIS (THYROW
AND
BAD
LAUCHSTADT)
.
108
5.3.1.4
COAL
PETROGRAPHY
VERSUS
L3
C
NMR
.
112
CONTENTS
5.3.2
FRACTIONS
20
GM
.
113
5.3.2.1
C-TO-N
RATIOS
.
113
5.3.2.2
13
C
NMR
SPECTROSCOPY
.
114
5.3.3
OC
BALANCES
(THYROW
AND
BAD
LAUCHSTADT)
.
119
5.4
CONCLUSIONS
.
121
5.5
REFERENCES
.
122
6
CONTRIBUTION
OF
LIGNIN
TO THE
REFRACTORY
SOC
POOL
.
127
6.1
INTRODUCTION
.
127
6.2
MATERIALS
AND
METHODS
.
129
6.2.1
LONG-TERM
EXPERIMENTS
AND
SOIL
SAMPLING
.
129
6.2.2
PARTICLE-SIZE
FRACTIONATION
(SOILS
FROM
THYROW
AND
BAD
LAUCHSTADT)
.
132
6.2.3
DENSITY
FRACTIONATION
.133
6.2.4
CARBON
ANALYSIS
.133
6.2.5
ANALYSIS
OF
LIGNIN
.
134
6.2.6
STATISTICS
.
136
6.3
RESULTS
AND
DISCUSSION
.
136
6.3.1
VSC
CONTENTS
.
136
6.3.1.1
BULK
SAMPLES
.
136
6.3.1.2
PARTICLE-SIZE
FI-ACTIONS
(THYROW
AND
BAD
LAUCHSTADT)
.
137
6.3.2
ACID-TO-ALDEHYDE
RATIOS
AND
SYRINGYL-TO-VANILLYL-RATIO
.
141
6.3.2.1
BULK
SAMPLES
.
141
6.3.2.2
PARTICLE-SIZE
FRACTIONS
(THYROW
AND
BAD
LAUCHSTADT)
.
143
6.3.3
CONTRIBUTION
OF
LIGNIN
TO THE
REFRACTORY
C
POOL
.
144
6.3.4
ACID-TO-ALDEHYDE
RATIOS
VERSUS
VSC
CONTENTS
.
146
6.3.4.1
BULK
SAMPLES
.
146
6.3.4.2
PARTICLE-SIZE
FRACTIONS
(THYROW
AND
BAD
LAUCHSTADT)
.
147
6.4
REFERENCES
.
149
7
CONTRIBUTION
OF
NON-CELLULOSIC
POLYSACCHARIDES
TO
THE
REFRACTORY
SOC
POOL.
152
7.1
INTRODUCTION
.
152
7.2
MATERIALS
AND
METHODS
.
154
7.2.1
LONG-TERM
EXPERIMENTAL
SITES
AND
SOIL
SAMPLING
.
154
7.2.2
PARTICLE-SIZE
FRACTIONATION
(SOILS
FROM
THYROW
AND
BAD
LAUCHSTADT)
.
154
7.2.3
DENSITY
FRACTIONATION
.
155
7.2.4
CARBON
ANALYSIS
.155
7.2.5
DETERMINATION
OF
NEUTRAL
SUGARS
AND
URONIC
ACIDS
.
156
7.2.6
DETERMINATION
OF
SPECIFIC
SURFACE
AREA
(SSA)
.
158
7.2.7
STATISTICS
.
158
7.3
RESULTS
AND
DISCUSSION
.
158
7.3.1
CONTENTS
OF
POLYSACCHARIDES
.
158
7.3.1.1
BULK
SAMPLES
.
158
7.3.1.2
PARTICLE-SIZE
FRACTIONS (THYROW
AND
BAD
LAUCHSTADT)
.
161
7.3.2
MASS
RATIOS
OF
HEXOSES-TO-PENTOSES
.
166
7.3.2.1
BULK
SAMPLES
.
166
7.3.2.2
PARTICLE-SIZE
FRACTIONS
(THYROW
AND
BAD
LAUCHSTADT)
.
168
7.3.3
CONTRIBUTION
OF
POLYSACCHARIDES
TO THE
REFRACTORY
C
POOL
.
170
7.3.4
LONG-TERM
STABILIZATION
IN
SOIL:
POLYSACCHARIDES
VERSUS
LIGNIN
.
170
7.4
REFERENCES
.
171
CONTENTS
8
SYNTHESIS:
REFRACTORY
SOC
STUDIED
IN
LONG-TERM
AGROECOSYSTEM
EXPERIMENTS
-
174
8.1
STABILITY
OF
OC
AND
N
IN
PARTICLE-SIZE
FRACTIONS
.
174
8.2
CHEMICAL
STRUCTURE
OF
REFRACTORY
OC
.
174
8.2.1
SOC
COMPOSITION
AS
REVEALED
BY
L3
C
NMR
AND
CONTRIBUTION
OF
AIRBORNE
CONTAMINANTS
.
174
8.2.2
CONTRIBUTION
OF
LIGNIN
AND
POLYSACCHARIDES
.
176
8.2.3
COMPARISON
OF
RESULTS:
L3
C
NMR
VERSUS
COMPOUND
CLASSES
DETERMINED
BY
CHEMICAL
DEGRADATIVE
METHODS
.
177
8.2.3.1
LIGNIN
.
177
8.2.3.2
POLYSACCHARIDES
.
178
8.3
STABILIZATION
MECHANISMS
.
179
8.4
REFERENCES
.
180
9
SUMMARY
.
181
10
ZUSAMMENFASSUNG
.
183 |
| any_adam_object | 1 |
| author | Kiem, Rita 1969- |
| author_GND | (DE-588)124516408 |
| author_facet | Kiem, Rita 1969- |
| author_role | aut |
| author_sort | Kiem, Rita 1969- |
| author_variant | r k rk |
| building | Verbundindex |
| bvnumber | BV017168605 |
| classification_tum | LAN 117d |
| ctrlnum | (OCoLC)76487603 (DE-599)BVBBV017168605 |
| discipline | Agrarwissenschaft Pflanzenbau |
| format | Book |
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| genre | (DE-588)4113937-9 Hochschulschrift gnd-content |
| genre_facet | Hochschulschrift |
| id | DE-604.BV017168605 |
| illustrated | Illustrated |
| indexdate | 2024-08-14T00:58:04Z |
| institution | BVB |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-010351531 |
| oclc_num | 76487603 |
| open_access_boolean | |
| owner | DE-91 DE-BY-TUM DE-M49 DE-BY-TUM DE-12 |
| owner_facet | DE-91 DE-BY-TUM DE-M49 DE-BY-TUM DE-12 |
| physical | 184 S. Ill., graph. Darst. |
| publishDate | 2002 |
| publishDateSearch | 2002 |
| publishDateSort | 2002 |
| record_format | marc |
| spelling | Kiem, Rita 1969- Verfasser (DE-588)124516408 aut Characterization of refractory soil organic matter in long-term agroecosystem experiments Rita Kiem 2002 184 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier München, Techn. Univ., Diss., 2002 Korngrößenanalyse (DE-588)4165322-1 gnd rswk-swf TOC (DE-588)4381803-1 gnd rswk-swf Stabilität (DE-588)4056693-6 gnd rswk-swf Ackerboden (DE-588)4141296-5 gnd rswk-swf Dauerversuch (DE-588)4205730-9 gnd rswk-swf Lignin-Polysaccharidkomplex (DE-588)4167662-2 gnd rswk-swf Humus (DE-588)4160800-8 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Ackerboden (DE-588)4141296-5 s Humus (DE-588)4160800-8 s TOC (DE-588)4381803-1 s DE-604 Lignin-Polysaccharidkomplex (DE-588)4167662-2 s Stabilität (DE-588)4056693-6 s Korngrößenanalyse (DE-588)4165322-1 s Dauerversuch (DE-588)4205730-9 s DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=010351531&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Kiem, Rita 1969- Characterization of refractory soil organic matter in long-term agroecosystem experiments Korngrößenanalyse (DE-588)4165322-1 gnd TOC (DE-588)4381803-1 gnd Stabilität (DE-588)4056693-6 gnd Ackerboden (DE-588)4141296-5 gnd Dauerversuch (DE-588)4205730-9 gnd Lignin-Polysaccharidkomplex (DE-588)4167662-2 gnd Humus (DE-588)4160800-8 gnd |
| subject_GND | (DE-588)4165322-1 (DE-588)4381803-1 (DE-588)4056693-6 (DE-588)4141296-5 (DE-588)4205730-9 (DE-588)4167662-2 (DE-588)4160800-8 (DE-588)4113937-9 |
| title | Characterization of refractory soil organic matter in long-term agroecosystem experiments |
| title_auth | Characterization of refractory soil organic matter in long-term agroecosystem experiments |
| title_exact_search | Characterization of refractory soil organic matter in long-term agroecosystem experiments |
| title_full | Characterization of refractory soil organic matter in long-term agroecosystem experiments Rita Kiem |
| title_fullStr | Characterization of refractory soil organic matter in long-term agroecosystem experiments Rita Kiem |
| title_full_unstemmed | Characterization of refractory soil organic matter in long-term agroecosystem experiments Rita Kiem |
| title_short | Characterization of refractory soil organic matter in long-term agroecosystem experiments |
| title_sort | characterization of refractory soil organic matter in long term agroecosystem experiments |
| topic | Korngrößenanalyse (DE-588)4165322-1 gnd TOC (DE-588)4381803-1 gnd Stabilität (DE-588)4056693-6 gnd Ackerboden (DE-588)4141296-5 gnd Dauerversuch (DE-588)4205730-9 gnd Lignin-Polysaccharidkomplex (DE-588)4167662-2 gnd Humus (DE-588)4160800-8 gnd |
| topic_facet | Korngrößenanalyse TOC Stabilität Ackerboden Dauerversuch Lignin-Polysaccharidkomplex Humus Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=010351531&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT kiemrita characterizationofrefractorysoilorganicmatterinlongtermagroecosystemexperiments |