Subsurface soil erosion phenomena in South Africa:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Gotha
Perthes
1998
|
| Ausgabe: | 1. Aufl. |
| Schriftenreihe: | [Petermanns geographische Mitteilungen / Ergänzungsheft]
290 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 128 S. Ill., graph. Darst., Kt. |
| ISBN: | 3623007692 |
Internformat
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| 245 | 1 | 0 | |a Subsurface soil erosion phenomena in South Africa |c Heinrich Reinhard Beckedahl |
| 250 | |a 1. Aufl. | ||
| 264 | 1 | |a Gotha |b Perthes |c 1998 | |
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Datensatz im Suchindex
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|---|---|
| adam_text | Titel: Subsurface soil erosion phenomena in South Africa
Autor: Beckedahl, Heinrich Reinhard
Jahr: 1998
Contents
Preface 7
1. Introduction 9
1.1. The historical context of
erosion studies 9
1.2. Soil erosion and sustainable
land use practice 9
1.3. Soil erosion, geographical
paradigms and
environmentalism 10
2. Subsurface erosion: a review 15
2.1. Terminology 15
2.2. Subsurface erosion and the
hydrological cycle 15
2.3. Mechanisms of pipe formation
and genesis 18
2.3.1. Soil chemical properties and
dispersion 18
2.3.2. Physical soil properties -
swelling and cracking 20
2.3.3. The hydrology of soil pipes 21
2.3.3.1. The nature of soil moisture
movement 21
2.3.3.2. The significance of pipeflow 23
2.3.3.3. Conditions for pipe discharge 26
2.3.4. Biotic factors and pipe
formation 26
2.4. Modelling soil pipes and
pipeflow 27
2.5. Pipeflow and sediment loss 29
3. The physiographic setting of
south eastern southern Africa 31
3.1. Macro-morphology 31
3.2. Geology 34
3.3. Regional soils 36
3.4. Regional climate 38
3.4.1. Mean temperature regimes 38
3.4.2. Atmospheric circulation
and wind phenomena for
the region 38
3.4.3. Precipitation patterns over
southern KwaZulu-Natal and
Transkei 38
3.4.4. Rainfall seasonality 40
3.4.5. Moisture availability 43
3.5. Vegetation patterns 43
4. Subsurface erosion in southern
KwaZulu-Natal and Transkei 45
4.1. An overview 45
4.2. Pipe morphology 50
4.3. Classification of observed
subsurface erosion 51
4.4. Analysis of variance 53
4.4.1. Pipe roof thickness 53
4.4.2. Pipe length 54
4.4.3. Volumetric soil loss per pipe 55
4.4.4. Spatial considerations and
subsurface erosion within the
landscape 55
6
5. Case studies of the subsurface
erosion system 57
5.1. Type I: Scree-slope piping 57
5.2. Type 2: Gully sidewall systems 62
5.3. Type 3: Anthropogenic-ally
induced subsurface erosion
systems 69
5.3.1. Piping associated with road
drainage 69
5.3.2. Piping associated with contour
embankments 72
5.3.3. Piping associated with cut
embankments 73
5.4. Large soil pipe systems
associated with dispersive soils 77
5.4.1. The Luxgoxgo system 77
5.5. Subsurface erosion associated
with seepage on slopes 80
6. Structural relationships and
implications of subsurface
erosion 83
6.1. The relationship between
structure and subsurface erosion 83
Contents
6.2. The significance of subsurface
erosion processes in southern
KwaZulu-Natal and Transkei 91
6.3. The socio-economic implica-
tions of subsurface erosion 93
6.3.1. The problem of soil loss 93
6.3.2. Agricultural considerations 94
6.3.3. Construction in relation to
subsurface erosion 95
7. Conclusions 97
7.1. Social and economic
implications 98
7.2. Rehabilitation of areas affected
by subsurface erosion 98
7.3. The need for further research 98
References 99
List of figures 112
List of tables 115
Index 117
Appendix 121
|
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| discipline | Agrar-/Forst-/Ernährungs-/Haushaltswissenschaft / Gartenbau Geographie |
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| id | DE-604.BV012109445 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T18:21:50Z |
| institution | BVB |
| isbn | 3623007692 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-008199403 |
| oclc_num | 40618890 |
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| physical | 128 S. Ill., graph. Darst., Kt. |
| publishDate | 1998 |
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| series2 | [Petermanns geographische Mitteilungen / Ergänzungsheft] |
| spelling | Beckedahl, Heinrich Reinhard Verfasser aut Subsurface soil erosion phenomena in South Africa Heinrich Reinhard Beckedahl 1. Aufl. Gotha Perthes 1998 128 S. Ill., graph. Darst., Kt. txt rdacontent n rdamedia nc rdacarrier [Petermanns geographische Mitteilungen / Ergänzungsheft] 290 Soil erosion South Africa Soil piping (Hydrology) South Africa Tunnelerosion (DE-588)4528485-4 gnd rswk-swf Bodenerosion (DE-588)4007367-1 gnd rswk-swf Südafrika (Staat) Südafrika Kontinent (DE-588)4058393-4 gnd rswk-swf Südafrika Kontinent (DE-588)4058393-4 g Tunnelerosion (DE-588)4528485-4 s DE-604 Bodenerosion (DE-588)4007367-1 s Ergänzungsheft] [Petermanns geographische Mitteilungen 290 (DE-604)BV008001602 290 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=008199403&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Beckedahl, Heinrich Reinhard Subsurface soil erosion phenomena in South Africa Soil erosion South Africa Soil piping (Hydrology) South Africa Tunnelerosion (DE-588)4528485-4 gnd Bodenerosion (DE-588)4007367-1 gnd |
| subject_GND | (DE-588)4528485-4 (DE-588)4007367-1 (DE-588)4058393-4 |
| title | Subsurface soil erosion phenomena in South Africa |
| title_auth | Subsurface soil erosion phenomena in South Africa |
| title_exact_search | Subsurface soil erosion phenomena in South Africa |
| title_full | Subsurface soil erosion phenomena in South Africa Heinrich Reinhard Beckedahl |
| title_fullStr | Subsurface soil erosion phenomena in South Africa Heinrich Reinhard Beckedahl |
| title_full_unstemmed | Subsurface soil erosion phenomena in South Africa Heinrich Reinhard Beckedahl |
| title_short | Subsurface soil erosion phenomena in South Africa |
| title_sort | subsurface soil erosion phenomena in south africa |
| topic | Soil erosion South Africa Soil piping (Hydrology) South Africa Tunnelerosion (DE-588)4528485-4 gnd Bodenerosion (DE-588)4007367-1 gnd |
| topic_facet | Soil erosion South Africa Soil piping (Hydrology) South Africa Tunnelerosion Bodenerosion Südafrika (Staat) Südafrika Kontinent |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=008199403&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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