An introduction to agricultural geography:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
London [u.a.]
Routledge
1995
|
| Ausgabe: | 2. ed. |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XV, 217 S. Ill., graph. Darst. |
| ISBN: | 0415084423 0415084431 |
Internformat
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Datensatz im Suchindex
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|---|---|
| adam_text | Titel: An introduction to agricultural geography
Autor: Grigg, David
Jahr: 1995
Contents
list of figures xi
list of tables xiv
Acknowledgements xvi
1 Introduction 1
A definition of agriculture 2
Approaches to description 4
Approaches to explanation 5
Purpose and pattern 7
2 The biology of agriculture 9
Food chains 9
Crop productivity 11
Perennials and annuals 12
The biology of livestock 13
Pests and diseases 15
Conclusions 17
3 Climate and crops 19
Optimum growth 19
Optimum areas and competing crops 21
Net photosynthesis 24
Temperature 24
Moisture 29
Grass and cereals in Enghnd and Wales 31
Crop diversity in West Africa 35
Conclusions 37
4 Soils and the farmer 40
The edaphic optimum 40
Criticisms of the edaphic optimum concept 41
Soil characteristics and agriculture 41
Plant nutrient and fertility 43
viii Contents
Farming systems and fertility 43
Soil type and the distribution of arable land 46
Conclusions 49
5 Slopes, altitude and agriculture 51
Altitude 51
Slopes and agriculture 54
Slopes and water 55
Slopes, water and wet-rice 56
Conclusions 57
6 The demand for agricultural products 59
Human food requirements 59
Income and food requirements 61
Low incomes and the starchy staple ratio 62
Higher incomes and changing demand 64
Tastes and preferences 66
Industrial demand for agricultural products 67
The implications of variations in demand 67
7 The economic behaviour of farmers 69
The economic distinctiveness of agriculture 69
The economic behaviour of commercial farmers 71
The economic behaviour of subsistence farmers 81
Conclusions 82
8 The modernization of agriculture 84
The extent of subsistence farming 84
The purchase of inputs 86
Power and machinery 87
Commercial fertilisers 91
Modern crop varieties 91
Insecticides, fungicides and herbicides 94
Irrigation 94
Difference in fad productivity 95
The processing of farm and food output 98
Economic development and agricultural productivity 99
Conclusion 100
9 The state and the farmer 101
Reasons for government intervention 101
Methods of intervention 103
Sugar-beet and sugar-cane 105
Cotton in the USA 106
The Common Agricultural Polig of the European Community 107
Land colonisation and Und reform 110
Conclusions 111
Contents ix
10 Markets and transport 113
Von Thiinen s rings 113
The intensity theory 114
The crop theory 114
Changing technology and von Thiinen s model 117
Modern modifications of von Thiinen 118
Testing von Thiinen 119
Distance and farming today 120
Conclusion 126
11 Agriculture in peri-urban regions 128
The loss of farmland 129
The anticipation of urban expansion 29
Land use and farm enterprises 131
Farm si%e and landownership 131
The disadvantages of peri-urban farming 133
Peri-urban farming in the USA 133
Conclusion 135
12 Population, labour supply and agriculture 137
Agriculture and economic development 137
Agriculture and population in developing countries 141
Subsistence communities in the tropics 145
Density and farming in West Africa 145
Multiple cropping 146
Characteristics of areas of high population densities 147
Agricultural characteristics of regions of high popuktion and growth 148
Agricultural change in regions of declining agricultural kbour force 151
Conclusions 158
13 Farm size and landownership 160
The si^e of farms 160
The layout of farms 165
Landownership and farming 168
The modernisation of agriculture and the organisation of production 170
Conclusion 171
14 The diffusion of agricultural innovations 173
Social diffusion 173
Spatial diffusion 176
The domestication of plants and their present distribution 176
The diffusion of hybrid corn in the USA 178
The diffusion of cattle: Herefords and the Aberdeen Angus 179
The Green Revolution in Ana 180
Conclusions 184
÷ Contents
15 The cultural framework of farming 186
Ethnic factors and farming 186
Religion and crops 188
Religion and livestock 190
Conclusions 195
16 Agriculture and the environment 197
Deforestation 198
Land degradation: soil erosion 202
Land degradation: salinity and alkalinity 204
Desertification 205
Modern farming and the environment 207
Towards sustainable agriculture 209
17 Conclusions 212
Index 213
|
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| author | Grigg, David B. 1934- |
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| discipline | Geowissenschaften Agrar-/Forst-/Ernährungs-/Haushaltswissenschaft / Gartenbau Wirtschaftswissenschaften Geographie |
| edition | 2. ed. |
| format | Book |
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| illustrated | Illustrated |
| indexdate | 2024-07-09T17:50:08Z |
| institution | BVB |
| isbn | 0415084423 0415084431 |
| language | English |
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| physical | XV, 217 S. Ill., graph. Darst. |
| publishDate | 1995 |
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| spelling | Grigg, David B. 1934- Verfasser (DE-588)170462137 aut An introduction to agricultural geography David Grigg 2. ed. London [u.a.] Routledge 1995 XV, 217 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Agrargeografie (DE-588)4000757-1 gnd rswk-swf Agrargeografie (DE-588)4000757-1 s DE-604 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=006853934&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Grigg, David B. 1934- An introduction to agricultural geography Agrargeografie (DE-588)4000757-1 gnd |
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| title | An introduction to agricultural geography |
| title_auth | An introduction to agricultural geography |
| title_exact_search | An introduction to agricultural geography |
| title_full | An introduction to agricultural geography David Grigg |
| title_fullStr | An introduction to agricultural geography David Grigg |
| title_full_unstemmed | An introduction to agricultural geography David Grigg |
| title_short | An introduction to agricultural geography |
| title_sort | an introduction to agricultural geography |
| topic | Agrargeografie (DE-588)4000757-1 gnd |
| topic_facet | Agrargeografie |
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