A study of the agroclimatology of the highlands of eastern Africa: FAO, Unesco, WMO interagency project on agroclimatology
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Buch |
| Sprache: | Undetermined |
| Veröffentlicht: |
Geneva
World Meteorological Organization
1975
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| Ausgabe: | Repr. |
| Schriftenreihe: | World Meteorological Organization: Technical note.
125. World Meteorological Organization: Publications. 339. |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XVI, 197 S. graph.Darst. |
Internformat
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| 245 | 1 | 0 | |a A study of the agroclimatology of the highlands of eastern Africa |b FAO, Unesco, WMO interagency project on agroclimatology |c L. H. Brown ; J. Cochemé* |
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Datensatz im Suchindex
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| adam_text | Titel: A study of the agroclimatology of the highlands of Eastern Africa
Autor: Brown, Leslie
Jahr: 1975
Poge
Foreword .................................................................... VII
Summary (English, French, Russian, Spanish)................................. IX
PART I
Short physical description of the Area ...................................... 1
1. Ethiopia .................................o............................ 1
2. Kenya................................................................ 3
3. Tanzania .............................................................. 3
4. Uganda................................................................ 3
Meteorology and climate ..................................................... 4
1. General considerations................................................ 4
1.1 Terminology ........................................................... 4
1.2 Climatic requirements of plants ....................................... 4
1.3 Agroclimatic characteristics of the Area .............................. 4
2. Atmospheric circulation ............................................... 5
2.1 Basic model ........................................................... 5
2.2 Main modifications of the basic model................................. 7
3. Rain-producing mechanisms ............................................. 8
4. The resulting seasons................................................. 10
4.1 General remarks ....................................................... 10
4.2 The northern highlands of Ethiopia .................................... 11
4.3 The highlands of the Shoan plateau .................................... 13
4.4 The south-western plateau of Ethiopia ................................. 13
4.5 The Arushi Bale massifs and highlands of Sidamo province.............. 14
4.6 The Chercher highlands ................................................ 15
4.7 Central highlands of Kenya ............................................ 16
4.8 Ngorongoro and Kilimanjaro area in Tanzania ........................... 21
4.9 Mount Elgon and Kenya-Uganda border ................................... 24
4.10 The highlands of south-western Uganda and north-western Tanzania ...... 25
4.11 The southern highlands of Tanzania .................................... 26
References ............................................................ 28
Natural vegetation ......................................................... ^0
1. General principles of site analysis ................................... 30
2. Vegetation zones in larger areas...................................... 32
3. Main vegetation zones ................................................. ^4
3.1 Dry thorn bush, bushland or thicket................................... 34
3.2 Combretum savannas ................................................... **
3.3 Acacia savannas ....................................................... %*-
3.4 Moist broad-leaved savanna ...........*............................... 36
Po ge
3.5 Woodlond ............................................................. 36
3.6 Forests .............................................................. 37
3.7 Alpin« ton·· ......................................................... 38
4, Conclusion and summary............................................... 39
R·f«r«nc«s........................................................... 40
Roinfoll ................................................................... 41
1. Avallaci« information ................................................ 41
2. Annual amounts ....................................................... 41
2.1 Distribution ......................................................... 41
2.2 Effect of altitud« ................................................... 44
2.3 Effect of exposure................................................... 46
2.4 Effect of lotitud« ................................................... 46
2.5 Effect of longitud« .................................................. 46
3. Variability of annual amounts and probability estimates .............. 48
3.1 General consideration»....................................,.......... 48
3.2 Empirical approach ................................................... 48
3.3 Th« cumulative distribution.......................................... 50
3.4 Fitting mathematical functions ....................................... 50
3.5 Normal distribution .................................................. 50
3.6 Graphical estimation................................................. 52
3.7 Eost Africa .......................................................... 55
3.8 Ethiopia ............................................................. 55
3.9 Variation of annual variability with »«on omount ..................... 56
4. Seasonal distribution................................................ 58
4.1 General considerations............................................... 58
4.2 Timing of rainfall maxima ............................................ 59
4.3 Anomalies............................................................ 59
4.4 Variability.......................................................... 59
5. Monthly distribution of rainfall..................................... 64
Re ferenee*........................................................... 64
Availability of voter ...................................................... 67
1. General considerations............................................... 67
1.1 Introduction ......................................................... 67
1.2 Scales ............................,.................................. 67
1.3 Terminology.......................................................... 68
2. Potential evaporation and evapotranspiration estimates............... 68
2.1 Method ............................................................... 68
2.2 Sources.............................................................. 69
2.3 Results - Annual amounts............................................. 71
2.4 Variability .......................................................... 73
3. The water budgets.................................................... 74
3.1 Parameter»........................................................... 76
3.2 Ratios and indices................................................... 74
4. Availability of water periods........................................ 77
4.1 General considerations............................................... 77
4.2 Histograms ........................................................... 77
4.3 Circular diagram»..................................................... 80
4.4 Variability ........................................................... 80
4.5 Crop requirement»..................................................... ^°
Reference·............................................................ 85
Light and heot .............................................................. 86
1. Solar radiation ....................................................... 86
1.1 Incoming radiation at the top of the atmosphere....................... 86
1.2 Global radiation ...................................................... 87
1.3 Net rodiation ......................................................... 93
2. Temperature» .......................................................... 94
2.1 Seasonal variation ................................................... 94
2.2 Variation of temperature with height.................................. 97
2.3 Regional variation .................................................... 97
3. Light ................................................................. 100
3.1 Amounts .......... .................................................... 100
3.2 Length of day ......................................................... 101
3.3 Heliothermic index .................................................... 102
References........................................................... 103
PART II
Introduction ................................................................ 105
Cosh crops.................................................................. 106
1. Coffee ................................................................ 106
1.1 General description................................................... 106
1.2 Present area ond value of production .................................. 10/
1.3 Rainfall and water requirement»....................................... 10É
1.4 Temperature requirements.............................................. 115
1.5 Soil requirements..................................................·.. 116
1.6 Disease ond pest factors ............................................. 117
References ............................................................ 127
2. Tea ................................................................... 130
2.1 General description................................................... 130
2.2 Present acreage ond value of production ............................... 131
2.3 Rainfall requirements................................................. 132
2.4 Temperatures .......................................................... 138
2.5 Soil requirements..................................................... 139
2.6 Disease factors....................................................... 141
2.7 Sumeory comments ...................................................... 141
References ............................................................ 142
3. Pyrethrv* ...................................·........................ 143
3.1 Generol description................................................... 143
3.2 Present area and value of production.................................. 144
3.3 Rainfall requirements................................................. 146
3.4 Temperature requirements .............................................. 148
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| physical | XVI, 197 S. graph.Darst. |
| publishDate | 1975 |
| publishDateSearch | 1975 |
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| series | World Meteorological Organization: Technical note. World Meteorological Organization: Publications. |
| series2 | World Meteorological Organization: Technical note. World Meteorological Organization: Publications. |
| spelling | Brown, L. H. Verfasser (DE-588)128048948 aut A study of the agroclimatology of the highlands of eastern Africa FAO, Unesco, WMO interagency project on agroclimatology L. H. Brown ; J. Cochemé* Repr. Geneva World Meteorological Organization 1975 XVI, 197 S. graph.Darst. txt rdacontent n rdamedia nc rdacarrier World Meteorological Organization: Technical note. 125. World Meteorological Organization: Publications. 339. Agrarklimatologie (DE-588)4141638-7 gnd rswk-swf Ostafrika (DE-588)4075722-5 gnd rswk-swf Ostafrika (DE-588)4075722-5 g Agrarklimatologie (DE-588)4141638-7 s DE-604 Cochemé, J. Verfasser (DE-588)128042540 aut World Meteorological Organization: Technical note. 125. (DE-604)BV002539054 125 World Meteorological Organization: Publications. 339. (DE-604)BV001891475 339 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=005629994&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Brown, L. H. Cochemé, J. A study of the agroclimatology of the highlands of eastern Africa FAO, Unesco, WMO interagency project on agroclimatology World Meteorological Organization: Technical note. World Meteorological Organization: Publications. Agrarklimatologie (DE-588)4141638-7 gnd |
| subject_GND | (DE-588)4141638-7 (DE-588)4075722-5 |
| title | A study of the agroclimatology of the highlands of eastern Africa FAO, Unesco, WMO interagency project on agroclimatology |
| title_auth | A study of the agroclimatology of the highlands of eastern Africa FAO, Unesco, WMO interagency project on agroclimatology |
| title_exact_search | A study of the agroclimatology of the highlands of eastern Africa FAO, Unesco, WMO interagency project on agroclimatology |
| title_full | A study of the agroclimatology of the highlands of eastern Africa FAO, Unesco, WMO interagency project on agroclimatology L. H. Brown ; J. Cochemé* |
| title_fullStr | A study of the agroclimatology of the highlands of eastern Africa FAO, Unesco, WMO interagency project on agroclimatology L. H. Brown ; J. Cochemé* |
| title_full_unstemmed | A study of the agroclimatology of the highlands of eastern Africa FAO, Unesco, WMO interagency project on agroclimatology L. H. Brown ; J. Cochemé* |
| title_short | A study of the agroclimatology of the highlands of eastern Africa |
| title_sort | a study of the agroclimatology of the highlands of eastern africa fao unesco wmo interagency project on agroclimatology |
| title_sub | FAO, Unesco, WMO interagency project on agroclimatology |
| topic | Agrarklimatologie (DE-588)4141638-7 gnd |
| topic_facet | Agrarklimatologie Ostafrika |
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