Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Bonn
ZEF, Center for Development Research, University of Bonn
2019
|
| Schriftenreihe: | Ecology and development series
No. 105 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis Inhaltsverzeichnis |
| Beschreibung: | 147 Seiten Illustrationen 21 cm |
| ISBN: | 9783940124623 |
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| 245 | 1 | 0 | |a Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana |c Ephraim Sekyi-Annan |
| 264 | 1 | |a Bonn |b ZEF, Center for Development Research, University of Bonn |c 2019 | |
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| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a Ecology and development series |v No. 105 | |
| 502 | |b Dissertation |c Rheinische Friedrich-Wilhelms-Universität Bonn |d 2019 | ||
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Datensatz im Suchindex
| _version_ | 1804180496307978240 |
|---|---|
| adam_text | TABLE
OF
CONTENTS
1
INTRODUCTION
............................................................................................................
1
1.1
BACKGROUND
AND
PROBLEM
STATEMENT
.......................................................................
1
1.2
IRRIGATION
SCHEME
DEVELOPMENT
IN
SUB-SAHARAN
AFRICA
.........................................
3
1.3
RESEARCH
NEEDS
.............................................................................................................
6
1.4
RESEARCH
OBJECTIVES
.....................................................................................................
8
1.5
OUTLINE
OF
THE
THESIS
....................................................................................................
9
2
STUDY
REGION
............................................................................................................
10
2.1
GEOGRAPHICAL
AND
DEMOGRAPHICAL
INFORMATION
....................................................
10
2.2
CLIMATE
AND
AGRO-ECOLOGICAL
ZONES
.........................................................................
10
2.3
GEOMORPHOLOGY,
SOILS,
RELIEF
AND
HYDROGEOLOGY
..................................................
13
2.4
VEGETATION
AND
LAND
USE
...........................................................................................
15
2.5
HYDROLOGY
AND
IRRIGATION
SYSTEMS
............................................................................
16
2.5.1
VEA
IRRIGATION
SCHEME
...............................................................................................
18
2.5.2
BONGO
IRRIGATION
SCHEME
...........................................................................................18
3
PERFORMANCE
EVALUATION
OF
RESERVOIR-BASED
IRRIGATION
SCHEMES
20
3.1
INTRODUCTION
................................................................................................................
20
3.2
MATERIALS
AND
METHODS
............................................................................................
22
3.2.1
STUDY
SITES
...................................................................................................................22
3.2.2
SELECTION
OF
FARMERS
FIELDS
......................................................................................
24
3.2.3
SOIL
PROFILE
CHARACTERISTICS
........................................................................................
25
3.2.4
ACTUAL
STORAGE
OF
THE
RESERVOIRS
..............................................................................
27
3.2.5
GROSS
WATER
DEMAND
FOR
MULTIPLE
USERS
................................................................
28
3.2.6
WATER
AVAILABILITY
INDEX
............................................................................................
31
3.2.7
EFFICIENCY
OF
WATER
DELIVERY
AND
FIELD
APPLICATION
................................................
31
3.2.8
DETERMINATION
OF
WATER
PRODUCTIVITY
AND
RELATIVE
TRANSPIRATION
.......................
34
3.3
RESULTS
..........................................................................................................................35
3.3.1
RESERVOIR
PERFORMANCE
.............................................................................................
35
3.3.2
PERFORMANCE
OF
THE
WATER
CONVEYANCE
NETWORK
.................................................
36
3.3.3
SOIL
MOISTURE
DYNAMICS
AND
FIELD
APPLICATION
EFFICIENCY
.....................................
37
3.3.4
OVERALL
SYSTEM
EFFICIENCY
(E
S
)
..................................................................................39
3.3.5
DELIVERY
PERFORMANCE
RATIO
.....................................................................................
40
3.3.6
RELATIVE
TRANSPIRATION
...............................................................................................
40
3.3.7
CROP
YIELD
AND
WATER
PRODUCTIVITY
..........................................................................
41
3.4
DISCUSSION
....................................................................................................................
43
3.4.1
PERFORMANCE
OF
RESERVOIRS
AND
WATER
CONVEYANCE
SYSTEMS
..............................
43
3.4.2
FIELD
APPLICATION
EFFICIENCY
.......................................................................................
44
3.4.3
NEED
FOR
WHOLE-SYSTEM
EVALUATION
.........................................................................
45
3.5
CONCLUSIONS
...................................................................................................................
46
4
IMPROVING
DRY-SEASON
CROP
IRRIGATION
SCHEDULES
IN
MEDIUM-
AND
SMALL-SCALE
RESERVOIR-BASED
IRRIGATION
SCHEMES...................................
47
4.1
INTRODUCTION
................................................................................................................
47
4.2
MATERIALS
AND
METHODS
............................................................................................
49
4.2.1
STUDY
SITES
....................................................................................................................
49
4.2.2
MODEL
DESCRIPTION
......................................................................................................
50
4.2.3
DATA
COLLECTION
AND
PREPARATION
..............................................................................
50
4.2.4
MODEL
PARAMETERIZATION
AND
VALIDATION
FOR
TOMATO
............................................
54
4.2.5
IMPROVED
IRRIGATION
SCHEDULING
FOR
TOMATO
CULTIVATION
.......................................
55
4.3
RESULTS
...........................................................................................................................
56
4.3.1
REFERENCE
EVAPOTRANSPIRATION
IN
THE
DRY
SEASON
.................................................
56
4.3.2
CROP
GROWTH
PARAMETERS
..........................................................................................
56
4.3.3
CROP
YIELD
COMPONENTS
..............................................................................................
59
4.3.4
GROUNDWATER
LEVEL
AND
CAPILLARY
RISE
.....................................................................
59
4.3.5
TRADITIONAL
IRRIGATION
SCHEDULING
.............................................................................
62
4.3.6
MODEL
PERFORMANCE
...................................................................................................
63
4.3.7
IMPROVED
IRRIGATION
SCHEDULE
FOR
TOMATO
...............................................................
65
4.4
DISCUSSION
....................................................................................................................
67
4.4.1
CROP
YIELD
.....................................................................................................................
67
4.4.2
IRRIGATION
PRACTICE
.......................................................................................................
68
4.4.3
IMPROVED
IRRIGATION
SCHEDULING
...............................................................................
68
4.5
CONCLUSIONS
..................................................................................................................
69
5
POTENTIAL
OF
SMALL-
AND
MEDIUM-SCALE
RESERVOIR-BASED
IRRIGATION
SCHEMES
FOR
SUPPLEMENTAL
IRRIGATION
IN
THE
RAINY
SEASON
..............
71
5.1
INTRODUCTION
.................................................................................................................
71
5.2
MATERIALS
AND
METHODS
.............................................................................................73
5.2.1
STUDY
SITE
.....................................................................................................................73
5.2.2
DATA
COLLECTION
AND
PREPARATION
IN
THE
RAINY
SEASON
...........................................
74
5.2.3
MODEL
PARAMETERIZATION
AND
VALIDATION
FOR
MAIZE
..............................................
76
5.2.4
SUPPLEMENTAL
IRRIGATION
REQUIREMENT
FOR
MAIZE
..................................................
77
5.3
RESULTS
...........................................................................................................................
77
5.3.1
REFERENCE
EVAPOTRANSPIRATION
IN
THE
RAINY
SEASON
..............................................
77
5.3.2
RAINFALL
AND
DRY
SPELLS
................................................................................................
78
5.3.3
CROP
GROWTH
PARAMETERS
..........................................................................................
78
5.3.4
CROP
YIELD
COMPONENTS
..............................................................................................
79
5.3.5
GROUNDWATER
CONTRIBUTION
TO
MAIZE
FIELDS
............................................................
80
5.3.6
MODEL
PERFORMANCE
...................................................................................................
81
5.3.7
SCENARIO
ANALYSIS
OF
SUPPLEMENTAL
IRRIGATION
REQUIREMENT
FOR
MAIZE
...............
82
5.4
DISCUSSION
...................................................................................................................
83
5.4.1
CROP
YIELDS
..................................................................................................................
83
5.4.2
FEASIBILITY
OF
SUPPLEMENTAL
IRRIGATION
.....................................................................85
5.5
CONCLUSIONS
.................................................................................................................
86
6
SCENARIO-BASED,
FUNCTIONAL
ASSESSMENT
OF
MULTI-PURPOSE
RESERVOIR-BASED
IRRIGATION
SCHEMES
UNDER
CLIMATE
VARIABILITY
.....
87
6.1
INTRODUCTION
................................................................................................................
87
6.2
MATERIALS
AND
METHODS
............................................................................................
91
6.2.1
STUDY
SITE
....................................................................................................................
91
6.2.2
DESCRIPTION
OF
THE
WEAP
MODEL
..............................................................................
92
6.2.3
PARAMETERIZATION
OF
WEAP
.......................................................................................92
6.2.4
EVALUATION
OF
THE
SIMULATION
RESULTS
.....................................................................
101
6.3
RESULTS
.......................................................................................................................
102
6.3.1
DISCHARGE
INTO
THE
RESERVOIR
..................................................................................
102
6.3.2
WEAP
MODEL
PERFORMANCE
....................................................................................
102
6.4
DISCUSSION
.................................................................................................................
107
6.4.1
WATER
AVAILABILITY
IN
THE
RESERVOIRS
......................................................................
107
6.4.2
REFERENCE
SCENARIO
..................................................................................................
108
6.4.3
RAINFALL
VARIABILITY
SCENARIO
....................................................................................
108
6.4.4
SYSTEM
EFFICIENCY
IMPROVEMENT
SCENARIO
...........................................................
109
6.4.5
IRRIGABLE
AREA
EXPANSION
SCENARIO
........................................................................
109
6.4.6
SUPPLEMENTAL
IRRIGATION
SCENARIO
.........................................................................
109
6.4.7
RESEARCH
LIMITATIONS
AND
OUTLOOK
.........................................................................
110
6.5
CONCLUSIONS
................................................................................................................
ILL
7
OVERALL
DISCUSSION
AND
CONCLUSIONS
.........................................................
112
7.1
INTEGRATED
MANAGEMENT
OF
WATER
RESOURCES
IN
MULTI-PURPOSE
RESERVOIR-BASED
IRRIGATION
SCHEMES
UNDER
CLIMATE
VARIABILITY
......................................................
112
7.2
YEAR-ROUND
IRRIGATION
MANAGEMENT
AS
A
FEASIBLE
ADAPTATION
STRATEGY
UNDER
WATER
SCARCITY
...........................................................................................................
114
7.3
ADVANTAGES
AND
LIMITATIONS
OF
USING
MODELING
TOOLS
IN
AGRICULTURAL
WATER
MANAGEMENT
............................................................................................................
115
7.4
OUTLOOK
AND
FUTURE
RESEARCH
NEEDS
.....................................................................
117
8
REFERENCES
..............................................................................................................
119
9
APPENDICES
..............................................................................................................
128
10
ACKNOWLEDGEMENTS
148
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| genre | (DE-588)4113937-9 Hochschulschrift gnd-content |
| genre_facet | Hochschulschrift |
| geographic | Ghana (DE-588)4020949-0 gnd |
| geographic_facet | Ghana |
| id | DE-604.BV046152451 |
| illustrated | Illustrated |
| indexdate | 2024-07-10T08:36:41Z |
| institution | BVB |
| isbn | 9783940124623 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-031532549 |
| oclc_num | 1120146947 |
| open_access_boolean | |
| owner | DE-12 |
| owner_facet | DE-12 |
| physical | 147 Seiten Illustrationen 21 cm |
| publishDate | 2019 |
| publishDateSearch | 2019 |
| publishDateSort | 2019 |
| publisher | ZEF, Center for Development Research, University of Bonn |
| record_format | marc |
| series | Ecology and development series |
| series2 | Ecology and development series |
| spelling | Sekyi-Annan, Ephraim Verfasser (DE-588)1179237471 aut Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana Ephraim Sekyi-Annan Bonn ZEF, Center for Development Research, University of Bonn 2019 147 Seiten Illustrationen 21 cm txt rdacontent n rdamedia nc rdacarrier Ecology and development series No. 105 Dissertation Rheinische Friedrich-Wilhelms-Universität Bonn 2019 Bewässerungssystem (DE-588)4145122-3 gnd rswk-swf Wasserwirtschaft (DE-588)4064821-7 gnd rswk-swf Ghana (DE-588)4020949-0 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Ghana (DE-588)4020949-0 g Wasserwirtschaft (DE-588)4064821-7 s Bewässerungssystem (DE-588)4145122-3 s DE-604 Ecology and development series No. 105 (DE-604)BV015679114 105 B:DE-101 application/pdf http://d-nb.info/1189158213/04 Inhaltsverzeichnis DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=031532549&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Sekyi-Annan, Ephraim Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana Ecology and development series Bewässerungssystem (DE-588)4145122-3 gnd Wasserwirtschaft (DE-588)4064821-7 gnd |
| subject_GND | (DE-588)4145122-3 (DE-588)4064821-7 (DE-588)4020949-0 (DE-588)4113937-9 |
| title | Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana |
| title_auth | Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana |
| title_exact_search | Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana |
| title_full | Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana Ephraim Sekyi-Annan |
| title_fullStr | Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana Ephraim Sekyi-Annan |
| title_full_unstemmed | Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana Ephraim Sekyi-Annan |
| title_short | Performance evaluation of reservoir-based irrigation schemes in the Upper East region of Ghana |
| title_sort | performance evaluation of reservoir based irrigation schemes in the upper east region of ghana |
| topic | Bewässerungssystem (DE-588)4145122-3 gnd Wasserwirtschaft (DE-588)4064821-7 gnd |
| topic_facet | Bewässerungssystem Wasserwirtschaft Ghana Hochschulschrift |
| url | http://d-nb.info/1189158213/04 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=031532549&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV015679114 |
| work_keys_str_mv | AT sekyiannanephraim performanceevaluationofreservoirbasedirrigationschemesintheuppereastregionofghana |
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