Transcript Climate change and Urban Vulnerability in Africa

Climate change and Urban
Vulnerability in Africa (CLUVA)
Task 2.2 WORKshop
Munich 2012
Addis Ababa Progress Report
17/07/2015
Kumelachew Yeshitela
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Addis Task 2.2 members
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• Dr. Kumelachew Yeshitela (Vegetation Ecologist)
• Tekle Woldegerima (PhD candidate, Urban green infrastructure)
• Alemu Nebebe (GIS expert)
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Kumelachew Yeshitela
Slide 2
Introduction to Addis Ababa
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Founded 1887
City divided into 10 subcities & 116 woredas (lower level of administration)
Altitude: 2200-3100 m
Mean annual RF = 1200mm
Mean annual Temp =16 0C
Population = 2.74 million
(2007 census)
• Area = 540 km2
• Green area = 9100 ha
• Green area (plan) = 22,000 ha
Urban Green ifrastructure components
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Forest
River buffer vegetation
Recreation park
Urban Agriculture
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Kumelachew Yeshitela
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Task 2.2: Vulnerability and adaptation
potential associated with urban ecosystems
• TASK
– Characterising Addis Ababa and its current green infrastructure
– Assessing the current provisioning and regulating ecosystem
services of the green infrastructure of Addis Ababa
– Assessing the vulnerability of green structures in Addis Ababa
– Developing Green infrastructure planning for Addis Ababa
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Kumelachew Yeshitela
Slide 5
Task 2.2 activities completed
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Kumelachew Yeshitela
Draft UMTs of Addis
• 32 UMTs classified under:
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AGRICULTURE
VEGETATION
RECREATION
UTILITIES
RESIDENTIAL
RETAIL
INDUSTRY & BUSINESS
TRANSPORT
COMMUNITY SERVICE
MINERALS
STATE House
BARELAND
Kumelachew Yeshitela
Slide 7
UMT transect buffer
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Area coverage 145 Km2
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Passes through all the ten sub cities
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North to South direction following the
main rivers (Little Akaki, Akaki, Kebena
and Bulbula)
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Includes the highest (3000m) and
lowest (2055) Elevations of the City (i.e.
Upper, Middle, and lower catchment)
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Passes through city center, peri-urban
area
Addis Ababa CLUVA Project Transect Buffer
468000
472000
476000
480000
484000
488000
464000
468000
472000
476000
480000
484000
488000
´
Legend
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Includes Forest, River bank vegetation,
Parks, Urban Agriculture
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Kumelachew Yeshitela
Transect Area Boundary
972000
972000
976000
976000
980000
980000
984000
984000
988000
988000
992000
992000
996000
996000
1000000
1000000
1004000
1004000
1008000
1008000
464000
Meters
0
1,050
2,100
4,200
6,300
8,400
Subcity Boundary
Road
Coordinate System:
Adindan_UTM_Zone_37N
Projection: Transverse_Mercator
April, 2012
Slide 8
Aerial photo information (2006)
-Aerial photo taken December 2005 (small area May 2006)
-Purpose : Land Information System
-Areal photo and mapping by GeoMaps
-Aerial photo Resolution 0.2m
-Orthophoto Scale 1:2,000 (0.2m Ground sampling resolution)
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Kumelachew Yeshitela
Slide 9
UMT mapping methodology
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Digitizing using AutoCad 2007
Convert (Import) to ArcGIS 9.3
Editing, Visualization in ArcGIS 9.3 in 1:5000 scale
Field verification
Validation by CLUVA team
Feedback from CLUVA task 2.2 European team
Validation by stakeholders
Final map production
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Kumelachew Yeshitela
Slide 10
UMT mapping of the Transect
UMT of Transect Buffer
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Minimum buffering distance
from the transect line is 1.5 km
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239 Km2 mapped (46% of the
city)
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32 different UMTs are mapped
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Minimum threshold used for
digitization is 1000 m2 (to
include important features)
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North-south distance = 28 km
East-west distance = 9 km
Kumelachew Yeshitela
Slide 11
Statistical summaries result for the 32 UMTs (Unit in hectare)
UMT TYPE
Airport (52)
Train station (55)
Major road corridors (51) (>= 15m width)
Bus terminal (54)
Education (81)
Medical (82)
Religious site (83)
Energy Prod. & Distr. (61)
Refuse disposal, including landfill (63)
Cemetery (64)
Bare land (110)
Formal shopping area (91)
Open market (92)
Mixed formal and open (93)
Field Crop (11)
Vegetable farm (21)
Grass Land (12)
Riverine (23)
Mixed Forest (22)
Park (41)
Stadium and festival site (42)
Mineral workings and quarries (31)
Condominium & Multi-Story (71)
Villa & Single story stone/concrete (72)
Mud/Wood construction (73)
Mixed (71,72 & 73)
Manufacturing (101)
Office (102)
Storage & Distribution (103)
Garage (104)
Mixed (101,102,103 & 104)
Hotel (44)
State house (84)?
COUNT
MIN_AREA MAX_AREA
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1
112.03
7.25
4
104
23
81
6
2
15
134
27
5
11
58
70
43
23
70
13
15
11
72
150
356
3
93
127
44
36
4
15
2
0.84
0.15
0.13
0.13
0.81
28.84
0.47
0.15
0.18
0.60
0.17
0.16
0.11
0.14
0.23
0.27
0.44
0.93
1.42
0.19
0.19
0.13
0.35
0.19
0.14
0.28
0.12
2.02
0.35
14.10
AVE_AREA SUM_ARE SD_AREA VAR_AREA
A
164.65
138.34
276.68
37.21
1384.71
7.25
7.25
7.25
0.00
0.00
1.86
29.37
29.15
15.24
21.06
57.58
34.28
157.86
19.91
16.23
9.31
887.05
28.94
86.52
276.67
1196.72
10.89
28.59
95.13
40.81
227.18
411.90
13.18
71.07
42.75
43.85
17.38
21.50
24.72
28.27
1.24
3.65
4.60
2.60
5.71
43.21
9.08
11.85
3.63
4.51
3.51
71.18
4.72
5.59
31.42
42.84
3.32
5.46
23.76
5.98
20.15
15.53
4.93
9.04
6.06
4.95
3.25
10.89
5.06
21.18
4.96
379.86
105.73
210.75
34.28
86.41
136.17
1588.04
98.07
22.56
38.65
4128.33
330.41
240.49
722.63
2998.93
43.10
81.87
261.33
430.68
3021.83
5527.00
14.79
840.33
769.88
217.75
116.86
43.54
75.89
42.37
0.44
4.85
7.01
2.62
7.97
20.32
9.26
25.65
4.51
6.67
3.26
177.54
6.23
14.94
68.10
160.36
3.48
7.14
25.89
8.67
34.11
30.08
7.16
14.41
8.17
8.79
4.25
9.80
6.63
10.02
0.20
23.50
49.18
6.88
63.48
412.95
85.78
657.69
20.37
44.45
10.60
31518.92
38.81
223.31
4637.87
25715.13
12.14
50.93
670.11
75.23
1163.29
904.66
51.26
207.61
66.77
77.35
18.06
95.96
44.01
100.33
Legend
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Field Crop
44
Hotel
71
Condominium &
Multi-Story
84
State house
104
Garage
101
Manufacturing
81
Education
12
Grass Land
21
Vegetable Farm
52
Airport
72
Villa & Single story
stone/concreete
91
Formal shoping area
105
Mixed (101,102,103 & 104)
102
Office
82
Medical
41
Park
22
Mixed Forest
54
Bus terminal
73
Mud/Wood
construction
92
Open market
110
Bare Land
103
Storage & Distribution
61
Energy Prod. &
Distr.
42
Stadium and
festival site
23
Riverine
55
Train station
74
Mixed (71,72 & 73)
93
Mixed formal and open
Religious Site
63
Refuse disposal,
including landfill
64
Cemetery
31
Mineral workings
and quarries
83
Land use plan in 2006 and land cover 2011
Land use
Plan
(2006)
Land
cover
(2011)
Contribution to D2.6 International evidence of the ecosystem
services of urban green infrastructure in different climate zone
Upper catchment forest area rehabilitation project
Aesthetic;
Spiritual;
recreation;
education
Addis Ababa River banks Rehabilitation Project
Aesthetic;
recreational
Medicinal plant garden project
Aesthetic;
spiritual;
recreation;
education
National Park Development and Indigenous
Vegetation Reintroduction Project at Mt. Entoto
Aesthetic;
spiritual;
recreation;
education
Development of the Gullele Botanic Garden
Gullele Botanic Garden
Aesthetic;
spiritual;
recreation;
education
Slide 15
Task 2.2 activities in progress
17/07/2015
Kumelachew Yeshitela
UMT mapping based on 2011 aerial photo of Addis
• Purpose of aerial photo :Real Property Registration and Land Info. (Cadastre)
System
• -Areal photo and mapping by Hans Luftbild
• -Aerial photo Resolution 0.2m
• -Orthophoto Scale 1:2,000 (0.2m Ground sampling resolution)
• -Total number of Aerial photos 482, photo physical format 104mm by 68.4mm
Photo resolution 7.2 µm
• -Color RGB & NIR
• -Image Geometry Accuracy <+/- 2 µm
• -Flight height 2778m
• -Forward and Side overlap 60% and 30% respectively
• - GCP accuracy +/- 5cm in X,Y and Z, 150 points used.
28.03.2012
Kumelachew Yeshitela
Slide 17
Land cover analysis of UMTs
• Land cover analysis of UMTs
• Satellite image based analysis of land cover
17/07/2015
Kumelachew Yeshitela
Slide 18
Land cover types of Green areas of Addis Ababa
Mixed Forest
Reverine vegetation
Grassland
Field Crop
Vegetable Farm
Recreation Park
Qauarry mining
Religeous/Cemetry
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Kumelachew Yeshitela
Bareland
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Task 2.2 Activities in plan
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Kumelachew Yeshitela
• Discussion and agreement with stakeholders on UMT
classification
• Green infrastructure mapping based on UMTs
• Land use mapping based on UMTs
• Identification of threats and opportunities to green
infrastructure
• Assessing Ecosystem Services
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Kumelachew Yeshitela
Slide 21
I THANK YOU
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Kumelachew Yeshitela
Slide 12
(Indigenous) Tree
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Guy Weets
Slide 23
Eucalyptus plantation
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Slide 24
Shrub/Bush
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Slide 25
Grass
Vegetable farm
Field crop
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Slide 26