2013 International SWAT Conference & Workshops - Toulouse, France July 15-19, 2013, Toulouse Using SWAT to understand the eco-hydrological response to droughts of a dry Mediterranean agro-forested catchment, southern Portugal Juliana Santos, Júlio Lima, Madalena Moreira, Elsa Sampaio, João Pedro Nunes Centre for Environmental and Marine Studies University of Aveiro (Portugal) Institute of Mediterranean Agricultural and Environmental Sciences University of Évora (Portugal) GOVERNMENT OF THE PORTUGUESE REPUBLIC ERLAND Project
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Using SWAT to understand the eco-hydrological …agro-forested catchment, southern Portugal Juliana Santos, Júlio Lima, Madalena Moreira, Elsa Sampaio, João Pedro Nunes Centre for
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2013 International SWAT Conference & Workshops - Toulouse, France July 15-19, 2013, Toulouse
Using SWAT to understand the eco-hydrological response to droughts of a dry Mediterranean agro-forested catchment, southern Portugal
Juliana Santos, Júlio Lima, Madalena Moreira, Elsa Sampaio, João Pedro Nunes
Centre for Environmental and Marine Studies University of Aveiro (Portugal)
Institute of Mediterranean Agricultural and Environmental Sciences University of Évora (Portugal)
GOVERNMENT OF THE PORTUGUESE REPUBLIC
ERLAND Project
Guadalupe
Climate change is expected to increase aridity in the Mediterranean rim of Europe, leading to concerns on consequences for water resources availability in a region already under water stress
- Understanding how streamflow availability and vegetation growth have responded to past droughts
- How this might reflect future water availability conditions
Introduction
Study Site: Guadalupe
GUADALUPE:
Agro-forested catchment
Area: 446 ha
Elevation: 260 to 380 meters
Mediterranean inland climate with hot and dry summers and mild winters:
Mean annual precipitation (1973-2012): 533 mm
Mean annual temperature: 15.5ºC
Urban: 0.3 %
Annual Crops: 10.7 %
Olive groves: 2.6 %
Pasture: 5.4 %
Cork/holm oak (>50%) + pasture: 52.9 %
Cork/holm oak (30-50%) + pasture: 28.1 %
Representative of the dry regions of southern Portugal
0
200
400
600
800
1000
1200Total Yearly Rainfall (mm)
The catchment is representative of the streamflow sources for a network of reservoirs in the Évora region which provide water for irrigation and hydroelectric power generation
Hidrometric Station
Guadalupe
Study Site: Guadalupe
Évora city
Discharge:
0
2
4
6
8
10
12
14
16
18
Set/12 Out/12 Nov/12 Dez/12 Jan/13 Fev/13 Mar/13
Flo
w (
mm
)
Date
Flow(stream flow) mm
Soil Moisture:
0
10
20
30
40
50
600
100
200
300
400
500
600
Mai/11 Set/11 Jan/12 Mai/12 Set/12 Jan/13
PP
(m
m)
SWC
(m
m)
Date
SWC_mm
PP_mm
Data Collection:
Study Site: Guadalupe
Climate Data: • Rainfall • Wind Speed • Solar Radiation • Temperature • Relative Humidity
Hidrometric Station
Guadalupe
Évora - Mitra Évora - Cidade
Évora – Cidade Évora
0
200
400
600
800
1000
1200
19
73
19
74
19
75
19
76
19
77
19
78
19
79
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80
19
81
19
82
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83
19
84
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85
19
86
19
87
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88
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89
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90
19
91
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92
19
93
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94
19
95
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96
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97
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98
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99
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00
20
01
20
02
20
03
20
04
20
05
20
06
20
07
20
08
20
09
20
10
20
11
Total Annual Rainfall (mm)
Mean = 533 mm
Data Collection:
Climate stations
Study Site: Guadalupe
Évora
2 Eddy covariance flux towers: Carbo Euro Flux 1999-2008