Table 19.2. Relationship between annual Q and
P, and between annual EA
and P for a group of catchments selected from all over
the world
N
.....
0Q == a+bP
EA
== a + b
P
Location
Catchment Vegetation
Years
a
b
rl
a
b
rl
P (mm)
P/ET
Reference
Queensland, Australia
Open woodland
5
57
- 0.01 0.00"'
- 57
1.01 0.96"
702
0.4·
Western Australia
41.
/arrah forest
7
- 16
0.02 0.34"'
16
0.98
1.00'"
880
8
Prades. Spain
Avi c
Holm oak forest
13
- 32
0.13 0.42'
32
0.87 0.97' "
547
0.6 b
This study
Prades, Spain
Teula
Holm oak forest
8
-47
0.19 0.78 "
47
0.81 0.99' .,
566
0.6 b
This study
alifornia. USA
B
Oak woodland
10
- 202
0.41 0.90' ..
202
0.59
0.96'"
623
0.5'
2
Mo ntseny. Spain
TMO
70% Holm oak forest
5
- 186
0.56 0.86'
186
0.44
0.77'
1004
1.1
This st udy
France
Fagus sylvatica
7
15
0.67 0.94'"
- 15
0.33
0.79" 1849
3
Montseny. Spain
TM9
Holm
oak forest
II
- 326
0.72 0.92'"
326
0.28 0.62 "
891
1.0
This study
France
Picea exce/sa
7
- 75
0.74 0.92'"
75
0.26
0.58
'
1944
3
alifornia.
USA
A
Oak woodland
10
- 359
0.77
0.92'"
359
0.23 0.55 '
623
0.5'
2
UK
Severn
68% Forest
8
- 381
0.91
0.96'"
381
0.09 0. 15"' 2510
4
0'
en
I.I d
'"
alifornia. USA
Tomales
Variate
100
- 284
0.92 0.95" •
862
7
'"0
:s:!
Greece
7
Abies cepllQ/onica
4
- 646
0.92 0.92 '
646
0.08 0.07"'
1615
5
::I'
12Hubbard Brook.
»
0.17"'
2.5 d
::I
New Hampshire, USA
6
Hardwood forest
24
- 400
0.91
0.96'"
400
0.09
1403
6
::I
'"
Greece
5
Abies cephalonica
4
- 745
1.06 0.94'
745
- 0.06 0.05"'
1615
5
:>:'i .
Reference: I. Prebble and Stirk (1988); 2, Lewis (1968); 3. Durand (1989); 4. Hudson (1988); 5. Nakos and Vouz.aras (1988); 6. Likens et at. (1977). Federer et al.
.,
' "
::I
(1990); 7, Fischer et al. (t
996). Stoneman (1993).
p..
ns. not significant; - P
< 0.05; •• P
< 0.0 I; ••• P
< 0.00 I.
»
~
• ET measured with a class A pan-evaporimeter.
2.
b Er estimated by the Samani-Hargreaves method (Samani and Hargreaves 1985. quoted in McKenney and Rosenberg (1993).
tr:I
en
, ET estimated with the Penmann equation.
"
' "
...
d ET estimated with the Thornwaite equation.
...
(1)..
P, and between annual EA
and P for a group of catchments selected from all over
the world
N
.....
0Q == a+bP
EA
== a + b
P
Location
Catchment Vegetation
Years
a
b
rl
a
b
rl
P (mm)
P/ET
Reference
Queensland, Australia
Open woodland
5
57
- 0.01 0.00"'
- 57
1.01 0.96"
702
0.4·
Western Australia
41.
/arrah forest
7
- 16
0.02 0.34"'
16
0.98
1.00'"
880
8
Prades. Spain
Avi c
Holm oak forest
13
- 32
0.13 0.42'
32
0.87 0.97' "
547
0.6 b
This study
Prades, Spain
Teula
Holm oak forest
8
-47
0.19 0.78 "
47
0.81 0.99' .,
566
0.6 b
This study
alifornia. USA
B
Oak woodland
10
- 202
0.41 0.90' ..
202
0.59
0.96'"
623
0.5'
2
Mo ntseny. Spain
TMO
70% Holm oak forest
5
- 186
0.56 0.86'
186
0.44
0.77'
1004
1.1
This st udy
France
Fagus sylvatica
7
15
0.67 0.94'"
- 15
0.33
0.79" 1849
3
Montseny. Spain
TM9
Holm
oak forest
II
- 326
0.72 0.92'"
326
0.28 0.62 "
891
1.0
This study
France
Picea exce/sa
7
- 75
0.74 0.92'"
75
0.26
0.58
'
1944
3
alifornia.
USA
A
Oak woodland
10
- 359
0.77
0.92'"
359
0.23 0.55 '
623
0.5'
2
UK
Severn
68% Forest
8
- 381
0.91
0.96'"
381
0.09 0. 15"' 2510
4
0'
en
I.I d
'"
alifornia. USA
Tomales
Variate
100
- 284
0.92 0.95" •
862
7
'"0
:s:!
Greece
7
Abies cepllQ/onica
4
- 646
0.92 0.92 '
646
0.08 0.07"'
1615
5
::I'
12Hubbard Brook.
»
0.17"'
2.5 d
::I
New Hampshire, USA
6
Hardwood forest
24
- 400
0.91
0.96'"
400
0.09
1403
6
::I
'"
Greece
5
Abies cephalonica
4
- 745
1.06 0.94'
745
- 0.06 0.05"'
1615
5
:>:'i .
Reference: I. Prebble and Stirk (1988); 2, Lewis (1968); 3. Durand (1989); 4. Hudson (1988); 5. Nakos and Vouz.aras (1988); 6. Likens et at. (1977). Federer et al.
.,
' "
::I
(1990); 7, Fischer et al. (t
996). Stoneman (1993).
p..
ns. not significant; - P
< 0.05; •• P
< 0.0 I; ••• P
< 0.00 I.
»
~
• ET measured with a class A pan-evaporimeter.
2.
b Er estimated by the Samani-Hargreaves method (Samani and Hargreaves 1985. quoted in McKenney and Rosenberg (1993).
tr:I
en
, ET estimated with the Penmann equation.
"
' "
...
d ET estimated with the Thornwaite equation.
...
(1)..