288
Anna Avila, Juan Bellot and Josep Pinol
20.4 Net Outputs
Net element outputs were computed as the difference between annual outputs and annual inputs. Inputs for the different elements had a similar behaviour, with significant direct relationships between annual element deposition and annual precipitation, except for Ca 2 + due to its higher deposition
in years with big red rain events, very rich in Ca 2 + concentrations (Chap. 14).
a)
Net export TM9 1984-94
30
,
I
".
•
~
. "
20
"
..... to
/
.r:
.....
"
'"
,;,t;
.,..
. .
z
10
/
.~
.. y _ 1.2+0.052.; ,~.98
0
0
ZOO
400
600
800
20 _
-'---_,L-_ _
y . -3.1+0,039.; ,-0.96 n-6
..
~
10
. .
.r.
.....
'"
.,.
..
0
u
•
•
•
•
• 87-.88
• 90-91
b)
>.
..... to
.r: .....
'"
,;,t;
U
>.
..... to
.r. .....
~
VI
Net export TM9 1984-94
15 I
I
I
10 i
/
. .,.
I
/
"
/
•
0 .,
"
. "
." ••
- 5 j ...
r
-10 I
y _ -7 .6+0.03.; ,· 0.96
I
0
ZOO
400
600
800
10
~
- ' - - - -
/
.1'
5
"
/
"
.,..
0
' .
."
-5..
88 - 89
84-85
Y _ ~.8+O.03.; ,- 0.96
-10 +-----,---~----~----_+
o
- '0
I
I
I
0
200
400
600
800
200
400
600
Annual runoff (mmlyr)
Annual runoff (mmlyr)
c)
O +---~----~--~----T
-2
••
.
-.. .
~68 • • • ~.-l
L
y • -4.Z-O.OO4.; ,. 0.52 (n.s)
- 10
I
I
z
o
200
400
600
800
Annual runoff (mmlyr)
800
Fig. 20.1. Net exports at Montseny for a litophilic ions, b atmophilic ions, and c biophilic ions.
For Na +, Cl" and S, the estimated dry deposition contribution to net throughfall (0.4,0.6 and 1.3
kg ha- l year- l , respectively) has been added to their inputs in bulk deposition