4. Atmospheric and Geologic Constraints
10
A)
+
Mbl)
0
~~~
- ';01
III
::I
!
'Q
....
~
0.1
0.02
10 B)
0
67
C)
0.02 -h-~-...,....-...,.......,e-.-,.....,..,..,.-----i
10
• • 0
~ • •
••
0.02 --h-,..,.,..-...,....-...,.........................,..,.-----i
1
10 20
Dissolved Silica (mg Si0 2
f1)
Figure 4.4. Relationships between residual (after sea-salt correction) concentrations of Mg
2+
(A), Ca
2+
(B), and Na+ (C) versus dissolved Si0 2 in watershed
streams draining coastal temperate forests at Cordillera de Piuchue, Chile (e);
Cordillera Pelada, Chile (0) ; and British Columbia, Canada (.). Lines indicate
statistically significant regressions . One extreme value was excluded from both
regressions A and B.
Conclusions
Our analyses focus on understanding broad-scale patterns in external
inputs of elements to coastal temperate rainforests (Figure 4.5). Our
results show important differences, as well as similarities, between forest
ecosystems of North and South America. Specifically, our results indicate
10
A)
+
Mbl)
0
~~~
- ';01
III
::I
!
'Q
....
~
0.1
0.02
10 B)
0
67
C)
0.02 -h-~-...,....-...,.......,e-.-,.....,..,..,.-----i
10
• • 0
~ • •
••
0.02 --h-,..,.,..-...,....-...,.........................,..,.-----i
1
10 20
Dissolved Silica (mg Si0 2
f1)
Figure 4.4. Relationships between residual (after sea-salt correction) concentrations of Mg
2+
(A), Ca
2+
(B), and Na+ (C) versus dissolved Si0 2 in watershed
streams draining coastal temperate forests at Cordillera de Piuchue, Chile (e);
Cordillera Pelada, Chile (0) ; and British Columbia, Canada (.). Lines indicate
statistically significant regressions . One extreme value was excluded from both
regressions A and B.
Conclusions
Our analyses focus on understanding broad-scale patterns in external
inputs of elements to coastal temperate rainforests (Figure 4.5). Our
results show important differences, as well as similarities, between forest
ecosystems of North and South America. Specifically, our results indicate