! "# $%&’’
% % (" " %$ )*+
% , "( " %" "
" %’
- % " * %
( ( % * % % ( %
)
./
.0
+ )1
./
23+ $
(" "% ( 4 (" ("
" ’
4/11/06 4/13/06 4/15/06 4/17/06 4/19/06
DOC (mgC L
-1
), C:N ratio, Q (L s
-1
)
0
2
4
6
8
10
12
14
Δ
14
C (permil)
-150
-100
-50
0
50
100
150
δ
13
C (permil)
-29.0
-28.5
-28.0
-27.5
-27.0
-26.5
-26.0
DOC
Δ14C
C:N
δ13C
! !
N
Image courtesy Google Earth
-" " " %" % %
% "% " - 15
!" #$%
! & ’( !) & *+*
& ,- %
. & /01
2 3 4
-$2%
! & ( !) & **
& 4% %
. & 0 5 6
2 3 4
Image courtesy USFS
7- 8 - 9
(" * ( "
% * % % " 4 3 "" "% 4
3 % " " " 3 "%’
C:N ratio
10 20 30 40 50
Depth (cm)
0
20
40
60
80
100
120
Soil
Rain
Macropore
Matrix water
Grass
δ13C (permil)
-30 -28 -26 -24
Δ14C (permil)
-200 -100 0 100 200
SUVA (L mgC
-1
m
-1
)
1 2 3 4 5
0 5 10 15 20 25
Depth (cm)
0
20
40
60
80
100
120
140
Soil
Throughfall
Macropore
Matrix water
% lignin (from NMR mixing model)
0 5 10 15 20 25 30 35 40
A B C D
E
F G H
** * ***
**
*
**
*
ns
ns
ns
ns
ns
-
1
! -
64
%
!" -
7
%
!8 % "
( " %
) 9 .:+ "(
)! 7;’<=, !! 7;’<., !!!
7;’<<.+
-"
.0
* " ("
% % % >" (" " 3
" % * % "’
Soil/DOC chemistry
Old/recalcitrant Young/rich/labile
Depth
DOC
Reactive
soil pool
RSP
Soil
DOC
Mineral/SOM
surface
Labile pool
CO
2
Soil/DOC chemistry
Old/recalcitrant Young/rich/labile
Depth
DOC
Reactive
soil pool
RSP
Soil
DOC
Mineral/SOM
surface
Labile pool
CO
2
Exchange occurs
within micropores
w/ net sorption
Water flux
primarily in
macropores
.+ ?>" %
* (" " ’
@+ A ""
% % "%’
.+ -" "% 4 % *
" (" "
@+ * "% % (" ( "
Soil DOC chemistry
Old/recalcitrant Young/rich/labile
Depth
Seasonal shift
in chemistry
:- -
0 #
-
8 -
2;
* "% "
% 4 3
" B4
3’
δ
13
C (permil)
-30
-29
-28
-27
-26
-25
-24
C/N ratio
2
4
6
8
10
12
14
Δ
14
C (permil)
-200
-100
0
100
200
SUVA
1
2
3
4
5
Q (L s
-1
)
0.01 0.1 1 10
DIC (mgC L
-1
)
0
2
4
6
8
10
12
December
April
2006
2005
Q (L s
-1
)
0.01 0.1 1 10
DOC (mgC L
-1
)
0
2
4
6
8
10
12
Discharge (L s
-1
)
0.01 0.1 1 10 100
Pressure head (m)
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
HY2005
HY2006
:
-
-
#
-
8
-
%
/ C (
%# .+ :- -, @+
# -,
/+ 8 -
6%
"(
%
12/1/05 1/1/06 2/1/06 3/1/06 4/1/06 5/1/06 6/1/06
Total head (m)
53.0
53.5
54.0
54.5
55.0
Discharge (mm hr
-1
)
0.01
0.1
1
Ground
surface
8
8
D8
-" "
% ’ "
" ("
"
2/19/05 2/20/05 2/21/05 2/22/05 2/23/05
Discharge (mm hr
-1
)
0.0
0.2
0.4
0.6
0.8
1.0
Vol. water content (m
3
m
-3
)
35
40
45
50
55
60
DOC (mgC L
-1
)
0
1
2
3
4
5
Q (L s
-1
)
0 5 10 15 20 25 30
DOC (ppm)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
DOC
VWC
MUN
stream Q
M1 pipe Q
-
- )>’
1 .<%+ (
#$
- )>’ 3.
E+
( "
M1 pipe gauging station
MUN stream gauging station
%
2; 7 6 9
F-" "" B
(" >
% (
% 4
F )G0< %
+ % " 3.
F"( (" %
% 6
-%0 8 % H 8 "
2 8’ I ( " * ( ) "+ *
3% )+ " " " 6 H *
1 )8 + H" " 2 )+ *
A ./ ) *+ I" " D
" .0 3 3" %
" ?’ %6 ’ *642 2’ A ’’ 1’ %’
Q (mm hr
-1
)
0.001 0.01 0.1 1 10
DOC (mgC L
-1
)
0
2
4
6
M1
MUN
Q (mm hr
-1
)
0.001 0.01 0.1 1 10
0
2
4
6
1st
storm
DIC (mgC L
-1
)
Q (mm hr
-1
)
0.001 0.01 0.1 1 10
δ
13
C (permil)
-28
-27
-26
-25
-24
-23
-22
Q (mm hr
-1
)
0.001 0.01 0.1 1 10
SUVA
0
2
4
6
M1
MUN
Discharge (L s
-1
)
0 5 10 15 20 25 30 35
DOC (mgC L
-1
)
2
4
6
8
10
12
δ
13
C (permil)
-29.2
-29.0
-28.8
-28.6
-28.4
-28.2
-28.0
-27.8
-27.6
-27.4
DOC
δ13C
1/1/05 2/1/05 3/1/05 4/1/05 5/1/05 6/1/05
Pressure head (m)
0.0
0.5
1.0
1.5
Discharge (mm hr
-1
)
0.01
0.1
1
10
VWC (m
3
m
-3
)
30
40
50
Hollow piezometer
z = 1.8 m
M1
MUN
Hillslope VWC at 10 cm
Peak h still 20cm below
ground surface