Geoscience Reference
In-Depth Information
Table 1. Ca
2+
concentration in source area of runoff and stream during storm event
on August 21-22, 2001.
Ca
2+
(mg/l) Mean
±
SD (n)
Stream Ca
2+
(mg/l)
Sources of runoff
Baseflow
1. Near surface riparian
4
.
81
1
.
74 (8)a
8.37
±
2. Deep riparian groundwater
7
.
99
2
.
81 (12)b
±
3. Hillslope soil water
0
.
74
0
.
67 (20)c
±
2 h after started
1. Near surface riparian
4
.
65
±
1
.
72 (8)a
7.18
2. Deep riparian groundwater
7
.
79
±
2
.
67 (12)b
3. Hillslope soil water
0
.
78
±
0
.
71 (16)c
1.5 h after peak
1. Near surface riparian
4
.
86
±
1
.
70 (8)a
4.79
2. Deep riparian groundwater
8
.
13
±
2
.
81 (12)b
3. Hillslope soil water
0
.
70
±
0
.
26 (16)c
Storm end
1. Near surface riparian
4
.
68
±
1
.
68 (8)a
4.56
2. Deep riparian groundwater
8
.
30
±
2
.
74 (12)b
3. Hillslope soil water
0
.
66
±
0
.
61 (23)c
Post storm
1. Near surface riparian
4
.
75
±
1
.
72 (8)a
7.37
2. Deep riparian groundwater
8
.
50
±
3
.
54 (12)b
3. Hillslope soil water
0
.
73
±
20
.
62 (23)c
Mean values in the same column with the same letter are not significantly different based
on one-way ANOVA (
P<
0
.
0001) and multiple comparison tests (
α
=0
.
05, Tukey). SD:
standard deviation;
n
: number of data.
20
6
18
Ca
2+
5
16
14
4
12
10
3
Total discha
rge
8
2
6
4
1
2
0
0
August 2 0
2 1
2 2
2 3
Fig. 2. Ca
2+
concentration across the hydrograph during storm event on August 21-22,
2001. NSR: near surface riparian; DRG: deep riparian; groundwater and HSW: hillslope
soil water.
