(Combretocarpus rotundatus), gerunggang (Cratoxylum glaucum), and asam-asam
(Swintonia sp.). At this location, GWL was monitored inside and outside the canal
blocking. A number of pipes (in total of 39 points) were installed perpendicular to
the canal and the distance of each pipe was 10 m.
Similar to location #1, a year following the canal blocking establishment, the
water level did not significantly differ inside and outside the canal blockings.
However, the canal blockings were not able to keep the water table stable. The
water table condition from July to December 2018 is presented in Fig. 21.6.
-120
-100
-80
-60
-40
-20
0
20
0
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
)
m
c
(
l
e
v
e
l
r
e
t
a
W
Point of observaƟon
Ground water level at 0.6 km from the first canal blocking
(km. 25)
18-Jul-18
30-Jul-18
16-Agu-18
26-Sep-18
26 Okt 2018
26-Nov
28 Des 18
-120
-100
-80
-60
-40
-20
0
0
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
)
m
c
(
l
e
v
e
l
r
e
t
a
W
Point of observaƟon
Ground water level at 1.8 km from the first canal blocking
(km. 25)
18-Jul-18
30-Jul-18
16 Aug 2018
26-Sep-18
26 Okt 2018
26-Nov-18
28 Des 18
b
a
Fig. 21.5 Water level condition from July to December 2018, at the (a) 0.6 km and (b) 1.8 km of
the first canal blocking
21 Peatland Restoration in Central Kalimantan by Rewetting and Rehabilitation with. . .
601