season, it serves to provide a continuous supply of water to the bottom of the slope,
so that the GWL at the bottom does not drop below 40 cm.
The lower part of the slope is the foot of the peat dome and planted acacia trees. It
is clear from a comparison of the figures that in the upper slope, the GWL dropped
Fig. 3.30 Time course of rainfall and GWL at the upper area (9.5 m in elevation) in
the hydrobuffer zone
Fig. 3.31 Time course of rainfall and GWL at the lower gentle slope (5.9 m in elevation) in the
plantation area
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123
so that the GWL at the bottom does not drop below 40 cm.
The lower part of the slope is the foot of the peat dome and planted acacia trees. It
is clear from a comparison of the figures that in the upper slope, the GWL dropped
Fig. 3.30 Time course of rainfall and GWL at the upper area (9.5 m in elevation) in
the hydrobuffer zone
Fig. 3.31 Time course of rainfall and GWL at the lower gentle slope (5.9 m in elevation) in the
plantation area
3 Large-Scale Practice on Tropical Peatland Eco-Management
123