Chapter 19
Principles of Hydrological Management
of Tropical Peatland
Hidenori Takahashi, Koichi Yamamoto, and Takashi Inoue
Abstract Key for peatland management is a deep understanding of the hydrological
processes and phenomena in peatland such as water flow in the biosphere, leaf, stem,
and root. Relationships between groundwater level (GWL), rainfall, and evapotranspiration are also the key elements. Soil moisture near the peatland surface is clearly
affected by the vegetation types in peatland. An important indicator of peatland
hydrology, i.e. hydraulic conductivity, is theoretically explained in this paper,
including its behavior.
Horizontal groundwater flow in a saturated peat layer is caused by horizontal
difference of water potential, for which the understanding of groundwater flow,
speed, and direction were measured. The canal construction in peatland is the most
typical disturbance in a peatland ecosystem. The groundwater flow near the canal in
the tropical peatland of Central Kalimantan suggested the presence of high permeable layers in the peat soil near the weir.
Keywords Rain · Evapotranspiration · Hydraulic conductivity · Groundwater flow
velocimeter · Permeable layers
H. Takahashi (*)
Hokkaido Institute of Hydro-climate, Sapporo, Japan
e-mail: nana77hihc@ybb.ne.jp
K. Yamamoto
Graduate School of Sciences and Technology for Innovation, Yamaguchi University,
Yamaguchi, Japan
e-mail: k_yama@yamaguchi-u.ac.jp
T. Inoue
Reserach Faculty of Agriculture, Hokkaido University, Sapporo, Japan
e-mail: tino@env.agr.hokudai.ac.jp
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
M. Osaki et al. (eds.), Tropical Peatland Eco-management,
https://doi.org/10.1007/978-981-33-4654-3_19
537
Principles of Hydrological Management
of Tropical Peatland
Hidenori Takahashi, Koichi Yamamoto, and Takashi Inoue
Abstract Key for peatland management is a deep understanding of the hydrological
processes and phenomena in peatland such as water flow in the biosphere, leaf, stem,
and root. Relationships between groundwater level (GWL), rainfall, and evapotranspiration are also the key elements. Soil moisture near the peatland surface is clearly
affected by the vegetation types in peatland. An important indicator of peatland
hydrology, i.e. hydraulic conductivity, is theoretically explained in this paper,
including its behavior.
Horizontal groundwater flow in a saturated peat layer is caused by horizontal
difference of water potential, for which the understanding of groundwater flow,
speed, and direction were measured. The canal construction in peatland is the most
typical disturbance in a peatland ecosystem. The groundwater flow near the canal in
the tropical peatland of Central Kalimantan suggested the presence of high permeable layers in the peat soil near the weir.
Keywords Rain · Evapotranspiration · Hydraulic conductivity · Groundwater flow
velocimeter · Permeable layers
H. Takahashi (*)
Hokkaido Institute of Hydro-climate, Sapporo, Japan
e-mail: nana77hihc@ybb.ne.jp
K. Yamamoto
Graduate School of Sciences and Technology for Innovation, Yamaguchi University,
Yamaguchi, Japan
e-mail: k_yama@yamaguchi-u.ac.jp
T. Inoue
Reserach Faculty of Agriculture, Hokkaido University, Sapporo, Japan
e-mail: tino@env.agr.hokudai.ac.jp
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
M. Osaki et al. (eds.), Tropical Peatland Eco-management,
https://doi.org/10.1007/978-981-33-4654-3_19
537