Ethnoscape of Riverine Society in Bintulu Division [Yumi Kato, et al.]

Ethnoscape of Riverine Society in Bintulu Division Yumi Kato(The Hakubi Project /Center for Southeast Asian Studies, Kyoto University) Hiromitsu Samejima (Center for Southeast Asian Studies, Kyoto University) Ryoji Soda(Graduate School of Literature and Human Sciences, Osaka City University) Motomitsu Uchibori (Faculty of Liberal Arts, The Open University of Japan) Katsumi Okuno(College of Liberal Arts, J.F.Oberlin University) Noboru Ishikawa (Center for Southeast Asian Studies, Kyoto University) Introduction  The study site of this project is the riverine areas of the Kemena and Tatau Rivers in the Bintulu Division. This article provides an overview of the ethnic groups living along those rivers. However, the details of these people, their backgrounds, and their inter-ethnic […]

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River Water Quality and Landscape in the Kumena and Tatau Basins, Sarawak, Malaysia [Keitaro Fukushima]

River Water Quality and Landscape in the Kumena and Tatau Basins, Sarawak, Malaysia Keitaro Fukushima  (Field Science Education and Research Center, Kyoto University)  River water quality is a very useful indicator of upstream terrestrial environment including land use, geology, lifestyle, development of infrastructure, and so forth. For example, the concentrations of calcium (Ca2+), magnesium (Mg2+) ions and dissolved silica (Si) are mainly controlled by underlying bedrock geology; nitrogen (N) and phosphorus (P) concentratios reflect land use such as agriculture and urbanization; and chloride ion (Cl–) concentration is likely proportional to the distance from the sea. Mines, factories, and livestock facilities can discharge high concentrations of N, P, certain metals, and […]

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