81件中 1~10件 (日付順)
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Anthropogenic Tropical Forests: Human–Nature Interfaces on the Plantation Frontier所収
著者:
Hon
Jason
Shibata
Shozo
The island of Borneo is regarded as one of the most biologically rich regions in the world, containing some of the oldest remaining tropical rainforests. However, it also suffers high levels of deforestation and degradation to meet the demands for timber extraction and agricultural activities. In Sarawak, areas designated as permanent forests...
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Anthropogenic Tropical Forests: Human–Nature Interfaces on the Plantation Frontier所収
著者:
Takeuchi
Yayoi
Soda
Ryoji
Diway
Bibian
In the traditional agricultural land-use pattern of the indigenous peoples of inland Sarawak, there are small areas of primary forests, referred to as a pulau or communally reserved forests (CRFs), which are customarily reserved by local communities. Here, we investigate the current condition and geographic distribution of CRFs in the human...
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Anthropogenic Tropical Forests所収
著者:
Hon
Jason
Rapid development in Bintulu has resulted in large-scale changes in land use, especially the conversion of forests into oil palm plantations and industrial tree plantations. Using high-resolution satellite imagery, we analysed land-cover types in the Kemena–Tubau–Lower Jelalong region of Sebauh subdistrict and classified them into nine major land...
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Anthropogenic Tropical Forests: Human–Nature Interfaces on the Plantation Frontier所収
著者:
Demies
Malcom
Koizumi
Miyako
Fujiki
Shogoro
With rapid deforestation and forest degradation ongoing in tropical regions, the maintenance of biodiversity and high biomass/carbon stocks can bring additional benefits to the sustainable management of natural forests along with sustainable timber production. However, the measures for improving the maintenance of biodiversity and high biomass are...
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Anthropogenic Tropical Forests: Human–Nature Interfaces on the Plantation Frontier所収
著者:
Hon
Jason
While Borneo is a global biodiversity hotspot, its species-rich natural rainforests have been degraded and deforested in the past few decades by unsustainable shifting agriculture, commercial logging and the rapid development of industrial tree and oil palm plantations. Populations of some wildlife species have decreased drastically due to...
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Anthropogenic Tropical Forests: Human–Nature Interfaces on the Plantation Frontier所収
著者:
Tokuchi
Naoko
Hon
Jason
Fukushima
Keitaro
The drastic transformation in land use from natural forest to acacia and oil palm plantations in tropical regions is an issue of some controversy. The influence of land-use change on nutrient cycling is not fully understood. In this case, stream water chemistry is one of the most useful indexes of the nutrient status of an ecosystem. We...
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Anthropogenic Tropical Forests: Human–Nature Interfaces on the Plantation Frontier所収
著者:
Fukushima
Keitaro
Tokuchi
Naoko
Hon
Jason
Kano
Yuichi
It is important to understand carbon (C) dynamics in terrestrial and coastal ecosystems in order to develop a strategy to control carbon dioxide effluxes. However, the factors determining concentrations of riverine carbon are still largely unknown, especially in Southeast Asia. We investigated the spatial distribution of dissolved and particulate...
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Anthropogenic Tropical Forests: Human–Nature Interfaces on the Plantation Frontier所収
著者:
Kato
Yumi
Langub
Jayl
Abdullah
Abdul Rashid
Soda
Ryoji
Uchibori
Motomitsu
Okuno
Katsumi
Ishikawa
Noboru
This chapter discusses the historical formation and current features of society in the Kemena and Tatau river basins in Bintulu, central Sarawak, where various ethnic groups live close together in a small area as a result of the historical migration of each group. We refer to previous studies and to interviews we conducted, mainly in 2011...
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Anthropogenic Tropical Forests: Human–Nature Interfaces on the Plantation Frontier所収
著者:
Kato
Yumi
Over the last few decades, the landscape of Borneo has drastically changed from primary forests to a mosaic of secondary forests and crop plantations, and more recently to the monocultures of single crop plantations. At the same time, livelihoods have become more linked to urban economies. To evaluate the effects of these changes on hunting...
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Anthropogenic Tropical Forests: Human–Nature Interfaces on the Plantation Frontier所収
著者:
Kano
Yuichi
Hon
Jason
Sulaiman,
Mohd Khairulazman
Aizu
Mitsuhiro
Noshita
Koji
The biodiversity of stream-dwelling fish and the effects of oil palm and acacia plantations on this biodiversity were evaluated by field research conducted in the Bintulu region of central Sarawak, Malaysia. A quantitative survey was conducted at 61 locations by electrofishing. These 61 locations included 16 sites in oil palm plantations, five...