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Stable Forest Cover under Increasing Populations of Swidden Cultivators in Central Laos: the Roles of Intrinsic Culture and Extrinsic Wildlife Trade Ecology and Society
Robichaud, William G; Biodiversity Research Centre, Department of Zoology, University of British Columbia; williamrobichaud@yahoo.com; Sinclair, Anthony R. E.; Biodiversity Research Centre, Department of Zoology, University of British Columbia; sinclair@zoology.ubc.ca; Odarkor-Lanquaye, Naa; Forest Sciences Centre, University of British Columbia; naalanquaye@hotmail.com; Klinkenberg, Brian; Department of Geography, University of British Columbia; brian@geog.ubc.ca.
Swidden agriculture, or shifting cultivation, is variously viewed as a great environmental threat or a sustainable system of land use. In Laos, swidden has long been considered the primary driver of forest loss nationwide, but the assessment is based exclusively on studies from the north of country, where deforestation is most severe. National policies to control swidden have percolated down to management of one of the largest nature reserves in the region, Nakai-Nam Theun National Protected Area (NNT NPA) in the Annamite Mountains of central Laos. In NNT NPA, swidden’s presumed unsustainability and deleterious impact on forest cover is an untested assumption. We tested it by methods of historical ecology, tracing the patterns of NNT’s...
Tipo: Peer-Reviewed Reports Palavras-chave: Annamite Mountains; Brou; Cuora trifasciata; Dalbergia; Deforestation; Historical ecology; Lao PDR; Manis; Nakai-Nam Theun; Nam Theun 2; Pangolin; Pseudorxy nghetinhensis; Saola; Sek; Shifting cultivation; Slash and burn; Sustainable agriculture; Swidden agriculture; Vietic.
Ano: 2009
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Impacts of Water Supply Changes on the Rice Market of Lao PDR: Stochastic Analysis of Supply and Demand Model AgEcon
Furuya, Jun; Meyer, Seth D..
Laotian rice producers in upland areas experience highly fluctuating yields and production and producers in wet season rice areas in the southern region face high price risk. This paper examines the exposure to risk of producers in both regions facing changes in water supplies. A supply and demand model of rice in Laos, considering water supply changes, is developed and stochastic elements are added to the model to represent uncertainty in climatic variables. Furthermore, the risks associated with price and production fluctuation are evaluated by using the differences between market and certainty equivalent prices. The results show that the coefficient of variation of production is higher in upland rice than wet and dry season rice, i.e., 0.3226, and if...
Tipo: Conference Paper or Presentation Palavras-chave: Water supply change; Rice supply and demand model; Stochastic model; Lao PDR; Q11; Q25; Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2006 URL: http://purl.umn.edu/25638
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