Land Cover Changes Between 1968 and 2003 In Cai Nuoc,Ca Mau Peninsula,Vietnam |
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Authors: | T?N?K?D?Binhvnnvn" title="pvpialy@hcm Email author" target="_blank">vnnvn" itemprop="email" data-track="click" data-track-action="Email author" data-track-label="">Email author Nico?Vromant Nguyen?Thanh?Hung Luc?Hens E?K?Boon |
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Institution: | (1) Department of Geography Information System and Remote Sensing, National Centre for Natural Science and Technology, 1 Mac Dinh Chi, District 1, Ho Chi Minh, Vietnam;(2) Laboratory of Aquatic Ecology, Katholieke Universiteit Leuven, Charles de Bériotstraat 32, B-3000 Leuven, Belgium;(3) Human Ecology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium |
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Abstract: | Since 2000, the shrimp industry expands at a fast rate in the coastal areas of the Mekong Delta, Vietnam. Shrimp farming is
known for its negative impact on the coastal environment. However, other human interventions like agriculture and urbanization
also deteriorate the coastal environment. The land cover changes between 1968 and 2003 were determined and analyzed for the
Cai Nuoc district, Ca Mau Province, Vietnam, using photos from 1968, 1992 (aerial photographs), 1997/98 (Spot) and 2003 (Landsat).
It was clear that the district underwent serious land cover changes: deforestation between 1968 and 1992, with a simultaneous
increase in rice land; a rapid decline in rice acreage from 1997 onwards, and, simultaneously, a blitz-increase in shrimp
farming area. The forest area declined by 75% between 1968 and 2003. About 40% of this loss could be attributed to shrimp
farming, while the remaining 60% was attributed to needs for agricultural land. Still, at present, shrimp farming is the major
source of mangrove loss in the district. In 1999 shrimp farms covered 6.374 ha, in 2000 they covered 61.049 ha of the Cai
Nuoc area. The swap from rice cultivation to shrimp farming was most-probably driven by households’ hopes for a higher income.
It must be feared that the shrimp industry will have a negative impact on the environment (e.g. salinization) and on the livelihood
of the district’s households. In 1968 saline water covered 219.9 km2, in 1992, 1997/98 and 2003 the saline surface water area covered 92.4, 135.2 and 835.0 km2, respectively.
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Keywords: | mangrove land cover change remote sensing shrimp Vietnam |
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