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Tazaki,Kazue. |
Japanese Islands are covered with weathered volcanic rocks and soils. Terraced rice field are located in green-tuff areas which are very fertile but where landslides occur associated to strong earthquakes. The Xray diffraction and X-ray fluorescence analyses of the soils in landslide area identified predominant smectite and Mg, Al, Si, K, Ti, Mn and Fe are main components. The rice leaf showed that S, Cl, K and Ca play important roles for nutrients in the area. Drainpipe systems have set up in the green- tuff areas to reduce the risks of landslides. Reddish brown microbial mats inhabited bacteria and diatom in the drainpipe outlets. The microbial mats are rich in Fe and PO4(3-). The iron bacteria in the ground water have a high metabolic rate suggesting... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Green-tuff; Terraced rice field; Landslide; Microbial materials. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000400010 |
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Le Bivic, Rejanne; Allemand, Pascal; Quiquerez, Amelie; Delacourt, Christophe. |
Over the last 10 years, the accessibility of high spatial resolution remote sensing images has strongly increased. These images are available in ortho-rectified format which do not necessitate any further geometrical processing to be analyzed. In parallel, image correlation software has become more efficient and friendly. In this paper, image correlation methods are tested to evaluate their potential and limitations to measure the surface displacements in a complex case of a landslide located in a tropical environment. This studied landslide, called "Mare a Poule d'Eau", is located in the Salazie erosion watershed in Reunion Island (France). This landslide is monitored daily by a DGPS station which registers the south-north displacements. Two pairs of... |
Tipo: Text |
Palavras-chave: SPOT-5; Image correlation; Landslide; Reunion Island. |
Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00638/75042/75670.pdf |
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