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Vinsamlegast notið þetta auðkenni þegar þið vitnið til verksins eða tengið í það: http://hdl.handle.net/1946/3303


Volcanic activity and environment. Impacts on agriculture and use of geological data to improve recovery processes


Volcanic eruptions are dramatic events that can significantly affect the livelihood of
surrounding populations, in particular since the fertility of volcanic soils results in
them often being used for agricultural purposes. Therefore, when volcanic crises
occur, the livelihood of farmers can be strongly affected. The actions taken both by
farmers and the authorities during recovery phase from a volcanic eruption are
important and will have a strong influence on the ability of local population to regain
their financial equilibrium and independence. This study evaluates factors that are
critical in the improvement of recovery processes for agricultural areas affected by
natural hazards, and in particular volcanic activity. Work was carried on the basis of
sites visits, focusing on interviewing scientists involved in the crises and/or local
residents and authorities, as well as documentary reviews of past case histories of the
handling of natural hazard crises. Four main field visits were carried out: Mts.
Pinatubo and Mayon (Philippines), Mt. Unzen (Japan), Mt. Taranaki and heavy
snowfalls of 2006 in South Canterbury (New Zealand) and Volcán de Turrialba
(Costa Rica). The study reveals that scientists collect information throughout a
volcanic crisis that can be used effectively to improve recovery response times in
agricultural areas. In order to contribute positively to the recovery of an area, the
information supplied needs to be relevant to the area affected which implies a preexisting
knowledge of the specifics of the region depending on the type of crops or
animals being raised, as well as of the climatic and seasonal components. In addition,
it is important to have already established trusted communication channels between
scientists, authorities and local communities through which this information can be
transmitted to ensure efficient exchanges of this information. The case studies also
show that communities that are organised around a strong support network achieve
higher levels of resilience and thereby fare better not only throughout the emergency
phase but also at recovery stage.


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