Estimativa do valor de não-uso dos recursos naturais da planície de inundação do Rio Araguaia
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Data
2010-03-25
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Universidade Federal de Goiás
Resumo
Economic valuation through willingness to pay method has the assumption that tourists personal features, preferences and opinions concerning to the environment affect their willingness to pay by conservation of the area visited. The aim of this study were estimate the non-use value of Araguaia River through willingness to pay method and obtain its total economic-ecologic value, testing the hypothesis that tourist willingness to pay is influenced by personal features, preferences and opinions. From two hundred and one tourists interviewed the majority were married men, with mean age of 35 years (s.d. = +10), high instruction degree and monthly income of R$1.500,00 (s.d. = +424,26). The environmental service valuated was Araguaia River´s scenic beauty to which
majority of tourists do not have substitutes (51%) despite the use of mainly the river, the beach and fishes. However tourists are not aware of existence, function and localization of Araguaia River floodplain (72%) despite majority recognize about Fishban (63%) influenced by recreational fishing activity (r = 0,98) and comprehension of fishes use as resource (r = 0,98). The note attributed to environment by interviewed (p = 0,02) determined that majority (79%) pay US$4.3/month (R$10,00/month) to hypothetic foundation for Araguaia River existence (54%) and for future generations pleasure (22%). However the interviewed expressed protest
bids mainly for economic reasons (35%) and due to conservation programs disbelieve (25%). The non-use value
estimated was US$27,2 millions/year (R$62.9 millions/year) and the total economic-ecologic value was US$7,5
billions/year (R$17.3 billions/year). The theoretical present value at a discounting rate of 5.4%/year to the next
five years was US$9,6 millions (R$22.2 millions) and represent the loss in economic-ecologic benefits associated to the risk of variation in economy and in the quality of resource available due to inadequate use. Therefore the integrity of Araguaia River has high economic value associated to non use value and negative environmental impacts from its degradation could generate economic loss which could be reflected in the total ecological economic value as well as in the importance attributed by the users.
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Citação
ANGELO, Priscila Garcia. Estimated value of non-use of natural resources in the floodplain of the Rio Araguaia. 2010. 81 f. Dissertação (Mestrado em Ciências Biológicas - Biologia) - Universidade Federal de Goiás, Goiânia, 2010.