"Tourism Carrying Capacity" is defined by the World Tourism Organisation as “The maximum number of people that may visit a tourist destination at the same time, without causing destruction of the physical, economic, socio-cultural environment and an unacceptable decrease in the quality of visitors' satisfaction”. Where as Middleton and Hawkins Chamberlain (1997) define it as “the level of human activity an area can accommodate without the area deteriorating, the resident community being adversely affected or the quality of visitors experience declining”[2] what both these definitions pick up on is carrying capacity is the point at which a destination or attraction starts experiencing adverse as a result of the number of visitors.
http://en.wikipedia.org/wiki/Tourism_carrying_capacity

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Note added at 14 mins (2010-03-02 09:57:16 GMT)
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Tourism Carrying Capacity (sorry pentru "T")

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Note added at 16 mins (2010-03-02 09:58:37 GMT)
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http://books.google.com/books?id=ZtZhyqtCWJ4C&pg=PA38&lpg=PA... pagina 38

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Note added at 1 day10 hrs (2010-03-03 20:23:33 GMT) Post-grading
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Cu mare placere! :)