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CAUSE
Pressures from these activities on biological resources and their diversity are enormous and include: erosion and pollution from the construction of hiking trails, bridges in high mountains, camp sites, chalets and hotels. ... The ski industry brings, along with economic prosperity, destruction to the mountain environment.
EFFECT
These human activities fall into two main categories:
(1) deforestation and improper construction damage the natural environment and may increase the occurrence of mountain flood hazards;
(2) improper choices of residences, local congestion of engineering structures and some other factors may directly amplify the losses caused by mountain flood hazards. Finally, some hazard prevention and mitigation measures for mountain flood hazards are discussed.