摘要：Ski resorts are important tourist attractions in boreal and alpine regions. However, land use related to development of such mass tourism may damage ecosystems. We investigated the impact of ski resorts on water quality of lakes near two popular ski resorts in Finland. Fur thermore, we examined how water quality problems induced by ski resorts relate to effects of agriculture and forestry on similar lake types. Human impact significantly increased nutrient concentrations, although the differences observed between impact and control lakes were generally small. Water quality of the ski resort lakes and lakes polluted by agriculture and forestry appeared to be quite similar, with the exception of a small, humic ski-resort lake with extremely high nutrient concentrations. Two ski-resort lakes and one agricultural lake failed the total phosphorus criteria set for reaching good ecological status. Our results indicate that water protection measures should be considered more carefully in management of ski resorts.
