Mountain lakes and the impact of human activities

The impact of human activities on the banks of high-altitude lakes depends on the extent of such activities.
Water abstraction and/or the production of hydroelectric power require the lakes to be landscaped. This impacts not only the topography but also the hydrology. In addition, the presence of mountain huts or herds on the banks of a high-altitude lake can generate or accelerate nutrient enrichment. If these nutrients are concentrated in the water at too high a level, they can enrich the lake and lead to an overproduction of biomass. This can lead to eutrophication and eventually result in hypoxia of the lake waters. It is essential to monitor such pollution to ensure that the lake remains in a healthy condition. We can then adjust and adapt our behaviour to harmonise the environment and human activities. Help to keep the lake running smoothly by respecting the swimming and fishing regulations. To find out more about mountain lakes, visit our dedicated website www.lacs-sentinelles.org/.