ABSTRACT
The vast majority of lake restoration projects aim to combat eutrophication. A reduction of the external nutrient loading to a lake is sometimes termed 'lake restoration', but most frequently lake restoration is as here interpreted as within-lake physical, chemical and biological methods to restore a healthy ecosystem. Lake restoration can be a powerful tool to improve lake water quality, but for restoration and lake recovery to be successful the external nutrient loading must first be reduced sufficiently and, when needed, combined with in-lake measures. In the future, lake restoration may become even more relevant because of an increasing demand for clean drinking water and increasing farming intensity, and with it intensified nutrient loading, due to human population growth. In spite of restoration efforts, including effluent diversion and sediment removal, the lake has remained eutrophic and turbid.
