|Nutrient retention is an essential phenomenon in order to keep the nutrients in the land ecosystems and thus to enable vegetation growth and the subsistence of many soil microorganisms and invertebrates.
Nutrient retention in the land ecosystems plays an important role also for the resilience of the water ecosystems. If the nutrient flow from catchment area increases, it causes eutrophication in the water system. Ecological consequences of the eutrophication can be for example changes in the distribution of fish species, extensive algal blooms and decline of bottom flora.
These changes affect human activities in many ways. They might have an impact on professional and recreational fishing and other recreational activities such as swimming or different kinds of summer cottage leisure interests. Eutrophication may also cause aesthetic detriment, or health impairment due to toxic algal blooms.
- Updated (20.01.2015)