Nährstoffverarmung

Nährstoffverarmung refers to the depletion of essential nutrients in a given environment, often soil or water. In terrestrial ecosystems, this typically occurs when plants continuously absorb nutrients from the soil without sufficient replenishment through natural processes or fertilization. Over time, this can lead to reduced soil fertility, affecting plant growth and overall ecosystem health. Factors contributing to soil nutrient depletion include intensive agriculture, erosion, and leaching.

In aquatic environments, Nährstoffverarmung, or oligotrophication, describes a state of low nutrient concentration. This is generally associated with clear water, low algal productivity, and a diverse community of aquatic organisms adapted to nutrient-poor conditions. Conversely, eutrophication, the enrichment of water bodies with nutrients, is a more commonly discussed issue, often leading to algal blooms and oxygen depletion. However, a natural or induced state of Nährstoffverarmung can be a characteristic of healthy, undisturbed aquatic ecosystems like pristine lakes. Understanding Nährstoffverarmung is crucial for managing agricultural practices and protecting aquatic environments.