ravinnonpohjas
Ravinnonpohjas refers to the nutrient base or substrate upon which organisms, particularly plants, grow and obtain essential elements for their survival and development. In terrestrial environments, this typically refers to soil, which is a complex mixture of mineral particles, organic matter, water, and air. Soil provides anchorage for plants and serves as a reservoir for nutrients like nitrogen, phosphorus, potassium, and various micronutrients. These nutrients are absorbed by plant roots and are crucial for photosynthesis, growth, and reproduction.
In aquatic ecosystems, the concept of ravinnonpohjas extends to the bottom sediments of lakes, rivers, and oceans,