What is nutrient pool in nutrient cycle in plant?

A nutrient pool in the nutrient cycle refers to the reservoir of nutrients available in an ecosystem, particularly for plants. It includes both organic and inorganic forms of nutrients found in the soil, such as nitrogen, phosphorus, and potassium, which are essential for plant growth. Plants absorb these nutrients from the soil, utilizing them for various physiological processes. The nutrient pool can fluctuate based on factors like decomposition, soil health, and human activities, influencing overall plant productivity and ecosystem health.