Fungi play a vital role in ecosystem nutrient cycling as decomposers, breaking down organic matter and returning essential nutrients to the soil. Their hyphal networks improve soil structure and enhance nutrient availability for plants. Additionally, fungi form symbiotic relationships with plants through mycorrhizae, facilitating water and nutrient uptake. By recycling nutrients, fungi sustain ecosystem productivity, contribute to soil health, and support the growth of diverse plant life, making them essential components in maintaining ecological balance.