Nutrient cycling is the movement and exchange of nutrients within an ecosystem. This process involves the cycling of essential elements such as carbon, nitrogen, phosphorus, and sulfur between living organisms, soil, water, and the atmosphere. Nutrient cycling plays a crucial role in maintaining the health and productivity of ecosystems, as it ensures that essential nutrients are continuously available to support the growth and development of plants and other organisms. Understanding nutrient cycling is important for managing natural resources, sustainable agriculture, and mitigating the impacts of human activities on the environment. Researchers in this field study the processes that regulate nutrient cycling, the factors that influence nutrient availability, and the implications of nutrient imbalances on ecosystem function and health.