NPP

NPP, or Net Primary Production, is the amount of organic material (like plant biomass) that plants generate through photosynthesis minus what they use for their own growth and maintenance. It represents the energy available to herbivores and other organisms in an ecosystem. Essentially, NPP measures how much new plant material is produced and available to support the food chain. It varies across different environments—like forests, grasslands, or oceans—depending on factors such as climate, nutrients, and sunlight. NPP is a key indicator of an ecosystem’s productivity and health.