The loss of energy during the process of gross primary productivity is known as net primary productivity. It is completely dependent on the Gross primary productivity. If the GPP decreases due to any factor, then the NPP will also decrease. It can also be affected by climate, nutrients, soil quality, and the environment. NPP can be used to check out the well-being of the plants and if they are functioning properly. It is also used to calculate the yield of crops in different sectors.