The rate of biomass production or the amount of food energy produced or obtained or stored by a particular trophic level per unit area in a unit time is called productivity. It can also be defined as the energy accumulated in plants by photosynthesis. The unit of productivity is gm/m2/year or kcal/m2/year. According to Odum there are three types of [...]
In this article we will about the importance of sunlight in an ecosystem. Sunlight is a major part of abiotic conditions in an ecosystem. The sun is the primary source of energy on our planet. Above infrared in frequency comes visible light. The Sun emits its peak power in the visible region, although integrating the entire emission power spectrum through [...]
In this article we will discuss about the biological nitrogen cycle, explained with the help of a diagram. Ecosystems continually exchange energy and carbon with the environment; mineral nutrients, on the other hand, are mostly cycled back and forth between plants, animals, microbes and the soil. Most nitrogen enters into ecosystems through biological nitrogen fixation. This is deposited through precipitation, [...]