Plants are life giving, they produce their own food by using the carbon dioxide from the air, the water absorb through their roots and the energy from the sun. This process is know as photosynthesis. There are other substance that the plat produces for example proteins, fats, oils, and cellulose, for which they required nutrients such as phosphorus, potassium, and nitrogen.
In plants ecosystem there are 3 important elements and they are Water, Carbon, and Nitrogen. These are 3 common cycle that happen on plants ecosystem
The continuous movement of water between the atmosphere, the surface of earth, and underneath the soil is know as the water cycle. This process helps to clean and filter water that support life on earth, and it is driven by the energy of the sun and the earth gravitational force.
The cycle starts when there is an increase of water vapor in the air which is also know as humidity. The accumulated water vapor condenses into clouds, which later falls as snow or rain. Lakes, river, and glacier will be formed during these processes, some will be absorb by plants and some flow over the surface of streams. The sunlight will heat up the surface of the earth and causes the water to evaporate back to the atmosphere, or the gravitation pull from earth will absorb the water and store it in slow-moving ground water.
Transpiration are also one of the process where water are returned to the atmosphere. During high temperature, windy, dry, and sunny days water evaporates through the leaves of the plant.
The movement of carbon can be in many forms. Carbon can be found almost everywhere, from living life form, the earth, the sea, rocks and soil covering the earth. We human have uses the same content of carbon which have been used by other molecules since the begin of time. Carbon deoxida is absorb by plants during the photosynthesis process and oxygen is produced. When energy is burned in the process again carbon dioxide is released to the atmosphere. This is the process our great nature recycle carbon atoms.
To produce some of the organic molecules, such as the amino acid, proteins, and nucleic in our body we need nitrogen, it’s one of the building block of life. On earth we have the highest content of nitrogen in the atmosphere, where it is in gas form. The amount is one million times larger than the total content in living organism. Though there is an abundance of nitrogen in the atmosphere, plants can only take up nitrogen through solid forms of ammonium and nitrate. Most of the times soil will be the main source of nitrate. Decompositer such as the bacteria and fungi will modify the nitrogen in dead organic matters, through the process of decomposition. All the nitrogen found in the ecosystem came from the atmosphere, they are biochemically converted to useful substance in the soil.
The meaning of Ecosystem
An ecosystem is a place where plants and animals lives. It can also be any group of living and non-living things interacting with each other. Ecosystem that has a good diversity of species, will create an efficient nutrient cycles. Such diversity tends to make the area more stable and self-perpetuating.
Energy from the sun is absorb and then converted to the necessary nutrients to sustain life on earth. Most of it is stored in plants. Animals acquire some of the energy by consuming the plats or by eating other plant eating animals. From the explanation above we can see the form of a food chains. Overlap at many points, forming food webs which shows “who eat whom” in an ecosystem. If one of the plants or animal is affected, this might change the entire food web.