Ecosystem Structure, Function, and Change Essay

The area of ​​the freshwater ecosystem is relatively small, accounting for about 8% of the earth's surface. It consists of ponds and lakes of several square meters to several thousand square miles. Thousands of years ago, there were several glacial remains in the world. The lake may exist for hundreds of years or more, but many ponds are seasonal and last only a few months. Ponds and lakes are often isolated from each other and from other resources such as rivers and the ocean, so species may be limited. Lakes and ponds are usually divided into three different areas, depending on depth and distance.

These include lily, gama, sedge, tamarack and black spruce of the pond. Wetland plants include species such as cypress and gum. Wetlands are the most diverse species of all ecosystems. Many species of amphibians, reptiles, and birds are found in wetlands. Wetlands are not considered to be freshwater ecosystems. There are salty wetlands of high salinity that support various kinds of animals such as shrimp, shellfish, and various grasses. Without a freshwater ecosystem you and I will not live. Freshwater ecosystems are important because they provide drinking water and energy. One way people use the river is hydropower. When water passes through the dam and enters electricity under the river. Devices called turbines of the dam use magnets, metals, and water to generate electricity. When the dam is constructed, an artificial lake can be created behind the dam. Dam can be regarded as good and evil. Wetlands are also an important type of freshwater ecosystem. They can be awkward and sometimes smelly, but they provide important habitats for numerous animals and plants that help to clean our water, prevent floods, and provide food to humans . Humans have great negative effects on freshwater ecosystems. This is essential for human survival. As mentioned above, the use of dams is also harmful to freshwater ecosystems. create

Factors such as biodiversity, confusion, inheritance, etc. may affect ecosystem functions. Interference is a temporal change in environmental conditions leading to a significant change in the ecosystem and ecological inheritance is the process by which the species structure of the ecological community changes over time.

What happens if an important cycle of the ecosystem experiences a disturbance such as a fire or a human activity? Once destroyed, the ecosystem goes through a period of change that affects its structure and function. As the soil already exists, the process of this change (called secondary inheritance) occurs very soon. An example of severe damage to the born Huangshi National Park. Because of the fire that occurred in the park in 1988, 2 million acres of land were destroyed throughout the ecosystem ("Fire of 1988", n.d.). Surprisingly, secondary genes were rapidly developed in Yellowstone National Park, where herbs and lily covered the ground within a year (Raven and Berg, 2004, p. 87).

Today, soil ecosystems are exposed to many physical, chemical and biological stress factors that are directly or indirectly related to human activity. In this chapter we will explain how pollutants affect soil ecological structure and how they change soil functions and services. The structure of the soil ecosystem consists of non-biological and biological compartments that dynamically interact according to important factors such as water and light. By changing this balance system, soil function is also compromised as they depend strictly on this structure and biodiversity. Soil functions include carbon conversion, nutrient circulation, maintenance of the structure itself, and regulation of organism populations. Activities such as mining, agriculture, forestry and waste disposal often result in an imbalance between soil structure and function, mainly contributing to the ecological functional biodiversity field.