What is an ecosystem, give an example

An ecosystem is a unified whole composed of biological communities and inorganic environments. The extent of ecosystems can be large or small, intertwined, and the largest ecosystem is the biosphere; The most complex ecosystems are tropical rainforest ecosystems, where humans mainly live in artificial ecosystems dominated by cities and farmland.

Ecosystem referred to as eco, refers to a unified whole composed of organisms and the environment in a certain space in nature, in this unified whole, organisms and the environment interact with each other, mutual constraints, and are in a relatively stable state of dynamic equilibrium in a certain period of time.

There are many types of ecosystems, which can generally be divided into natural ecosystems and artificial ecosystems. Natural ecosystems can be further divided into aquatic ecosystems and terrestrial ecosystems. Artificial ecosystems can be divided into farmland, cities and other ecosystems.

For example: 1. Tropical rainforest: There are many kinds of animals and plants, the community structure is complex, and the population density has been stable for a long time.

2. Desert: little or no rain all year round, and the annual precipitation is generally less than 250 mm.

Natural ecosystems are relatively stable ecosystems that rely on natural regulation capacity within a certain range of time and space. Such as primeval forests, oceans, etc. Thanks to the powerful role of humans, there are no ecosystems that are absolutely undisturbed by humans.

Natural ecosystems can be divided into: Aquatic ecosystems: ecosystems with water as a substrate; Terrestrial ecosystems:

Ecosystems that use terrestrial soil or parent material as substrates.

Natural ecosystems have the structure and function of ecosystems

Composition: Inorganic environment and biome.

Structure: Producers, consumers, decomposers and abiotic composition of matter and energy (sunlight, inorganic salts.

Type: Natural Ecosystem.

and artificial ecosystems.

Function: Energy flow, matter circulation, and information transfer.

Ecological balance and destruction: Ecological balance is a dynamic equilibrium, which is the result of long-term adaptation within the ecosystem, that is, the structure and function of the ecosystem are in a relatively stable state, which is characterized by:

The energy is basically equal to the input and output of matter, maintaining equilibrium.

The species and abundance within the biome remained relatively stable.

Producers, consumers, and decomposers form a complete nutritional structure.

With a typical food chain.

with a pyramid-shaped trophic level that conforms to the law.

The number of organisms, biomass, and productivity remain constant.

Destruction Destruction of vegetation.

The logging industry has seen a rapid increase in efficiency with the introduction of large work machines, which is an important cause of vegetation destruction.

In some areas, due to the long-term use of firewood as fuel, the vegetation has been seriously damaged for many years, and the Loess Plateau has been severely damaged.

is an example.

Some countries release agents that can cause plant death during wars, such as the U.S. military's use of "Agent Orange" in the Vietnam War, which caused the death of a large area of trees in Vietnam.

Disruption of food chains and food webs.

Invasive species Mass hunting.

Pollution of the inorganic environment.

I don't know if you want to summarize or be detailed, but look at this information in detail

Hope it helps.

The ecosystem is stable, diverse, holistic, hierarchical and open. The stability of the ecosystem refers to the ability of the ecosystem to maintain or restore the relative stability of its own structure and function, and the intrinsic reason for the stability of the ecosystem is the self-regulation of the ecosystem.

Earth's largest ecosystem is the biosphere; The most complex ecosystems are tropical rainforest ecosystems, where humans mainly live in artificial ecosystems dominated by cities and farmland. In order to maintain its own stability, the ecosystem needs to continuously input energy, otherwise there is a danger of collapse; Many basic substances are constantly circulating in the ecosystem, among which the carbon cycle is closely related to the global warming effect, and the ecosystem is a major structural and functional unit in the field of ecology, which belongs to the highest level of ecological research.

Ecosystem diversity refers to the sum of different habitats, biological groups, and biosphere ecological processes. It is manifested in the diversity of ecosystem structure and the complexity and variability of ecological processes. The conservation of ecosystem diversity is particularly important, both in terms of species diversity and genetic diversity.

The conservation of ecosystem diversity directly affects species diversity and its genetic diversity.