The basic structure and function of the ecosystem are described.

Ecosystems are composed of abiotic matter and energy, producers, decomposers, and consumers. Among them, the producer is the main ingredient. 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.

Function: The energy flow of the ecosystem drives the circulation of various substances between the biological community and the inorganic environment. The substances here include the basic elements that make up living organisms: carbon, nitrogen, sulfur, phosphorus, and toxic substances represented by DDT, which can be stable for a long time.

Extended Materials. Basic Structure:

1. Time structure. The structure of ecosystems changes over time. Generally, there are three time length measurements: one is the long-term measurement, which takes ecosystem evolution as the main content; the second is a medium-time measurement, with community succession as the main content; The third is short-term measurement.

2. Nutritional structure. The most essential connection between the elements of the ecosystem is achieved through nutrition, and the food chain and food web constitute the trophic relationship between species.

3. Classification. 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.

The structure of an ecosystem is made up of two parts:

1.Components of ecosystems: including abiotic matter and energy, producers, consumers, decomposers.

2.Trophic structure of ecosystems: food chains and food webs.

The function of the ecosystem has two major functions: energy flow and material circulation.

The structure of an ecosystem consists of two parts: the components of the ecosystem, the food chain, and the food web.

The components of ecosystems include abiotic matter and energy, producers, consumers, and decomposers. The food chain and food web are the trophic structures of an ecosystem. The flow of energy, the circulation of matter, and the exchange of information are the functions of ecosystems.

What is ecosystem structure.

Ecosystem structure refers to the relatively orderly and stable state of various components of the ecosystem in space and time. It includes both morphological and nutritional relationships.

The morphological structure of the ecosystem: the biological species, population number, spatial configuration of the species (horizontal distribution, vertical distribution), and the temporal change (development) of the species constitute the morphological structure of the ecosystem. For example, in a forest ecosystem, the types of animals, plants, and microorganisms, as well as the number of organisms in each biological species, are relatively stable for a certain period of time.

In terms of spatial (three-dimensional) structure, there is an obvious hierarchical phenomenon from top to bottom, with trees in the upper layer, shrubs in the middle layer, herbaceous plants in the middle and lower layers, mosses and lichens on the ground, and root systems in the ground.

The trophic structure of the ecosystem: The trophic relationship established between the components of the ecosystem constitutes the trophic structure of the ecosystem, which is the basis for the flow of energy and materials in the ecosystem.

Answer]: An ecosystem is a unified whole formed between all organisms (i.e., biological communities) that cohabit in a certain space and their environment due to the continuous process of material circulation, energy flow and information transmission.

Ecosystems are made up of both biotic components and the abiotic environment, which includes mineral elements, compounds and organic matter that participate in the material cycle, as well as climatic or other physical conditions. Biological components include three functional groups: producers, consumers, and decomposers.

Producers refer to autotrophs that can use inorganic matter to make organic matter, synthesize inorganic substances such as water and carbon dioxide into organic substances such as carbohydrates through photosynthesis, and convert solar energy into chemical energy and store it in synthetic organic matter. The organic matter produced is the only energy for consumers and decomposers**.

Consumers are directly or indirectly dependent on the organic nutrients produced by the producers, and belong to the heterotrophic organism Dou, which mainly refers to various animals, including herbivores, carnivores, parasites, saprophores and omnivores.

Decomposers are also heterotrophs, mainly bacteria and fungi, whose role is to break down the complex organic matter of plants and animals into simple compounds that producers can reuse and release energy. Decomposers play an extremely important role in the ecosystem, and without them, the dead plants would be piled up and accumulated, the matter could not be recycled, and the ecosystem would be destroyed.

Ecosystem refers to the unified whole composed of organisms and the environment in a certain space in nature, in which organisms and the environment influence and restrict each other, and are in a relatively stable and dynamic state for a certain period of time. Ability.

The ecosystem is an open system with self-regulating functions. In the same way, the ecosystem with diverse components, complex energy flow and material cycle pathways has a strong self-regulating ability. On the contrary, the self-adjustment ability of ecosystems with a single structure and composition is relatively weak. Manifested as:

There are four aspects: negative feedback adjustment, positive feedback adjustment, resistance stability, and resilience stability.

Basic Structure:1. Time structure. ecosystem over time'The structure of change has also changed.

There are three time-length measurements: one is long-term measurement, which mainly focuses on ecosystem evolution; the second is a medium-time measurement, with community succession as the main content; The third is short-term measurement.

2. Nutritional structure. The most essential connection between the elements of the barn system is achieved through nutrition, and the food chain and food web constitute the trophic relationship between species.

The biomes in the ecosystem are the basis that make up the ecosystem. The components of ecosystems: abiotic matter and energy, producers, consumers, decomposers.

Among them, the producer is the main ingredient. Different ecosystems are: forest ecosystems, grassland ecosystems, marine ecosystems, freshwater ecosystems (divided into lake ecosystems, pond ecosystems, river ecosystems, etc.), farmland ecosystems, tundra ecosystems, wetland ecosystems, and urban ecosystems.

Among them, the inorganic environment is the foundation of an ecosystem, and its conditions directly determine the complexity of the ecosystem and the richness of the biological communities in it. The biome reacts to the inorganic environment, and the biome in the ecosystem is not only adapting to the environment, but also changing the appearance of the surrounding environment, various basic substances closely link the biome with the inorganic environment, and the primary succession of the biome can even turn a desolate bare land into an oasis with abundant water and grass. The various components of the ecosystem are closely linked, which makes the ecosystem an organic whole with certain functions.

The ecosystem is made up of all the organisms in the wheat field.