What are the polluting effects of organisms on the environment and what are the consequences of poll

You mean biological invasions, right? Species in the original ecosystem do not have much impact on the environment.

There are many examples of biological invasions, such as red fire ants, ragweed, snails, rice grass, water peanuts, purple stem zeatorium, Mikania, American spotted loon butterfly, and so on.

According to the data, "the known alien invasive species in China include at least 300 species of invasive plants, 40 species of invasive animals, and 11 species of invasive microorganisms." Among them, 8 invasive plants, such as water hyacinth, water peanut, purple-stemmed Zeland, rice grass and Mikania, have brought serious harm to agriculture and forestry, and there are 14 species of pests with the most serious damage, including American white moth, pine wood nematode, potato beetle, bullfrog, etc. ”

More specific examples are available.

Environmental pollution has a very adverse impact on the growth, development and reproduction of organisms, and when the pollution is serious, the morphological characteristics and survival numbers of organisms will undergo obvious changes. The following describes the harm of environmental pollution to organisms in four aspects: acid rain, harmful chemicals, heavy metals and eutrophication of water bodies.

Acid rain acidifies soils and rivers and flows through rivers into lakes, causing lakes to acidify. Acidification of lakes not only kills the plants that grow in and around the lake, but also threatens the survival of fish, shrimp and shellfish in the lake, thereby destroying the food chain in the lake and eventually turning the lake into a "dead lake". Acid rain also directly harms the leaves and buds of terrestrial plants, killing crops and trees.

At present, the harm caused by acid rain is becoming more and more serious, and it has become one of the important problems of global environmental pollution. Sulphur dioxide is one of the main pollutants that form acid rain. As the economy grows, humans will burn more coal, oil and natural gas, and produce more pollutants such as sulfur dioxide, so the harm caused by acid rain is likely to be more serious in the future.

Organisms have an impact on the environment, such as earthworms loosening soil; planting plants in the desert to prevent wind and sand fixation; The transpiration of terrestrial plants increases the humidity of the air, indicating that plants can affect the environment. The "three wastes" of human beings pollute the environment.

The influence of the environment on living things includes two aspects: one is abiotic and the other is biotic.

1) Abiotic factors: including light, temperature, water, air and other factors. Biotic factors refer to other organisms that affect the life of a certain organism.

Without light, green plants cannot photosynthesize and cannot survive. Therefore, light affects the physiological changes and distribution of plants.

Temperature: Temperatures on Earth vary greatly, but the range of temperatures suitable for living organisms is narrow. Too much heat or too cold will make the metabolism of the organism unable to proceed normally, and even make the organism die.

Water: water is the constituent component of all living organisms, there is no life without water, in addition, water is the intermediary of all metabolic activities of living organisms, the transportation of nutrients, the discharge of metabolic wastes, etc., must be carried out in aqueous solution, water affects the life and distribution of organisms. For all living things, abiotic factors affect the life of living things.

When one or several abiotic factors change drastically, it causes changes in the biological individual, and even death.

2) Biotic factors refer to other organisms that affect the life of a certain organism. Every living thing in nature is affected by many other creatures around it. This effect can be divided into two types according to the relationship between the same species or different species, and biological factors:

Intraspecific and interspecific relationships. Intraspecific relationships include both intra-species mutual assistance and intra-species struggle. Interspecific relationships include parasitism, competition, predation, etc.

The impact of living beings on the environment is mainly divided into 3 categories, plants, animals, microorganisms:

Plants can use carbon dioxide in the environment for photosynthesis, produce organic matter and oxygen, purify pollutants in the air, make the air fresh, and are of great significance for protecting the ecological environment.

Animals exhale carbon dioxide, inhale air, and regulate water vapor and temperature in the environment, which is also an indispensable part of the ecological environment.

Microorganisms can decompose organic matter in the environment, such as decomposing some animal and plant residues into inorganic matter to purify the environment, and some microorganisms such as nitrogen-fixing microorganisms can also convert inorganic matter into organic matter for plant growth, which is conducive to the circulation of matter.

biotic environment:

It refers to the environmental factors in which other living organisms are relative to the abiotic environment composed of physical and chemical environmental factors. Synonymous with organic environment. Krementz (1907, 1916) defined the interaction between living subjects and the abiotic environment as action and reaction, and the direct interaction between the living environment as interaction, for example, earthworms can aerate the soil and can decompose and mix humus, and the effect on plants has an indirect relationship.

On the other hand, Arles (1949) and others regarded organic matter in the soil as biotic; In addition, many people use the term "abiotic environment" and "inorganic environment" as the words of consent, and in order to avoid this confusion, the biological environment refers to living organisms, and the abiotic environment refers to all non-living things. It is also advisable to stipulate that the organic environment includes not only living things but also biological remains and organic matter of living things, while the inorganic environment should be limited to inorganic matter and its actual state.

Humans emit harmful gases.

If there are more pests, the crops will not be good.

Summary. 1.Environmental pollution is called environmental pollution because human factors change the composition or state of the environment, and the quality of the environment declines, thereby disturbing and destroying the ecosystem and people's normal living and production conditions.

2.Transformation of pollutantsThe transformation of pollutants refers to the process by which pollutants change their form of existence or transform into another substance through physical, chemical, or biological action in the environment. 3.

Environmental effectsNatural processes or human production and living activities will cause pollution and damage to the environment, resulting in changes in the structure and function of the environmental system, which is called environmental effect. It is divided into natural environmental effects and man-made environmental effects. 4.

Migration of pollutants: The spatial displacement of pollutants in the environment and the process of enrichment, dispersion and disappearance caused by them are called the migration of pollutants.

1.What are the main contents of the relationship between pollutants and the environment and biological organisms?

Environmental pollution refers to the phenomenon that harmful substances or factors enter the environment, and diffuse, migrate, transform, change the structure and function of the environment, and adversely affect the survival and development of human beings and other organisms. There are different types of environmental pollution, which can be divided into air pollution, water pollution and soil pollution according to environmental factors.

Environmental pollution pollutants include not only traditional heavy metals, pesticides and other organic harmful substances, but also new pollutants (such as carbon nanomaterials). When these pollutants enter the environment, they will inevitably have a negative impact on the microorganisms of the environment. Pollutants can also interact with each other due to different physicochemical properties, thus changing their environmental behavior (e.g., carbon nanomaterials have a strong adsorption capacity and can adsorb organic pollutants, thereby changing the environmental behavior of both).

Because environmental microorganisms can respond quickly to changes in the environment, the activity of environmental microorganisms is internationally recognized as an important indicator of environmental health.

1.Environmental pollution is called environmental pollution because human factors change the composition or state of the environment, and the quality of the environment declines, thereby disturbing and destroying the ecosystem and people's normal living and production conditions. 2.

Transformation of pollutantsThe transformation of pollutants refers to the process by which pollutants change their form of existence or transform into another substance through physical, chemical, or biological action in the environment. 3.Environmental effectsNatural processes or human production and living activities will cause pollution and damage to the environment, thus leading to rapid changes in the structure and function of the environmental system, which is called environmental effects.

It is divided into natural environmental effects and man-made environmental effects. 4.Migration of pollutants: The spatial displacement of pollutants in the environment and the process of enrichment, dispersion and disappearance caused by the cultivation of pollutants are called the migration of pollutants.

3.Let's briefly explain the way environmental pollutants are transported across membranes, and compare their similarities and differences.

In general, environmental pollution includes air pollution, marine pollution, land pollution, etc., which are all over-exploitation of natural resources by human beings.