What are the environmental factors that affect the life of earthworms?

Earthworm. Living in dark, damp and rich in organic matter, earthworms do not have specialized respiratory organs, and earthworms' respiration is done by a body wall that can secrete mucus and always remain moist Therefore, earthworms need to live in a moist, loose, and humus-rich place.

Soil Cavemen feed on organic matter in the soil during the day and come out at night to feed on fallen leaves

The amount of soil moisture can affect the life of earthworms

The steps of science** include: asking questions, making hypotheses, making plans, implementing plans, drawing conclusions, and expressing communication

The question raised is does moisture affect the life of earthworms? So the hypothesis that should be put forward is that water affects the life of earthworms, so the only variable in the experiment is water can be designed as follows

Take a rectangular carton, take the horizontal axis center line as the boundary, put a layer of wet soil on one side of the box, and put a layer of dry soil on the other side, so that two environments of wet and dry are formed in the box; Put 5 earthworms on each side of the box and let stand for 2-3 minutes; The number of earthworms in wet and dry places is counted at certain intervals, the experimental data are recorded, and the statistics are counted 10 times, and finally an average number is taken.

This avoids the serendipity of the experiment).

Therefore, the answer is: earthworms live in dark, moist soils rich in organic matter; The amount of soil moisture can affect the life of earthwormsTake a rectangular carton, take the horizontal axis center line as the boundary, put a layer of wet soil on one side of the box, and put a layer of dry soil on the other side, so that two environments of wet and dry are formed in the box; Put 5 earthworms on each side of the box and let stand for 2-3 minutes; Count the number of earthworms in wet and dry places at certain intervals, record experimental data, count 10 times, and finally take an average number (so as to avoid the chance of experiments).

The environmental factors that affect the life of earthworms are that the soil and water quality are polluted. Therefore, the existing soil and water quality are unfavorable factors affecting the life of earthworms.

Earthworm. It is a saprophytic animal, living in a humid environment, feeding on putrefactive organic matter, and living in an environment full of microorganisms but rarely getting disease, which is related to the earthworm's unique antibacterial immune system.

Relate. Vermicompost is mainly used for biofertilizer, soil improvement, detoxification, adsorbent, prevention of pests and diseases, etc. Different from general fertilizers, it is odorless, tasteless, granular, and has good water absorption and permeability.

Earthworm: Earthworm, also known as Earth Dragon, is a terrestrial invertebrate of the Oligochaeta class of the phylum Annelids.

Earthworms are one of the annelids, there are more than 3,000 species of earthworms in the world, and there are more than 200 species in China. There are ringworms, Aisheng worms, heterolip worms, dura worms and other varieties widely distributed throughout the country.

Earthworms are rich in nutrition, rapid reproduction, miscellaneous diets, and high yield in artificial breeding. Good economic benefits. Earthworms can be used as a valuable medicine** for many diseases, and can also be used as high-protein food and feed.

Earthworms dig holes to loosen the soil, decompose organic matter, create good conditions for the growth and reproduction of soil microorganisms, and improve soil improvement, eliminate pollution, protect the ecological environment, and in material circulation and biodiversity.

At present, many countries use earthworms to dispose of household waste.

Organic waste and purified sewage.

Earthworms contribute to the material cycle and energy transfer of soil processes through activities such as feeding, digestion, excretion (vermicompost droppings), secretion (mucus) and burrowing, and are one of several soil invertebrate groups (mainly earthworms, mites and ants) that have an important impact on the processes that determine soil fertility, and are known as ecosystems.

Engineer.

Earthworms do not have special respiratory organs, and earthworms' respiration is completed by a body wall that can secrete mucus and always remain moist Therefore, earthworms need to live in moist soil to keep the body wall moist Earthworms belong to ectotherms and cannot maintain a constant body temperature, so they can only live in soil with little change in temperature Therefore, earthworms need to rely on moist body walls to breathe, and their body temperature is not constant, so they are only suitable for living in moist soil

Earthworms are suitable for use in humid environments. They are loosens of the land.

Discharge cooling is another type of convection cooling. Unlike regenerative cooling, the coolant used for exhaust cooling absorbs heat to the thrust chamber and is discharged out of the combustion chamber instead of entering the combustion chamber to participate in combustion. Direct drain coolant reduces the thrust chamber specific impulse, so the coolant flow for drain cooling needs to be minimized while only using drain cooling at the outlet section of the nozzle that is relatively less heated.

There is also radiative cooling, in which the heat flow is transferred from the combustion products to the thrust chamber, and then the heat is radiated by the thrust chamber wall to the surrounding space. Radiative cooling is characterized by simplicity and small structural mass. It is mainly used in the extension section of large nozzles and the thrust chamber of small thrust engines using high-temperature resistant materials.

When cooling in the thrust chamber of the tissue, a relatively low temperature liquid or gas protective layer is established on the surface of the thrust chamber wall to reduce the heat flow to the thrust chamber wall, reduce the wall temperature, and achieve cooling. Internal cooling is mainly divided into three methods: internal cooling (shield cooling), membrane cooling and diaphoretic cooling of head tissues. After the internal cooling measures are adopted in the thrust chamber, the mixing ratio near the wall of the combustion chamber is different from the optimal mixing ratio in the central area (in most cases, the near-wall layer rich in fuel is used) due to the need to reduce the temperature of the protective layer, resulting in the uneven distribution of the mixing ratio along the cross-section of the combustion chamber, so that the combustion efficiency is reduced to a certain extent.

Membrane cooling is similar to shield cooling in that it cools the thrust chamber wall by establishing a uniform and stable coolant film or air film protective layer near the inner wall surface, except that the coolant used to establish the protective layer is not injected by the injector, but is supplied through a special cooling belt. The cooling band is generally arranged in a cross-section of the combustion chamber or the convergence section of the nozzle. There can be several cooling bands along the length of the combustion chamber.

In order to improve the stability of the membrane, the coolant often flows through the gaps or small holes in the cooling belts, and when sweating is used, the thrust chamber wall or part of the inner wall is made of porous material with a pore diameter of tens of microns. Porous materials are usually sintered with metal powders or pressed with metal mesh. In this case, the number of pores per unit area is increased by making the micropores in the material as evenly distributed as possible.

The liquid coolant penetrates into the inner wall, creating a protective film that reduces the density of the heat transferred to the wall. When the flow rate of liquid coolant used for sweat cooling is above a certain threshold, a liquid film is formed near the wall of the thrust chamber. When the coolant flow rate is below the critical flow, the inner wall temperature will be higher than the coolant boiling point at the current pressure, and some or all of the coolant will evaporate, forming an air film.

In addition to the above thermal protection, there are other thermal protection methods such as: ablation cooling, thermal insulation cooling, hot melt cooling and composite protection of chamber walls. 3. Thermal protection scheme of high enthalpy gas generator Based on the above methods and the actual situation, the thermal protection method of high enthalpy gas generator is obtained.

The combustion chamber of a high-enthalpy gas generator differs from that of a liquid rocket engine, eliminating the front thrust chamber part, making its structure simpler and more effective. Then, the thermal protection involved is the thermal protection part of the combustion chamber wall. As the fuel enters the combustion chamber, it quickly decomposes and releases large quantities.

Summary. Hello, dear, I am glad to answer for you, what is the impact of earthworms on the environment? The reply is as follows:

The impact of earthworms on the environment includes: earthworms dig holes to loosen the soil, decompose organic matter, create good conditions for the growth and reproduction of soil microorganisms, and play a special role in soil improvement, eliminating pollution, protecting the ecological environment, and playing a special role in material cycle and biodiversity. Earthworms are currently used in many countries to treat household waste, organic waste and purify sewage.

Earthworms contribute to the material circulation and energy transfer of soil processes through activities such as feeding, digestion, excretion (vermicompost droppings), secretion (mucus) and burrowing, and are one of several soil invertebrate groups (mainly earthworms, mites and ants) that have an important impact on the processes that determine soil fertility, and are known as "ecosystem engineers".

Hello, dear, I am glad to answer for you, what is the impact of earthworms on the environment? The reply is as follows: The effects of earthworms on the environment are:

Earthworms dig holes to loosen the soil, decompose organic matter, create good conditions for the growth and reproduction of soil microorganisms, and play a special role in soil improvement, eliminating public pollution, protecting the ecological environment, and playing a special role in material circulation and biodiversity. Earthworms are currently used in many countries to treat household waste, organic waste and purify sewage. Earthworms contribute to the material circulation and energy transfer of soil processes through activities such as feeding, digestion, excretion (vermicompost droppings), secretion (mucus) and burrowing, and are one of the many soil invertebrate groups (mainly earthworms, mites and ants) that have an important impact on the processes that determine soil fertility, and are known as "ecosystem engineers".

The use of vermicompost is as follows: 1. It can be used as base fertilizer and top dressing for grains, vegetables, fruit trees, melons and landscaping. 2. The effect of using it with long-lasting chemical fertilizers is more significant.

3. The fertilizer is absolutely safe for crops, and it can be in direct contact with seeds or seedlings, and there will be any harm to Buyu Mountain. The benefits of vermicompost on the soil Vermicompost is itself a kind of black, homogeneous.

1. It has a natural earthy flavor and fragrant substance, and a loose and porous aggregate structure. The sedan car has good ventilation, drainage and high water holding capacity of the sedan car. Vermicompost has a large surface area and colloidal reticulation properties, which allows many beneficial microorganisms to survive.

This unique physical structure and colloidal properties make it have a miraculous adsorption effect.

<> earthworms prefer to live in dark, moist soils, usually 10-30 cm deep in loose soil. Earthworms are generally gray or brown and are terrestrial invertebrates of the phylum Oligochaetidae of the phylum Annelids, with segmented but not partitioned bodies, hermaphroditic, 1-2 pairs of gonads, and prefer to feed on decaying plants or other organic matter.