A question on biodiversity and ecosystem stability

There is no contradiction between these two, but the expressions are different, in fact, the meaning of the two is the same.

This biodiversity alone can determine the self-regulating capacity of ecosystems. Generally speaking, the richer the biodiversity, the more complex the food chain and food web it forms, so the stronger its self-regulating ability! In other words, the more stable the ecosystem!

Therefore, "biodiversity is the basis of ecosystem stability" can also be understood as "the self-regulation ability of ecosystems is the basis of ecosystem stability"! There is no conflict in this.

The self-regulating capacity of ecosystems is the basis for ecosystem stability.

Reasons for improving the stability and sustainability of the ecosystem: When the report of the 20th National Congress of the Communist Party of China talked about the mission and tasks of the Communist Party of China in the new era and new journey, it was necessary to improve the diversity, stability and sustainability of the ecosystem. Compared with the requirement of "improving the quality and stability of ecosystems" in the report of the 19th National Congress of the Communist Party of China, "diversity" has been added, reflecting a new level of our Party's understanding of the natural world and its harmonious coexistence.

Why is it necessary to improve the stability of the diversity of the shed system in the ecosystem? A: Improving the diversity, stability and sustainability of ecosystems is to make the sky clearer and clearer.

The higher the level of biodiversity, the more obscure the species are, and the stronger the stability of the ecosystem. （）

a.That's right. b.Mistake.

Perfect circle and ascend to the correct answer: a

The diversity of ecosystems is affected by the diversity of biological species. That's right.

The ecosystem is a unified whole composed of organisms and the environment, and the diversity of the ecosystem includes the diversity of biological species and the diversity of the living environment, when the ecosystem changes drastically, it will accelerate the loss of biological species diversity and genetic diversity If the lake is polluted, the organisms in the lake will be threatened, and the gene pool it has may be greatly discredited Therefore, when the diversity of the ecosystem is affected, it will affect the diversity of biological species and the diversity of genes.

The diversity of biological species and the diversity of ecosystems are mutually influential.

Biological diversity includes three levels: the diversity of biological species, the diversity of genes and the diversity of ecosystems.

The relationship between the three levels of biodiversity:

Diversity of ecosystems:

There are many diverse ecosystems on Earth, and the biosphere is the largest ecosystem on Earth. In the biosphere, many small ecosystems can be divided, such as a forest, a grassland, a farmland, a pond, a river, etc., that is, the diversity of ecosystems.

Diversity of biological species:

The diversity of species refers to the diversity of species and the differences between species, which is an important embodiment of biodiversity.

The value of biodiversity:

Biodiversity is the material basis for human survival and has great value for human survival and development.

1) Direct value: such as food, oilseeds, vegetables, fruits, meat, milk, eggs and many medicines provided by animals and plants for human beings.

2) Indirect value: Biodiversity plays an important role in the material cycle of nature, purifying the environment, improving soil, conserving water and regulating the climate.

3) Potential value: What humans know and use is a small part of living things, and the use value of a large number of wild animals is not yet clear, and they have huge potential use value.

There are artificial ecosystems, semi-natural ecosystems, and natural ecosystems. The first two are derived from the latter, such as the reclamation of forests and shrubs, grasslands and swamps for arable land, road construction, and city construction. The more it is transformed, the proportion of the natural area of the earth decreases, and the diversity of the ecosystem decreases, which also disrupts the ecological stability and weakens the functionality, and many ecological and environmental problems such as frequent natural disasters, depletion of some renewable resources, and endangerment of species will arise from this.

The management of land space, the planning of main functional zones clearly prohibits and restricts development zones, the implementation of ecological protection red lines, environmental quality bottom lines, resource utilization upper limits, and ecological environment access list systems, the control of urban development boundaries, the return of farmland to ecology, and the restoration of natural connectivity of rivers and lakes, all in order to maintain the diversity of natural ecosystems.

Therefore, even artificial ecosystems should be as diverse as possible. In addition to high-rise buildings and busy traffic, there are also street trees, green belts, various natural parks and other ecological spaces, which improve the comfort of the urban environment. But even so, can not fully meet people's ecological needs, in ancient times there were outing, now the traffic conditions have been greatly improved, urban residents go to nature to visit the mountains and rivers to see the ecology, become the new trend of the times, in fact, appreciate the diversity of the ecosystem, harvest is the beauty of nature.

The protection of biodiversity must also start with the protection of ecosystem diversity. Ecosystems are the birthing beds, towns, food, clothing, and shelters of wildlife, and we call them habitats. Any species, as long as it comes into this world, has a strong desire to survive on its own and continue its offspring.

In tens of millions of years and hundreds of millions of years of evolutionary development, various biotic and abiotic factors have jointly constructed the most suitable habitat for themselves, and there are as many different habitats as there are different ecosystems, and the life world has thrived and is complex and abnormal. Nowadays, there are more and more endangered species, and the author believes that the main reason is the loss of ecosystem diversity and complexity.

Question 1: What is ecosystem diversity Biological diversity Genetic diversity Ecosystem diversity.

Question 2: Ecosystem diversity includes species diversity, permeability, population diversity and community diversity b Question analysis: Biodiversity usually has three main connotations, namely the diversity of biological species, the diversity of heredity (genes) and the diversity of ecosystems, the diversity of biological species refers to the richness of biological clocks (including animals, plants, and microorganisms) in a certain area, such as 1244 species of birds and 3000 species of angiosperms in China. That is, biodiversity and its changes at the species level, genetic diversity refers to the genetic changes within the species of individuals or populations, the genetic composition of different species (rabbits and wheat) is very different, and the genes of the same species such as rabbits (white, black, gray, etc.) are also different, each species is a unique gene pool, the diversity of genes determines the diversity of biological species, the diversity of biological species constitutes different ecosystems, and the diversity of ecosystems refers to the diversity of biological communities and their ecological processes, and the environmental differences of ecosystems, the diversity of ecological process changes, etc.

Question 3: What is ecosystem diversity Ecosystem diversity refers to the degree of ecological diversity in an area. It distinguishes it from species diversity, which refers to the species of species rather than ecosystems.

Ecosystem diversity, on the other hand, encompasses the variety of ecosystems that exist within the biosphere. The biosphere is the largest ecosystem of the Hoop. The ecosystems in the biosphere include forest ecosystems, grassland ecosystems, marine ecosystems, freshwater ecosystems, wetland ecosystems, farmland ecosystems, urban ecosystems, and so on.

Ecosystem diversity is a variety of different biological and ecological processes that occur in different physical contexts.