Analyze the functional characteristics of urban ecosystems

The role of the urban ecosystem is to organize social production, facilitate the life of residents, and provide guarantee for economic and social development, which is embodied in four aspects: production function, life function, restoration function and regulation function. These functions are the flow of matter, energy, and information through the system and beyond.

population flow and money flow, etc.

The purpose of studying the function of urban ecosystem is to reveal the main factors affecting the stability of the system, put forward the key to regulating the system, provide a scientific basis for system decision-making, and promote the development of the system in a more orderly and advanced direction.

An urban ecosystem is an integrated system consisting of the natural environment.

Socio-economic, cultural, scientific and technological composition. It includes the construction of houses and other facilities that are the basis of urban development, as well as the inhabitants and their activities as the main body of the city. Cities are more of an artificial system.

The city is an open system. It requires access to air, water, food, fuel, and other substances from the outside world. Urban ecosystems are the inhabitants of cities.

It is also a special artificial ecosystem built by human adaptation, processing and transformation of the natural environment.

1 The first is population concentration. The biological component of this system is mainly people, and this is what distinguishes an urban ecosystem from any other ecosystem.

2 Cities are lined with high-rise buildings, streets and concrete or asphalt covering the surface, resulting in poor air flow, a significant heat island effect, and an unbalanced water budget.

3 In cities, air conditioning and heating are prevalent, refrigerators are used extensively, cars on the streets emit a lot of exhaust gases, and factories and residents burn coal to emit a lot of soot. All these waste gases discharged from production and life, mainly C02, CO, NO, N02, S02, H2S, NH, HF, Cl2, CH4, benzene, ethylene, flowers and benzoflowers, etc., are substances that pollute and poison the human body to varying degrees; There is a scarcity of producers, i.e. green plants, in urban ecosystems, making it difficult to produce organic matter on their own. A large amount of material or energy in this system is imported from outside the city, i.e. from other systems.

The consumers of the system are mainly people, the inorganic environment is artificially created, and all the material and environment are created for people.

4 Science and technology are highly concentrated in this system, and more and more products are produced, and a large number of products are exported to other ecosystems. However, a large amount of waste residue, waste water and waste gas generated in production also bring great harm, not only to the urban ecosystem itself but also to other ecosystems.

All these characteristics of the urban ecosystem show that the elements in the system are created by people, but in the past in the construction of the system at the cost of harming the quality of the environment, it is extremely important to improve the environment of the urban ecosystem, and the construction of large gardens is an alternative way to improve the environment.

The urban ecosystem is a typical artificial ecosystem built according to the will of human beings. Its main characteristics are: people-centered, strong dependence on the outside and intensive logistics, energy flow, information flow, capital flow, etc.

Urban ecosystems are made up of natural, economic, and social systems. The natural system in the city includes the basic material environment on which urban residents depend, such as sunlight, air, fresh water, land, animals, plants, microorganisms, etc.; The economic system includes all aspects of production, distribution, leakage, and consumption; The social system involves all aspects of the social, economic and cultural activities of urban residents, which are mainly manifested in various relationships between people, between individuals and collectives, and between collectives.

1. The urban ecosystem is an artificial ecosystem, and human beings are its main body Human beings are the producers of the urban ecosystem, and all the facilities of the city are created by people; Human life activities are part of the flow of energy, materials and information in the ecosystem, and have their own reproduction process. Humans, in turn, are the main consumers in urban ecosystems, and they are at the top of the pyramid. Human beings are also the masters of the urban ecosystem, and they are both regulators and regulated in this system.

2. The urban ecosystem has a large capacity, large flow, high density, fast operation, and is a highly open ecosystem Most of the food, energy and materials required by the urban ecosystem rely on artificial input from other ecosystems. At the same time, production, construction, transportation, transportation, etc. in the urban ecosystem all require energy and materials**. These must also be imported from the outside.

The energy flow and logistics of urban ecosystems can be summarized into five processes: mining, manufacturing, transportation, use, and disposal.

3. The fragility of urban ecosystems Relying on external forces to maintain urban ecosystems destroys the natural regulatory function to a certain extent, the food chain is simplified, the self-regulation ability of the system is small, the nutrient relationship is inverted, and the system relationship is unstable.

4. The ecosystem of Juju City is a system of self-domestication by human beings.5 The urban ecosystem is a multi-level complex system.

1. Structure is composed of natural, economic, and social systems.

The natural system in the city includes the basic material environment on which urban residents depend, such as sunlight, air, fresh water, land, animals, plants, microorganisms, etc. The economic system includes all aspects of production, distribution, circulation and consumption. The social system involves all aspects of the social, economic and cultural activities of urban residents, which are mainly manifested in various relationships between people, between individuals and collectives, and between collectives.

2. Functions. Production functions. Respectively, production, to provide materials and information products for the society life function. Cities have the ability to make use of the natural and other resources provided by the environment inside and outside the region to produce various products, that is, to provide convenient living conditions and comfortable habitats for citizens.

Restoration function, the city has the ability to eliminate and buffer the adverse effects of its own development, and can restore the original state as soon as possible when undesirable changes occur in nature.

Cities are the center of modern human activities, they are not only the place where the population gathers, but also the center of economic and cultural development, and the three functions of the urban ecosystem: material circulation, energy flow and biodiversity maintenance, play a crucial and important role in the environmental quality and sustainable development of a city.

Matter circulation function.

The material cycle function of urban ecosystem refers to the reuse of materials required for urban production and life through the coordinated action of biological and non-living systems in the city in the process of material transformation in the city. For example, in the municipal wastewater treatment system, most of the resources of the sewage are reused after treatment technologies such as primary filtration, biochemical treatment, and life membrane separation, such as sludge, biogas, fertilizer, etc. These resources not only contribute to urban production and life, but also reduce the amount of waste and reduce the load on the urban ecological environment.

Energy flow function.

The energy flow function of the urban ecosystem refers to the process of synchronous energy flow to the material conversion required to maintain human activities through the urban ecosystem. For example, in the lawn, garden and other green spaces in the green belt of urban streets, perennial plants and fallen leaves are used to absorb sunlight, carry out photosynthesis, produce a large amount of biological energy, and then control the temperature in the city and maintain the ecological balance of the city.

The function of maintaining the diversity of biological and offspring wheels.

The biodiversity maintenance function of urban ecosystems refers to the protection of ecological diversity in cities through the protection and construction of various ecosystem types in urban ecosystems in the process of urbanization. For example, the protection of scenic spots in the city and the protection of the ecosystem of the river basin in the city are conducive to maintaining the integrity and stability of the urban ecosystem and improving the environmental quality of the city.

Analysis of the shortcomings of ecosystem governance.

At present, there are shortcomings in the governance of China's urban ecosystems, which are mainly manifested in: first, the problem of environmental pollution is serious, and problems such as exhaust gas emission and noise pollution have always been major problems plaguing the urban ecosystem; second, the energy consumption and waste in urban public transportation and other fields are serious; Third, the city's underground water source is seriously insufficient, which directly affects the sustainable development of the city's ecology and economy. In order to solve these problems, it is necessary to start from all aspects of urban design, construction, operation and management, realize the holistic governance of urban ecosystems, and create a green and harmonious city.

Epilogue. The three functions of the urban ecosystem play a vital role in the sustainable development of the city, which can continuously destroy and innovate the use of resources and the environment through the internal material cycle, coordinated energy flow and biodiversity maintenance, so as to achieve sustainable ecological, economic and social development. It is no longer enough to protect the urban ecological environment by a single way such as garbage classification and the promotion of new energy, and it is necessary to continuously promote science and technology, intelligence and other methods and measures to jointly create a green, healthy and sustainable urban living environment.

The analysis of urban ecosystems includes the Absolute Wheel ().

a. Systematic analysis of branches.

b. Time analysis.

c. Quantitative analysis.

d. Data analysis.

Answer: a. System analysis.

Urban ecosystem, that is: the composition of the urban ecosystem. Unlike natural ecosystems, it focuses on the interrelationship between urban humans and the urban environment.

It is a complex system composed of natural, economic, and social systems. The natural system in the city includes the basic material environment on which urban residents depend, such as sunlight, air, fresh water, land, animals, plants, microorganisms, etc. The economic system includes all aspects of production, distribution, circulation and consumption. The social system involves all aspects of the social, economic and cultural activities of urban residents, which are mainly manifested in various relationships between people, between individuals and collectives, and between collectives. These three systems are interconnected through highly dense flows of matter, energy, and information, in which human management and decision-making play a decisive regulatory role.