The problems faced by the urban ecology and the current ecological environment

The details are as follows.

1.Ecological space is threatened by continuous excavation. Urbanization, industrialization, infrastructure construction, agricultural reclamation and other development and construction activities occupy ecological space; The fragmentation of ecological space has intensified, and the construction of transportation infrastructure has intensified.

2.The quality of the ecosystem and the service function are low. The low-quality ecosystems were widely distributed, and the proportion of forest, shrub and grassland ecosystems with low quality was as high as .

3%。3.The overall trend of accelerating biodiversity decline has not been effectively curbed.

Ecologicalenvironment, which is the abbreviation of "environment composed of ecological relations", refers to the sum of various natural forces (matter and energy) or actions that are closely related to human beings and affect human life and production activities. Ecological environment refers to the general term for the quantity and quality of water resources, land resources, biological resources and climate resources that affect the survival and development of human beings, and is a complex ecosystem related to sustainable social and economic development. Ecological and environmental problems refer to the various negative feedback effects that harm human survival caused by the destruction and pollution of the natural environment in the process of using and transforming nature for the survival and development of human beings.

Attention should be paid to urban environmental problems such as air pollution, garbage pollution, and water pollution.

1. Air pollution.

Automotive, industrial, and construction activities in the city produce large amounts of exhaust fumes and particulate matter, which can have a serious impact on air quality and lead to air pollution.

2. Garbage pollution.

The amount of garbage in the city is increasing day by day, and the lack of garbage treatment facilities and improper garbage disposal have led to problems such as garbage siege and garbage pollution.

3. Water pollution.

Industrial, agricultural, living and other activities in the city will produce wastewater and sewage, which will cause serious pollution to water resources and threaten the survival of human beings and organisms if they are discharged directly without treatment.

Ways to protect the urban environment:

1. Strengthen the implementation of environmental protection policies and measures.

** We should formulate and improve environmental protection policies and measures, strengthen the governance and supervision of environmental pollution, strengthen environmental monitoring and information disclosure, and promote the improvement of urban environmental quality.

2. Promote green transportation.

Greening urban transportation is one of the effective ways to reduce urban air pollution. ** Increase investment and support for public transport, encourage citizens to use public transport, and reduce the use of private vehicles.

3. Promote garbage classification and **.

Garbage classification and garbage classification is one of the effective ways to reduce the amount of garbage disposal and reduce garbage pollution. Relevant policies and regulations can be formulated to encourage enterprises and residents to participate in garbage classification and activities.

4. Strengthen the prevention and control of water pollution.

** It can strengthen the supervision and treatment of wastewater and sewage generated by industry, agriculture, life and other activities, strengthen the protection and management of water resources, and ensure the sustainable use and protection of water resources.

5. Promote green buildings.

Green building refers to a building that minimizes energy consumption, reduces environmental pollution and improves environmental quality through technological innovation and management measures throughout the life cycle of a building. **Relevant policies and regulations can be introduced to encourage enterprises and residents to actively participate in the construction and use of green buildings. <>

In today's world, human survival and development and global environmental problems are becoming more and more intense. With the advancement of urbanization around the world, population surge, resource reduction, ecological imbalance, and environmental damage have almost reached the point of imminent eruption. In the face of the grim reality, people have to re-examine and judge the concept and value system of urban development that we currently follow.

Looking back at today's cities, in terms of urban air, it is often polluted by soot, sulfur dioxide, carbon monoxide, photochemical smog, fluorine-containing and chlorine-containing exhaust gases, among which soot pollution and sulfur dioxide pollution are particularly serious. According to statistics, under normal circumstances, factory boilers produce about 11 kilograms of soot for every ton of coal burned, and residential stoves produce about 35 kilograms of soot for every ton of coal burned, so in cities with coal as the main fuel, the degree of soot pollution to the atmosphere can be imagined. If the burning coal and oil contain sulfur, it will also produce sulfur dioxide, which can form acid rain and acid mist when it encounters water, which is very harmful to the human body and organisms, and also corrosives the surface of buildings and metal utensils; The water bodies of the city are also polluted by a large amount of domestic wastewater, industrial wastewater, atmospheric dust, dust, aerosols, corrosives on the surface of various buildings, ground excavations of construction projects, wear and tear of tire soles, plant branches and leaves, and garbage and waste.

In addition, a large amount of solid waste in the city, such as municipal solid waste, industrial waste residue, urban construction waste, etc., also pollutes the air, water and soil of the city. Transportation, industrial production and human activities in the city also cause noise pollution, which seriously affects people's work, study and life. As for the city's traffic problem and housing problem, they are the two common problems of contemporary cities. High population density is one of the basic characteristics of the city, every day there are a large number of **, traffic, goods flow in the criss-crossing road back and forth, but the growth rate of urban road area, it is always difficult to catch up with the increase in the number of cars, resulting in frequent traffic jams, traffic accidents continue to rise, urban traffic congestion has now become one of the problems of global cities.

In addition, in many cities in developing countries, there are still problems such as poor living conditions and poor environmental quality, and a large number of people live in areas where life and industry are mixed, and a large number of rural people are flocking to cities, making the housing problems in many cities increasingly serious and the living conditions are deteriorating day by day.

In short, as far as the artificial ecosystem of the city, which is closely related to human beings, is concerned, the current environmental quality is not ideal, and there are a series of serious problems.

Severe air pollution, serious water pollution and water shortage, solid waste.

The emissions are large, and the comprehensive utilization and disposal rate is low.

Due to the concentration of urban population and industry, air pollution is serious. The air quality of most cities contains various pollutants, including high concentrations of common pollutants and low concentrations of highly toxic organic pollutants, and about one-fifth of the cities in the country are seriously polluted, and more than one-third of the 113 key cities have air quality.

Motor vehicle emissions have become the main cause of air pollution in some large and medium-sized cities. Due to the increasing intensity of desulfurization, although sulfur dioxide.

emissions are suppressed to some extent, however, nitrogen oxides.

However, it is showing a growth trend, which has a lot to do with the increasing number of motor vehicles.

Due to the aggravation of the urban development temperature island effect and the reduction of green area, the temperature will gradually rise, and the harsh environment will be aggravated.

However, at present, the growth rate of local fiscal revenue has slowed down significantly, but the pressure on expenditure in many aspects such as ensuring people's livelihood and stabilizing growth has not weakened. On the one hand, the reform measures of urban development to do a good job of "the most prepared balance between ecological protection and economic development" can effectively alleviate the revenue pressure of local governments, especially in areas with financial difficulties, enhance the ability of local governments to cope with tax and fee reductions, and ensure that the tax and fee reduction policies continue to be steadily promoted; On the other hand, it is conducive to promoting the high-quality development of regional credit and balanced development of financial resources, further straightening out the relationship between local financial distribution, and encouraging local "hematopoiesis" is the main direction of future fiscal policy. 2.

Deep Blue Think Tank believes that urban development should do a good job in ecological governance and develop industries on the other hand, and the core of urban managers is to create a vivid situation of "optimal solution" and "high value" of ecological protection and economic development in the process of urban development!