Information about ecology, information about ecology Brief introduction to ecology

1. Ecological civilization is a new stage in the development of human civilization, that is, the form of imitation after industrial civilization; Ecological civilization is the sum of the material and spiritual achievements achieved by human beings in accordance with the objective law of harmonious development of man, nature and society.

2. Ecological civilization is a social form with the basic purpose of harmonious coexistence between man and nature, man and man, and man and society, with respect for Wang, virtuous cycle, all-round development, and sustainable prosperity.

3. From the perspective of harmony between man and nature, the definition of absorbing the achievements of the 18th National Congress of the Communist Party of China is: ecological civilization is the sum of the material, spiritual and institutional achievements made by human beings to protect and build a beautiful ecological environment, and is a systematic project that runs through the whole process and all aspects of economic construction, political construction, cultural construction and social construction, reflecting the state of civilization and progress of a society.

The so-called ecological environment problem is a phenomenon in which the ecological environment on which human beings depend is destroyed and polluted, thus affecting human health and the development of human society. At present, the environmental problems faced by our country mainly include:

1) China has mountainous areas and fragile ecological environments that occupy 65 percent of the country's territory; In addition, due to improper development and utilization, some cultivated land has soil erosion of varying degrees.

2) The frequency of natural disasters is accelerating, and the area of damage and disaster is expanding.

3) There is a crisis of forest resources, the forest coverage rate is low, the area of timber forest is reduced, the amount of felling far exceeds the amount of growth, and the quality of forest is reduced.

4) The grassland has been degraded by 1.33 million square meters per year due to long-term grazing and heavy use and light cultivation, and the cumulative degradation has reached 86.67 million square meters, accounting for 1 3 of the available area.

5) Desertification is becoming more and more serious, and the area of desertified land is increased every year, from 1560 square kilometers in the 50s to 70s of the 20th century, to 2100 square kilometers in the 70s and 80s, and 2460 square kilometers after the 90s.

6) Water pollution is serious, in 2000, 73% of urban river sections are not suitable for drinking water, 42% of urban groundwater is polluted, nearly half of the country's seven major river systems are seriously polluted, major freshwater lakes and coastal waters due to eutrophication and red tide disasters.

7) The distribution of resources is extremely unbalanced, and the resource carrying capacity varies greatly between regions, and it is in a critical state of overpopulation overload.

8) Air pollution is serious, in 1996 the total suspended particulate matter and carbon dioxide content in major cities has exceeded the World Health Organization recommended standards by more than 2 times, and the area of acid rain has exceeded 29% of the national land area; Waste residue emissions have increased, and garbage has surrounded the city.

9) Agricultural and forestry environmental pollution is spreading from point to country, 40% of township enterprises have become the largest source of pollution, the country's polluted farmland has reached 100,000 square kilometers, and the effect of economic development is being offset.

10) The destruction of the ecological environment causes huge economic losses, and the vicious circle of accidents occurs repeatedly, directly threatening the safety of people's lives and property"Ecological deficit"It reaches 86 billion yuan per year.

Garbage classification is more than a gesture to help dad baba dad.

Water is an indispensable and precious resource for human survival. As an important part of water resources, groundwater has become an ideal water supply source for human beings due to its advantages of good water quality, wide distribution, stable changes and suitable development and utilization.

2002 In 2004, the National Water Resources Comprehensive Planning Project conducted a systematic and comprehensive evaluation of the quality of groundwater resources in the vast plains of China for the first time, and the evaluation results showed that the quality of groundwater in China is not optimistic.

50 million hectares of artificial grassland were newly built and improved, and 33 million hectares of grassland were brought under control.

The area of desertification control is 22,000,000 hectares.