HS code filtering for restricted items

List of the contents of this article:

• 1, The first round of heavy snowfall since winter is coming. Is it possible for this heavy snowfall to form a snow disaster?
• 2 、 Shanghai has officially entered winter. What are the characteristics of winter in Shanghai?
• 3, Which environmental problems in China are the most serious? What methods are being used to solve it now? What are related to China's environmental problems...
• 4, What is the environmental condition of each province in China?

The first round of heavy snowfall since winter is coming. Is it possible for this heavy snowfall to form a snow disaster?

1. The temperature makes it snow, and it is impossible to form a snow disaster, so there is no need to worry about the first round of snowfall this time.Compared with the experience of previous years, there will be no snow disaster weather.

2. At the same time, due to the high temperature in the early stage, the depth of snow in most places will not be as large as it seems, so this round of snowfall will not cause serious disasters such as snow disasters.

3. There will be no snow disaster in this snowfall. There will be no catastrophic snow disaster in this snowfall. The main reason is that since the northern region entered winter, the temperature in the early stage is relatively high, the cold air is extremely weak, and the warm and humid air will continue to advance. After a short cliff-like cooling, there will be a new round of warming. Of course, I The familiar warm winter will come back.

Shanghai has officially entered winter. What are the characteristics of winter in Shanghai?

1. Therefore, the winter in Shanghai is generally not particularly cold. Most people who work and study in Shanghai don't wear thick clothes, gloves, scarves, etc. in winter. However, everyone should also pay attention to the winter in Shanghai. There are not many snowy days. The above are the overall characteristics of winter in Shanghai.

2. The winter in Shanghai is characterized by a short time and no severe cold in winter.Shanghai has a subtropical monsoon climate, with four distinct seasons, sufficient sunshine and abundant rainfall. The climate of Shanghai is mild and humid, with short spring and autumn and long winter and summer. In 2013, the average temperature in the city was 16℃, the sunshine was 1889 hours, and the precipitation was 1,174 mm.

3. The winter in Shanghai, known as the cold zone, is extremely humid and has no temperature and humidity. Unfortunately, if it rains continuously around 0 degrees, you must keep warm. It feels like a person stabbing you with a thin needle. Therefore, to spend the winter in Shanghai, you should wear as many clothes as possible, try to keep your joints warm, and put a little killing tips.

Which environmental problems in China are the most serious? What methods are being used to solve it now?What are related to China's environmental problems...

1. Insufficient water resources (more than 400 cities are in a state of water shortage), the expansion of desertification, sandstorms and environmental pollution caused by yellow sand and many other problems. It can be said that China's environmental pollution has fallen into a state of crisis.

2. Water environmental pollution: The pollution degree of China's seven major water systems is: Liao River, Haihe River, Huai River, Yellow River, Songhua River, Pearl River and Yangtze River. Among them, 42% of the water quality exceeds Class 3 standards (cannot be used as a drinking water source). 36% of urban river sections in the country have poor Class 5 water quality and loss of use. Function.

3. Serious pollution of the water environment: a large amount of industrial wastewater, domestic sewage, farmland wastewater, mining area tailings, etc. are discharged, resulting in serious water pollution and deterioration of the quality of the water environment. EmptySerious air pollution: industrial exhaust gas, car exhaust, soot from home stoves, etc., resulting in a decline in air quality and serious air pollution.

What is the environmental condition of each province in China?

The study of the ecological environment of various provinces in China is of great significance. First of all, research is conducive to a better understanding of the current ecological environment of each province, so that existing problems can be found in time and effective solutions can be formulated.

The basic situation of China's ecological environment is: the overall situation is deteriorating, the part is improving, the management ability is far from keeping up with the speed of destruction, and the ecological deficit is gradually expanding. The main manifestations are: serious soil erosion. In the early days of the founding of the People's Republic of China, the national soil erosion area was 1.16 million square kilometers.

The current situation of China's ecological environment is as follows: the urban environmental pollution trend is serious.

(2) Tropical monsoon climate. Including the southern part of Taiwan Province, Leizhou Peninsula and Hainan Island. The annual accumulated temperature is ≥8000℃, the average temperature of the coldest month is not less than 16℃, the annual extreme minimum temperature is not lower than 5℃ for many years, the extreme minimum temperature is generally not lower than 0℃, and there is no frost all year round. (3) Subtropical monsoon climate.

Soil erosion is one of the most prominent problems in China's ecological environment. At present, the general situation is: small-scale treatment, large-scale aggravation; upstream erosion, downstream sedimentation; disaster aggravation, vicious circle; soil erosion area has increased without decrease.