Two main features of climate in China.

The two main features of China's climate are diversity and variability.

1. Diversity

The diversity of climate in China means that China's vast geographical area and complex terrain lead to the differences of climate in different regions. China spans the Asian continent, with Northeast Asia in the north, Southeast Asia in the south, Central Asia in the west and the Pacific coast in the east.

This makes China have a variety of landform types, such as mountains, plains, deserts, basins and hills, thus forming a variety of climate characteristics. The climate in northern China is mainly cold and dry, with short hot summers and long cold winters.

The climate in the south is mainly warm and humid, with four distinct seasons, hot and rainy in summer and mild and little rain in winter. In addition, there are high mountain areas in China, such as the Qinghai-Tibet Plateau and the Himalayas, with special climate, low temperature, low air pressure and cold and dry climate.

2. variability

The variability of climate in China refers to the drastic climate change in China with obvious seasonal differences. China is located in the East Asian monsoon region in the northern hemisphere and is greatly influenced by the monsoon. In winter, affected by Siberian cold high, cold waves are frequent and the temperature drops; In summer, affected by subtropical high, monsoon water vapor rises from the ocean, bringing abundant precipitation.

In addition, China is also affected by topography, landforms, climate system and global climate change, which leads to very complicated climate change. For example, the eastern coastal areas are rainy all year round, the temperature is suitable, and the four seasons are distinct; The temperature and air pressure in the western plateau are low, with short and cool summers and cold and dry winters.

The influence of climate on people:

1. Food supply

Climate directly affects the production of crops and animal husbandry. Extreme weather events such as drought, flood and extreme temperature will destroy the growth of crops, lead to food shortage and rising food prices, and affect people's food supply.

2. Water resources

Climate change will affect the distribution and availability of water resources. Changes in precipitation patterns may lead to water shortage, especially in arid areas. This will affect people's drinking water, agricultural irrigation, industrial water and so on.

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Climate change may lead to a series of health problems. For example, under the conditions of extreme high temperature and humidity, people are easily affected by heat waves and suffer from heatstroke. Climate change may also increase the risk of disease transmission, such as mosquito-borne malaria and dengue fever.

4. Natural disasters

Climate change has increased the frequency and intensity of extreme weather events such as hurricanes, floods, droughts and forest fires. These disasters threaten people's lives, property and infrastructure, resulting in people's displacement, economic losses and social instability.

5. Economy

Climate change may have a profound impact on the economy. Industries closely related to climate, such as agriculture, fisheries and forestry, may be damaged, resulting in reduced employment opportunities and slower economic growth. Climate change may also lead to an increase in energy costs, such as a shortage of electricity supply caused by increased demand.

6. Environment

Climate change has an irreversible impact on the ecosystem. Extreme weather events, sea level rise and greenhouse gas emissions will destroy biodiversity, habitat and ecological balance.