How do people live in drought, and the impact of drought on production and life

**Disaster area! It's an arid area! It's still an earthquake-stricken area! If it's a dry area! Then they will strictly regulate the use of water by one person! After how much water per household a day! Because the water comes from above! How you use it for a day is up to you!

If it's a disaster relief area! I think you'll watch the news too! The people of Yushu are still very short of clothes!

Grain! There is no place to stay! Probably sleeping on the streets!

Especially the sandstorm weather in the northwest! It's scary to think about! Therefore, everyone in the news enthusiastically donated money and materials!

Pray for the people of Yushu!

They will strictly regulate the use of water by one person! After how much water per household a day! Because the water comes from above! How you use it for a day is up to you!

If it's a disaster relief area! I think you'll watch the news too! The people of Yushu are still very short of clothes!

Grain! There is no place to stay! Probably sleeping on the streets!

Especially the sandstorm weather in the northwest! It's scary to think about! Therefore, everyone in the news enthusiastically donated money and materials!

Pray for the people of Yushu!

Drought is one of the climate disasters with the most serious impact on human society, and it has the characteristics of high frequency, long duration and wide impact. The frequent occurrence and long-term persistence of drought will not only bring huge losses to the social economy, especially agricultural production, but also cause many adverse ecological and environmental impacts such as water shortage, increased desertification, and frequent sand and dust storms. From 1949 to 2006, China's average annual drought-stricken area was 21.22 million hectares, accounting for about 60 percent of the affected area of various meteorological disasters.

Drought refers to meteorological disasters caused by severe or abnormal droughts. Generally, it refers to the reduction or failure of crops due to insufficient soil moisture and the destruction of crop water balance, resulting in food problems and even famine. At the same time, drought can also kill humans and animals due to lack of adequate drinking water.

In addition, drought is followed by locust plagues, which can lead to more severe famine and social unrest.

A variety of crops can not be sown in time, and late sowing and late onset are generally formed. The effective accumulated temperature is relatively reduced, the growth and development are delayed, the maturity period is delayed, and it generally becomes a late crop. Long-term drought has caused small crop plants, weak root systems, small leaf areas, and a significant reduction in biological yield, which directly affects economic output.

Due to the different degrees of damage, crops are sown early and late, the varieties are messy, and the growth is not neat, which causes difficulties in management. The affected crops are fragile, have poor resistance to stress, slow effect of management measures, slow nutrient absorption, and slow photosynthetic accumulation.

Disasters are generally caused by the destruction of crop moisture and the reduction of yields.

The degree of damage to crops caused by drought is related to the season in which it occurs, the type, variety and growth period of crops. Early spring affects spring sowing, or causes lack of seedlings and broken ridges of spring-sown crops, and affects the normal growth of overwintering crops.

Hazard 1Drought leads to a decrease in the body's immunity.

2.Drought is the number one disaster that endangers agricultural and animal husbandry production.

Meteorological conditions affect the distribution, growth and development, yield and quality of crops, and water conditions are the main conditions that determine the type of agricultural development. Due to its high frequency, long duration, wide range of impact and large delayed impact, drought has become the most serious meteorological disaster affecting China's agricultural production. Drought is the main animal husbandry meteorological disaster in China, which is mainly manifested in affecting pasture and livestock products and aggravating grassland degradation and desertification.

3.Drought has further deteriorated the ecological environment.

a Warming and drying of the climate has led to a decline in the water level of lakes and rivers, and some of them have dried up and cut off. Due to the lack of surface water supply caused by drought and water shortage, we can only rely on a large amount of over-extracted groundwater to maintain the livelihood of residents and the development of industry and agriculture, but over-exploitation of groundwater has led to a series of ecological and environmental problems such as groundwater level decline, funnel area expansion, land subsidence, and seawater intrusion.

b Drought leads to degradation of grassland vegetation. Most areas of China are in arid, semi-arid and sub-humid ecologically fragile zones, and the climate is characterized by the prevailing southeast monsoon in summer, the same season of rain and heat, and the precipitation mainly occurs from April to September every year. Although the rainy season in the northern region is also from April to September every year, there is great pore size heterogeneity, and it has the characteristics of nine droughts in ten years.

Due to the change of climate and environment and unreasonable human disturbance activities, the vegetation has been seriously degraded, and after entering the 21st century, drought has a tendency to worsen for several consecutive years, and it is a continuous drought in spring, summer and autumn, which is very unfavorable to the fragile ecosystem. c Climatic aridity exacerbates the process of land desertification.

d.Warming and drying of the climate has led to other natural disasters.

Droughts in winter and spring are prone to forest fires and grassland fires. Since 2000, due to the continuous increase of global temperature, the climate in the northern region has been dry, the ground temperature of woodland is high, the grassland has a long dead period, and the underground forest fire and grassland fire have an increasing trend.

After the floods.

What is the cause of the flood, of course, the first is nature, but we can't change it in the face of nature, there are many aspects to summarize afterwards, it can be avoided, and the consolidation of the embankment can avoid the flood, so why do it happen, it is caused by bureaucracy and corruption, why do you say that, if there are people in the heart of the official, We can't see the fragile embankment not to be consolidated, this is completely bureaucratic thinking, there is bureaucracy and corruption, if the officials are corrupt, what will they do, everything they do is for themselves, what will a state power look like when it hands over power to these corrupt people to manage, the consequences are unimaginable, the flood is just a small disaster, the harm of corruption since ancient times is serious, it has led to civil strife and war, if the real war happens, the disaster will really come, So we don't want disaster to happen, but what can we do?

It's definitely not good. We need to lend a helping hand to fight the floods.

Drought refers to a meteorological disaster in which the long-term shortage of water or precipitation is insufficient, and the water requirement of crops or the amount of water drawn from the soil is not adapted for a considerable period of time, resulting in limited growth or death of crops, reduced yields or no harvest. Drought is a widespread natural disaster, which not only affects agriculture, but also seriously affects industrial production, urban water supply and the ecological environment. In China, the normal growth of crops affected by water shortage during the growing period is usually called drought, and the reduction of yield by more than 30% due to drought is called disaster.

Areas where drought is frequent are called drought-prone areas.

This is the impact of the severe drought in the southwestern provinces.

Reduced water sources. There are reservoirs that have dried up due to drought, and there are rivers that have dried up to the point of non-flow. By March 2010, the water level in the upper reaches of the Yangtze River had also dropped significantly.

For example, the water flow of Huangguoshu Waterfall has been reduced to a record low. Only a small amount of water is released from 10 a.m. to 4 p.m. every day for visitors to watch, and the other 18 hours are cut off.

Huangguoshu Waterfall is 100 meters wide and the waterfall becomes a thin stream.

The reduction of crop yield affects spring plowing and spring sowing.

At present, it is a foregone conclusion that the drought in southwest China will affect spring plowing and spring sowing, and the drought will be fundamentally alleviated until at least late May. Some arid areas in Yunnan are facing a food ration crisis after the harvest fails.

Agricultural products **part**.

There are reports that the price of rice in Shanghai, Chongqing, Yunnan and other places has increased in a short period of time. [3] Flowers****. Yunnan suffered a century-old drought, and the yield of cloud flowers was reduced on a large scale.

At the same time, the total price of Yunhua did not rise due to the scarcity, but the total price declined. The reason for this "deformed" state is because of the decline in the quality of cloud flowers. The decline in the quantity and quality of cloud flowers has also caused a large range of flowers in the country.

Sixty percent of the country's hydropower is in an emergency.

The drought in the southwest disaster area continues, and some hydropower units are almost out of production, and the hydropower generation in various places is much lower than the same period in history. The power generation capacity of the Southern Power Grid has dropped sharply, and there has been a shortage of electricity in various places, which has caused difficulties in the people's livelihood and drought fighting. The inventory of some power plants in Sichuan has fallen below the seven-day warning line, and the drought in Guangxi has paralyzed ninety percent of hydropower.

The drought in southwest China has caused sixty percent of the country's hydropower to be in an emergency, and thermal power units in many places are struggling. [

Just like what happened in the five provinces and cities in southwest China in the second half of last year, the television was full of programs and images of people looking for water. The trees on the mountain are dried up in large numbers.