The scorching heat and lack of water are not suitable for survival, is this a desert?

When it comes to deserts, I believe that the first thing that comes to mind for many people is endless sand and drought. To put it bluntly, the lack of water means that the living conditions are extremely harsh, very unsuitable for human survival, and any life in this barren land may die due to lack of water. Water is the source of life, and any life cannot do without water, even human beings at the top of the food chain cannot survive for a few days without water.

So many people think that if we want to survive in the desert, the most terrible problem we face is the lack of water. But what many people don't realize is that it's not a lack of water, but also a bigger problem, which is that the desert nights are extremely cold. Humans can last a few days if they can't replenish water, but if they don't keep warm in the desert at night, they won't be able to survive all night.

When it comes to deserts, many people will also think of Xinjiang, and there is a proverb in Xinjiang in our primary school Chinese textbooks: "Wear a cotton jacket in the morning, wear yarn in the afternoon, and eat watermelon around the stove". As you can see from this proverb, at night, we need to keep warm by the stove and the padded jacket.

Why are desert nights so cold? This has nothing to do with the sand and rocks of the desert. Friends who have studied physics should know that the specific heat capacity of sand and gravel is smaller, and it is smaller than air, which heats up quickly and cools down quickly.

During the day, sand warms up faster than the air, so the desert is very hot during the day; At night, the sand and gravel release heat into the air, which cools down very severely, resulting in very cold nights.

So it's perfectly fine to spray some water on one end of the terrarium, every other day or once a week! On the one hand, lizards can get water by licking the water droplets on the walls of the terrarium. On the other hand, this can also create a more humid corner of the terrarium?

It is good for lizards to molt and regulate their own body functions, and the main way to get water from eating most desert lizards is through ingested food! Feed them regularly. If you raise a variety that accepts vegetables and can provide them with a certain amount of vegetables, most vegetables still have sufficient water.

But don't overfeed it so as not to cause intestinal upset, desert lizards just need less water than other lizards for their health. We still need to pay attention to its drinking water supplements! In addition, it is also necessary to control the humidity in the air, not to be too dry, and it is recommended that the desert is short of water.

The cold in the desert at night is really terrible, so don't stay in the desert at night.

Yes. Because the desert is full of sand, the land is barren, and there is a serious shortage of water, it is difficult for organisms to survive in the desert, so this is the desert.

Yes. Because all three of these characteristics fit the description of the desert, which is exposed to the sun for a long time, it is very hot and water-scarce, and there are very few plants that can survive.

Definitely, this is because deserts are the only ones on earth that have this feature, and it is the result of what humans really experience.

Summary. The first point is to find water sources by looking for animals, don't look at the desert is desolate, in fact, there are many drought-tolerant and heat-tolerant animals. They also need water to survive.

Normally, desert animals travel thousands of miles to drink water. They know where in the desert there is edible water. Even experienced local guides say that if you walk in the desert, if you run out of water, you can look for animals based on their footprints.

The first point is to find water sources by looking for animals, don't look at the desert is desolate, in fact, there are many drought-tolerant and heat-tolerant animals. They also need water to survive. Normally, desert animals travel thousands of miles to drink water.

They know where in the desert there is edible water. Even experienced local guides say that if you walk in the desert, if you run out of water, you can look for animals based on their footprints.

The second point is that water is obtained through plants, and the desert is not an endless yellow sand, but also a lot of oases. There are quite a few plants growing here, and they also need water to grow. As long as we dig down the roots of the plant, most of the time, we will find a small outlet.

As long as humans put a hand towel with better water absorption on it, they can obtain a small part of the water resources, but this water contains more impurities.

The last method, which is more familiar, is to use the temperature difference between day and night to obtain water. We all know that the desert has a large temperature difference between day and night, and the high temperature during the day will evaporate the water in the sand, and when the night comes, there will be water droplets under the influence of low temperatures. We can get water by digging a sand pit, spreading a film similar to a plastic bag on top of it, and then placing a container of water underneath.

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In fact, the desert is not as short of water as we imagined, there is water under the desert, otherwise there would be no creatures living in the desert, such as desert lizards. The reason is simple, the temperature difference between day and night is extremely large. The desert heats up rapidly during the day and cools down rapidly at night.

The extreme temperature difference causes the moisture in the air to condense at night. For example, when you take out the mineral water from the refrigerator in the summer, the bottle is all water in the air for a while. Digging the surface sand is not deep, and below is the damp sand, and anyone who has spent the night in the desert in the summer knows the thing, the surface temperature is very high during the day, and the sun sets and it cools down immediately, and in the morning it is wet under the tent.

The huge temperature difference between day and night in the desert makes the air convective up and down ordinary, which is why the sky over the desert is generally clear and cloudless. Convective air causes the desert to produce a large amount of wind, and the wind in the desert rises and blows during the day, just as we see in the brazier where the paper is burned in the upper grave, and the fire always rotates upwards to form a whirlwind. This is also the reason why the dunes are formed and constantly moving.

If the wind blows flat, it will not be possible to form deserts and dunes, only next doors. The sand in the desert moves back and forth under the action of the updraft, and the sand becomes finer and finer as it grinds down, and after being filtered by the wind, the fine ones are blown to the edge. The middle stream is almost large, just like the countryside in the autumn to beat the grain field, back and forth to live a lift of the shell has been blown to the side, and the grain remains.

When the spring monsoon comes, the fine particles around the area are carried by the wind to form fresh soil and purify the land that we have polluted, which is the effect of sandstorms.

The convective air generated by the desert temperature difference forms a steady stream of wind, and the wind is the best air purifier, but we are still preventing wind and controlling sand. Deserts do not develop as quickly as we think, and the formation of deserts has its own special geographical environment. The dangers of deserts are magnified by us, and we are far from realizing the magnitude of the role of deserts on the planet.

Without the desert, there would be no fertile land for now. The eradication of deserts would alter the atmospheric cycle and bring about ecological disasters.

It is because the temperature difference between the desert during the day and at night is too large, the day is very hot, the night is very cold, the moisture will condense at night, and the sand under the desert will become more humid when you get up in the morning.

The desert areas of the polar regions are mainly due to the extremely low temperatures, where many plants and animals cannot survive, but the polar desert areas are made up of a large amount of water, which exists in the form of solid water, that is, water in the form of ice.

Desert areas are just a place where precipitation is scarce, but that doesn't mean there's no groundwater, mountain snow melt, and so on.

The surface of the desert is covered with a thick layer of fine sandy sand (have you ever been to the beach?). It's the same with the beach. It's just that the reasons for the destruction of the sedan car are different, one is the long-term action of water, and the other is the long-term effect of wind.

The surface of the desert changes and moves on its own, of course, under the action of the wind. Qingcha because the sand will run with the wind. The sand dunes will move forward and change into different shapes.

The temperature difference in the desert area is large, the average annual temperature difference can reach 30-50, the daily temperature difference is greater, the ground temperature can reach more than 60 at noon in summer, if you bury an egg in the beach, it will be cooked soon. The temperature dropped below 10 again at night. Due to the large temperature difference between day and night, which is conducive to the storage of sugar by plants, the melons and fruits in the desert oasis are particularly sweet.

The desert area has strong winds and sands. The maximum wind force can reach 10-12 magnitude. The strong wind swept up a large amount of floating sand, forming a ferocious wind and sand flow, which constantly eroded the ground and caused drastic changes in the landform.

Pedestrians are wary that some deserts are not naturally formed, but are man-made. For example, in the United States, from 1908 to 1938, due to the deforestation of more than 900 million acres, large areas of grassland were destroyed, and as a result, large areas of green space were turned into deserts. The Soviet Union's 1954-1963 reclamation campaign severely damaged the steppes of Central Asia, bringing desert disasters instead of arable land.

The Sahara Desert has brought great harm to mankind, engulfing farmland and villages, and burying railways, roads and other transportation facilities. According to historical records, the ancient city of Loulan on the Silk Road in China was swallowed by the desert. At present, mankind is doing everything possible to prevent and control desertification, such as planting trees, planting grass and fixing sand, and setting up sand barriers, all of which have achieved very good results.

Because the weather is dry and the sand does not store water, even precipitation will evaporate immediately. (except for some oasis strips).

The desert is full of sand and can't store water.

Because in desert areas, vegetation damage is more serious, and precipitation is scarce due to high temperature and high evaporation in middle age.

It's just that there is no water to become a desert...

Deserts are generally formed in areas with little precipitation, but also in the interior.

We can dig a pit, put a cup in the middle of the pit, spread a layer of plastic wrap on it, press the plastic wrap with sand, and then a small pile of sand in the middle of the plastic wrap to let the water vapor flow down the slope to the cup, so that fresh water is made.

You can dig a deep pit, collect distilled water, and store urine, and then you can save your energy and deal with it calmly.

Find water. Because human beings can only save their lives by finding water sources as soon as possible, otherwise they will die of dehydration.

Some traces of animals can be used to find water, after all, animals also need to drink water, and they will be more familiar with the terrain. The second is to draw water from the limited greenery.

In the desert, you should use your drinking water rationally and drink it in small quantities to maximize the use of water. Pay attention to the night walk, the temperature is high during the day, the water consumption is high, you can rest, and walk at night. Finally, learn to find water, which can be judged by the walking marks of animals and plants.

When there is a shortage of water in the desert, humans should pay attention to the footprints of animals and follow them to find water sources, so as to save lives.

First of all, you can find water according to the footprints of animals, then you can get water through plants, and finally you can get water through the conditions of large temperature differences in desert white nights.

Dig where reeds grow to see if there is water, minimize daytime activities, and find a shady place to take shelter.

The most important thing is whether you can hydrate and protect yourself from sun exposure and sweat loss. Look for plants that have lots of water.