What is the information about the desert?

The two main causes of desert formation are drought and wind. In addition, people cut down forests and trees, destroyed grasslands, and deprived the surface of the land from plant cover, thus forming deserts. The formation of deserts, in addition to arid climatic conditions and indiscriminate felling of forests and trees, and destruction of grasslands, also requires abundant desert materials**, which are mostly distributed in sediment-rich inland intermountain basins and depressions and lowlands on denuded plateaus.

Sand sources have fine-grained material from various sediments, ancient or modern. For example, the sand in China's Taklamakan Desert and Gurbantunggut Desert originates from paleofluvial alluvium; Most of the sand in the Tengger Desert, Mu Us Desert and Lesser Tengger Desert originates from ancient and modern alluvial and lacustrine deposits; The deserts in the middle reaches of the Tarim River and the lower reaches of the Southwest Korla River are derived from modern fluvial alluvium; The sand dunes of the Ulan Bu and desert and the front areas of Helan Mountain, Wolf Mountain-Bayinula Mountain** are alluvial; The remnants of the weathering of bedrock in the sand dunes in the highlands of central and western Ordos.

Desert. 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 formation are different, one is the long-term action of water, and the other is the long-term action of wind. The surface of the desert changes and moves on its own, under the influence of the wind, of course. 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 flows continue to erode the ground, causing drastic changes in the landform.

Desert mainly refers to a barren area where the ground is completely covered with sand, plants are very scarce, rainfall is scarce, and the air is dry. Deserts are also known as "sand curtains", areas where there is a shortage of water and few plants. The desert area is mostly sandy beaches or sand dunes, and rocks under the sand are often found.

Some deserts are salt flats and completely devoid of vegetation. Deserts are generally aeolian landforms. There are sometimes valuable mineral deposits in the desert, and many oil deposits have been discovered in recent times.

The desert is rarely inhabited, and the resources are relatively easy to exploit. The desert has a dry climate, and it is also a happy place for archaeologists, who can find many human artifacts and earlier fossils.

The Chinese name is desert.

The foreign name is desert

Pinyin. shā mò

Note. Synonyms Gobi.

Antonym oasis.

Another name. The sand curtain is centrally distributed.

Central Asia, northern Africa, western North America.

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1. Four-word words: endlessly

Yellow sand is long, mirage, endless, Gobi sandbar, boundless, stretching for thousands of miles, desert smoke, flying sand and stones, sand sea, reckless and vast, vast yellow sand, sand and dust, bumpy and uneven, unwinding, ups and downs, sand and soil flying, yellow sand thousands of miles, desolate, desert desert, desert oasis, wide and boundless.

2. Three-word words: open, stretching, reckless, continuous 3, two-word words: oasis, vast, boundless, Gobi, silent, desolate, vast, sand dunes, sandy beach, sand sea, sand mountain, desert, vast desert, dead silence, sand fog, scorching, baking.

(1) ( Vast ) desert.

2) ( hot ) desert.

3) ( Boundless ) desert.

4) ( Infinite ) desert.

5) ( Snowy desert ) .

6) barren desert.

Golden. Dead soil. Barren. White.

Desert. Definition 1:

The products of the dry climate on the earth's surface are generally less than 250mm of average annual rainfall, sparse vegetation, less surface runoff, and obvious wind action, resulting in a unique landform pattern. Such as all kinds of sand dunes, wind erosion and bad ground, etc.

Desert (shā mò) refers to a barren area where the rock face of the ground is completely covered by sand, the vegetation is very scarce, the rain is scarce, and the air is dry. Deserts, also known as "sand curtains", refer to areas where the ground is completely cracked and covered by sand, and there is a drought and lack of water, and plants are scarce.

There is sand everywhere, and there is no end in sight to the desert!

Endless desert.

The vastness of the desert.

Uninhabited desert.

Dusty desert.

Chinese name: desert.

Product Name:sandy desert; Desert Definition 1: The product of the dry climate on the earth's surface, generally with an average annual rainfall of less than 250mm, sparse vegetation, less surface runoff, and obvious wind action, resulting in a unique landform pattern.

Such as all kinds of sand dunes, wind erosion and bad ground, etc.

Applied Disciplines: Geography (first-level discipline); Definition 2 of Desertology (Secondary Discipline): It is an area covered by quicksand and sand dunes. Applied disciplines: soil science (first-level discipline); Soil Erosion and Soil and Water Conservation (Secondary Discipline).

A desert (shā mò) is a barren area where the ground is completely covered with sand, plants are very scarce, rain is scarce, and the air is dry. Deserts, also known as "sand curtains", refer to areas where the ground is completely covered with sand, drought and lack of water, and plants are scarce.

Desert ash is blasted.

Desert-Grey TD is a diagram of team practice AK.

Quite a classic diagram too.

If you dig up all the sand in the desert, what will happen under the desert? After reading the knowledge.

Cactus. Cactus. Because deserts are generally hot and dry.

There are people in the desert, because many people die of thirst in the desert.

Cactus, sand, tornadoes.

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One-third of the Earth's land is completely covered with sand, and vegetation and rainwater are very sparse. Due to the scarcity of water, deserts are generally barren and inaccessible. Although there is not much life in the desert compared to other lands, there are still many plants hidden in it, and there are animals that only come out at night.

Deserts are generally wind-formed, and most of them are sandy beaches and dunes, and there are often rocks under the sand. In addition, the soil in the desert is very thin, there are few plants, and some deserts are still salt flats, and there is no vegetation at all.

Although the distribution of plants in the desert is relatively small, there are still many species, such as desert red willow, which are resistant to drought or salt. It also rarely rains in the center of the desert, and the desert is often fed by rivers that flow from the nearby mountains, and although these rivers carry a lot of earth, they dry up after a day or two of flowing in the desert. But occasionally it rains in the desert, often in torrential rains, and at this time, the normally dry rivers fill up quickly and are prone to flooding.

If there is enough water in the desert, seasonal lakes are formed, which are generally shallow and salty. Because the bottom of the lake is very flat, the wind will blow the lake away for dozens of square kilometers, and when the dry lake dries, a salt flat will be left.

There are also several strange phenomena in the desert, and mirages are one of them. A mirage is a natural phenomenon formed by the refraction of light, that is to say something that is ethereal and does not actually exist. The mirage can be seen occasionally in the desert, it is the true embodiment of another space, reflected in another space under the movement of matter.

Mirages often occur after rain due to the high humidity of the air at this time, which forms a lens system.

When the temperature near the ground in the desert changes drastically, the density of the atmosphere varies greatly, and the distant scenery causes a mirage when the light is propagated, abnormal refraction and total reflection occur.

The mirage is divided into upper, lower and lateral mirage, the sand and gravel in the desert are hot by the sun during the day, and the air will rise quickly when approaching the sand layer, thus forming the temperature distribution of the upper layer is cold and the lower layer is hot, and the density of the upper layer is greater than that of the lower layer. The light of the scene in front of you will be refracted by the dense penetrating air to the less dense air, thus forming a mirage. Viewed from a distance, it looks like a reflection in the water.

If a person is thirsty in the desert and sees a mirage, he will mistakenly think that he has found an oasis, but after a gust of wind, the scene disappears again, and it is nothing more than a mirage.

Although the mirage is beautiful, desertification is caused by natural drying factors and excessive animal husbandry, so keeping the land moist can only be reversed by allowing the moisture retention to be greater than the dryness.