Look for an explanation of the terrain

Salt Lake Bar. A salt lake is a type of saltwater lake, a lake with a high salinity (mainly chloride) in arid areas. The evaporation of lake water is greater than or at least equal to the amount of precipitation and the recharge of surface groundwater to the lake, and the concentrations of CL-, SO42-, HCO3-, CO32-, Na+, K+, Mg+, Ca2+ and other concentrations in the lake are very high, and the salt content is exceeded.

The evaporation of Qaidam Basin in China reaches 2400-2600mm, which is 30-50 times of the annual precipitation, forming many salt lakes, such as Zarkhan Salt Lake, Chaka Salt Lake, etc. The precipitated salts can be divided into new sedimentary salts, old sedimentary salts and solid salts according to their genesis and morphology. Solid salt constitutes a salt mining area and is an important mineral resource, and the Giltai salt pond is one of the famous salt lakes in China.

The salt lakes of Qinghai are mainly distributed in the Qaidam Basin, where there are more than 30 salt lakes such as Zarhan, Chaka, Dabsun, Dachaidan, Xiaochaidan, etc., and the lake contains nearly 10,000 kinds of minerals and more than 40 kinds of chemical components of brine, which is an important treasure house of China's inorganic salt industry. The shape of salt is very peculiar, some like dazzling pearls, some like blooming flowers, some like crystals, some horn gems, so there are many beautiful and moving names such as pearl salt, glass salt, stalactite salt, coral salt, crystal salt, snow salt, mushroom salt, etc.

Foreign salt lakes are mainly found in the northern Pampas steppes of the Andes Mountains of South America.

Zarhan Salt Lake is the largest salt lake in China, more than 60 kilometers away from Golmud City, and the 32 kilometers of the Qinghai-Tibet Highway across the lake are all paved with salt, which is called "Wanzhang Salt Bridge".

Chaka Salt Lake, with an area of 105 square kilometers and a salt storage capacity of more than 440 million tons, has been exploited for more than 3,000 years. Visitors can enjoy the scenery of the salt lake here, and also visit the mechanized salt mining operation, and the small train leading to the center of the lake is a popular vehicle for tourists. Chaka is 300 kilometers away from Xining, you can take the long-distance bus to Chaka, Birdland, Delingha and other shifts, Chaka Salt Factory can provide convenience for tourists' accommodation and accommodation.

Haiyuan Salt Lake: Located in the center of the Yanchi Basin, it is 1,980 meters above sea level and has a total land area of 950 meters. It is surrounded by Xihua Mountain and Huangjiawa Mountain in Jingyuan County, Gansu Province, the spring stream in the mountain, the stream flows into the lake, the water of precipitation and snow collects the salt pond, although it is not exhausted after a hundred generations.

The soil around the salt lake is rich in minerals such as miscanthus nitrate and sodium chloride, which are easily soluble in water and migrate to the center of the depression. Its basin covers an area of 52 square kilometers, and groundwater is discharged to the surface to form an inland lake, the salt lake.

Quartz surfaces that may experience high temperatures and pressures; It could also be saline surface.

It could be a dry salt lake, and there is such a terrain in western China.

Question 1: What are the main characteristics of the regional topography from which slag lifting is generally derived? Generally, it is from three aspects: topography, topography, and main topographic areas.

For example, the snow-capped mountains of the Qinghai-Tibet Plateau are continuous and the terrain is high; The main topographic areas are the Northern Tibetan Plateau and the Southern Tibetan Valley.

Question 2: What are the aspects of physical geographical features to answer topography (geomorphology), climate, hydrology, soil, and vegetation.

Physical geography is made up of a number of elements. Topographic features include terrain type, distribution, undulating terrain, typical landforms, and terrain formations. Climatic characteristics include temperature, air pressure, precipitation, and wind direction, among others.

Hydrological characteristics include runoff, flood season variation, sediment content, ice period, etc. Vegetation characteristics include type, distribution, typical plants, and indicative effects on the environment.

Question 3: What aspects of topographic features are included ???1.Type of terrain (plain, mountainous, hilly, plateau, basin, etc.).

2.Altitude The terrain is undulating.

3.The main topographic distribution.

4.Special topography.

5.Important topographic profile features.

The topography of a place can be determined by the elevation of the place and the size of the slope of the surface. For example, a mountainous area is a terrain with large undulations below 500 meters above sea level.

The topography is the topography of the place, such as the first line of heaven and the Loess Plateau, etc.

The climate of a place can be considered in terms of precipitation and temperature, for example, the tropical rainforest climate is hot and rainy all year round.

There are three steps to describing the topography:

1. Briefly describe the landform (e.g., high in the east and low in the west).

2. Describe the terrain (e.g., plains, plateaus, mountains, etc.).

(1).Terrain type.

2).The terrain is undulating.

3).The main topographic distribution, spatial arrangement.