In harsh environmental areas such as the Tibetan Plateau, can high yielding crops such as sweet pota

Permafrost is usually distributed at a depth of about 30 40 km underground in high-latitude areas above 48 degrees south latitude or in high-altitude plateau mountains, which are divided into glacial thaw and permafrost according to whether the permafrost thaws in summer or not. The upper layer melts in the summer as the temperature rises in the winter, and when the temperature drops, it freezes called the glacial thaw layer (active layer), and the lower layer is frozen all year round and is called permafrost or the sea and land area of the earth's surface is about 733603 in the northern hemisphere.

The land area of the Southern Hemisphere is the Southern Hemisphere.

There are many highlands and mountains in the northern hemisphere, especially the highest plateaus in the world, so the permafrost area in the northern hemisphere is much larger than that in the southern hemisphere. Since permafrost is a "specialty" of alpine regions, its thickness generally thickens with increasing latitude or altitude (or is related to the high or low altitude of latitude). For example, the average annual low temperature in the Arctic is around minus 15, and the permafrost thickness in the region can reach more than 1,000 meters.

Cas. Yu Fujun, executive deputy director of the State Key Research Institute of Permafrost Engineering of the Northwest Institute of Ecology, Environment and Resources, came to Pingchuan County, Hebei Province, and found 7 8 caves on a hillside with a depth of about 1 meter to 1 meter, and found permafrost under the surface according to the caves. When Deputy Director Niu looked deeper into the cave, the interior was hit by cold air, and the real-time surface temperature was measured to be close to 33 degrees, and the temperature inside the cave was only minus degrees, and the local people knew that this low temperature was used as a "refrigerator" a hundred years ago.

Corn planting in China has reached more than 10 provinces, such as Shandong, Henan, Hebei, Anhui and so on. At present, the distribution of corn in various regions of China is uneven, from the northeast to the southwest inclined corn planting belt, Beiqi Heilongjiang Province Nahe, Nanhai Nancheng, Northeast Plain, Loess Plateau.

The western mountainous area of Hubei Province and the Sichuan Basin.

Surrounding mountainous areas, Yunnan-Guizhou Plateau.

Corn grows in all seasons, so corn can be said to be divided into six planting areas in China. According to the seasonal climate, spring sowing corn is the main part of northern China, and summer sowing corn is the main part of the southern plain. Divided by the topography and geology, which is inversely proportional to the altitude, the terrain is caught off guard by the reduction of planting area and yield in Wanwan.

It is distributed in the southwest mountainous area, the southern hills, the northwest irrigation area, and the Qinghai-Tibet Plateau.

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Corn has a short growth cycle and high requirements for lighting, temperature and moisture. At the same time, it is a temperature-loving crop and has a high sensitivity to temperature. The temperature is best between 10 and 38 in corn planting, Tween.

At 20-24 the most suitable for the growth of roots. Corn is a short-day crop that requires intense light throughout its growth and development, starting with germination. Due to the saturation of light.

High, resistant to strong lighting, grows faster under strong lighting, and vice versa. Maize has a large demand for water, affected by the length of the growth period and seasonal climate change, the water consumption in different growth periods is also very different, from sowing to seedling, the demand for water is small, and the rest of the growth period must meet the demand for water.

Because the Qinghai-Tibet Plateau has a relatively thick permafrost layer, the perennial temperature is low, and the environment is not friendly enough for the growth of sweet potatoes and corn, so the Qinghai-Tibet Plateau rarely grows sweet potatoes and corn, and more crops such as barley and potatoes are planted.

In harsh areas such as the Tibetan Plateau, high-yielding crops such as sweet potatoes and corn cannot be cultivated. Because these crops cannot adapt to the harsh environment of the Qinghai-Tibet Plateau, it is difficult to achieve high yields.

Of course, it can be planted, because that place is different, especially a lot of fertilizer, and it also has a lot of water.

Highland barley is not only the main crop of the Qinghai-Tibet Plateau, but also gradually formed a unique highland barley culture on the Qinghai-Tibet Plateau with the evolution of time and the course of historyThe people of Tibetan areas will make barley into a variety of delicacies, as well as unique barley wine, which has given barley a unique spiritual connotation and culture, and now barley has become a symbol of national characteristics, and has become a food that must be tasted in the plateau area.

There are crops on the Qinghai-Tibet Plateau, barley, wheat are planted, barley is the main crop, they generally eat food made from barley, the name is tsamba, and also drink barley wine and butter tea.

The Qinghai-Tibet Plateau is not a crop that cannot be cultivated, their main crop is barley, which is also one of their important foods.

Although the Qinghai-Tibet Plateau is not suitable for growing most crops, there are still crops that can be grown, such as "highland barley", which is also a common food for Tibetans, such as highland barley wine and highland barley noodles.

Local farmers on the Qinghai-Tibet Plateau mainly grow highland barley, which is cold-tolerant and drought-tolerant.

Most of the Tibetan people are based on mutton and dairy products.

The Qinghai-Tibet Plateau can grow crops, in the valley of the middle reaches of the Yarlung Zangbo River in the south of the plateau, the average altitude is about 3,500 meters, the slope is gentle, the soil layer is deep, the climate is pleasant, the water source is more sufficient, the natural conditions are superior, it is suitable for the growth of crops, the cultivated land is relatively concentrated, the planting industry occupies an important position, it is the main rich agricultural area of the whole region, highland barley, wheat, peas and rape are the four major crops here, one year is ripe, and it becomes the main granary of the plateau.

The Brahmaputra River is in the middle reaches, the river surface is open, there are many tributaries, and there are many river valleys ranging from more than ten kilometers wide to dozens of kilometers long. The mountains on both sides of the valley are high up with pastures, forests at the waist, and fertile farmland at the valley floor and estuary, which is most suitable for highland crops such as barley, buckwheat, and wheat. Local farmers feed on barley.

The Qinghai-Tibet Plateau has a high altitude and low temperature, which restricts the development of agriculture. Agriculture in the Qinghai-Tibet Plateau is mainly distributed in the valley of the Brahmaputra River and the Huangshui Valley, because the relative temperature of the valley is relatively high, which is more suitable for the growth of crops. Permafrost is widely distributed because of low temperatures.

Hope it helps.

No, the low temperature can be artificially changed with greenhouses, but the frozen soil is underground, this thing is very troublesome, we know that the construction of the Qinghai-Tibet Railway a few years ago is to solve the problem of frozen soil in the early years.

Due to the high altitude and low temperature in Qinghai-Tibet, the suitable food crops are barley and wheat

Therefore, b

The Qinghai-Tibet region is mainly distributed in Qingchang, Tibet, Gaowangshouyuan, Nai Ling, the terrain is plateau and mountainous, and agriculture is dominated by alpine animal husbandry such as yaks

Therefore, d