In which areas of our country is chernozem distributed? What is suitable for growing?

In which areas of our country is chernozem distributed? What is suitable for growing? Chernozem is a kind of soil developed under meadow steppe and grassland vegetation in temperate semi-humid and semi-arid zone. it is a wetter type of calcium layer soil, which is named for its dark and dark soil color, and is located in the easternmost part of the grassland. Its main characteristic is that the accumulation of organic matter in the soil is greater than the decomposition, there is a black or gray-black fertile humus layer in the upper part of the soil layer, and there is a lime-rich calcium layer below this layer or in the lower part of the soil, hence the name.

In which areas of our country is chernozem distributed?

Chernozem is mainly distributed in the western part of Eurasia and North America, and mostly in the western part of Northeast China and the eastern part of Inner Mongolia, especially in the east and west sides of the central and southern part of Daxing'an Mountains, the middle part of Songnen Plain and the watershed area of Liaohe River. and it is more concentrated in the vertical zone spectrum extending westward to the northern slope of Yanshan and Yinshan Mountains. In Xinjiang, Gansu and Qinghai, it mostly appears in the mountains, such as the north slope of Tianshan Mountain, the south slope of Altai Mountain, the north slope of the east of Qilian Mountain, the north slope of Xi Dianshan Mountain and so on.

The west, south and mountain of chernozem are all surrounded by chestnut soil, and the northeast is connected with the black soil belt formed by moist meadows, which is often staggered with the forest soil on the shady slope and gradually transitions to gray forest soil or dark brown forest soil. In Xinjiang and Qinghai, the lower part of it is also chestnut soil, while upward it is different from the forest gray cinnamon soil on the shady slope, and then gradually transitions to subalpine meadow soil. From the perspective of this adjacent relationship, it can also show that the environmental conditions of chernozem are relatively humid.

What is black calcium soil suitable for planting?

In China, chernozem area not only has a large area of agricultural land, but also has vast and high-quality natural grassland, but also a key area for the construction of shelterbelt, which has the basis and advantages for the development of planting, forestry and animal husbandry. As far as farming is concerned, chernozem is a soil with high potential fertility, and a considerable part of it is suitable for the development of food and oil crops (such as corn, millet, wheat, sunflower and sugar beet, etc.), especially the high yield of wheat. therefore, the area where this soil is distributed is called the world granary.

The main limiting factors of chernozem are lack of water, frequent drought and need for supplementary irrigation. The Piedmont platform on the eastern slope of the Daxing'an Mountains and the central part of the Songnen Plain are rich in groundwater resources and can be exploited. In areas without irrigation conditions, crop rotation and shelterbelt construction can be carried out.