The blackland is only on the world 3 chunk, be in together America, be in Europe together, another distributings in our country northeast area, area of so-called and northeast blackland.

• 黑土是人类赖以生存的宝贵资源。黑土在世界上仅有三大块,一块在美洲,一块在欧洲,另一块分布在我国东北地区,号称东北黑土区。