Dark sierozem is a type of soil that is rich in nutrients and organic matter. It is mostly found in the prairies and grasslands of Manitoba, Saskatchewan, and Alberta, Canada. The soil has a dark brown color due to the high content of humus and organic matter. Some synonyms for dark sierozem include black chernozem, black soil, and black earth. These types of soil are ideal for agriculture because they are fertile and can retain moisture well. Farmers who cultivate crops on dark sierozem are able to achieve high yields due to the nutrient-rich soil. Overall, dark sierozem is a valuable resource for agricultural industries in Canada.