Chernozem (/ ˈ tʃ ɜːr n ə z ɛ m / CHUR-nə-zem), [a] also called black soil, regur soil or black cotton soil, is a black-colored soil containing a high percentage of humus [3] (4% to 16%) and high percentages of phosphorus and ammonia compounds. [4] Chernozem is very fertile soil and can produce high agricultural yields with its high ...

2014年1月1日 · The geographical localization of the Bulgarian chernozems is associated with the most southern occurrence in Europe. This fact determines specific bioclimatic conditions manifested by the enhanced mineralization of organic matter. Bulgarian soils produce relatively small humus content compared to the chernozems in other parts of the world.

Derived from the Russian words cherniy meaning black and zemlya meaning earth; and from the Latin word mollis meaning soft. A group of comparatively deep, dark colored, well structured soils developed on the calcareous loess-like materials and characterized by mull type of humus accumulation. 2.2 Concept of the Type Main concepts 1.

2018年9月11日 · Bulgarian proposal for definition of Black Soils: 1. Group of chernozems – etalon for soil’s potential productivity result of balanced accumulation of humic organic substances and development of remarkable structure in a harmony with processes of natural ambient environment 2.

Northern Bulgaria is characterized by the fertile black-earth soils known as chernozems and also by gray soils of forest origin. Southern Bulgaria has forest soils with acidic (cinnamonic) traces—by far the most extensive single category—as well as the modified chernozems known as chernozem-smolnitzas (a dark-coloured zonal soil with a deep ...

2024年6月19日 · In this review, the current status and driving factors of soil degradation in the four major black soil regions of the world are summarized, and effective measures for black soil conservation are proposed.

Bulgarian S oil Science Society (BSSS) was founded in 1942 with the aim to acquaint the general public with soil science, with an emphasis on the importance of soil. This original mission of BSSS is more relevant than ever in the public debate for the conservation of soil resources.

2024年11月8日 · Soils are the foundation of our existence and are – besides water, air, animals and plants – the most valuable and the most worthy of protection goods of mankind. We want to create awareness for the variety but also for the endangered status of …

6 天之前 · Black Soils make up only 7% of the land surface but they are of fundamental importance to food security; UN Sustainable Development Goal 2—to end hunger, achieve food security and improved nutrition, and promote sustainable agriculture by 2030—will only be achieved if we introduce a mandatory framework for their sustainable management.

The fertile soil and abundant water in Bulgaria make it a prime location for agriculture, with crops like wheat, corn, and sunflowers. Bulgaria’s water resources include rivers, lakes, and hot springs, providing opportunities for tourism and hydroelectric power.