Bald frost
Kahlfrost (also Blachfrost and Barfrost , the latter from bar “merely, naked”) denotes frost near the ground, which acts directly on the top soil layer and plants due to the lack of an insulating snow cover . In forestry , agriculture and horticulture , severe or prolonged cold frosts can freeze through the upper soil layers and lead to frost dryness on winter crops and woody plants .
The expansion of water when it freezes changes the structure of the soil. On the one hand, this is desirable because it loosens the soil and leads to bottom cooking . On the other hand, parts of plants that are close to the ground or underground can be damaged. This can lead to the death of entire crops or at least to crop failures ( wintering ). Another danger is the lack of availability of liquid water in the soil. In combination with strong solar radiation, drought damage to plants can occur, especially with evergreens. In extreme locations (e.g. high mountains) this effect also influences the location of the tree line . Finally, freezing frost enables snow erosion , in which snow crystals moved by strong winds remove the soil.
See also
Individual evidence
- ↑ Kahlfrost (Barfrost) ( Memento of the original from December 13, 2013 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. in the weather dictionary of the DWD , accessed on February 7, 2012.
