In steep terrain in mountains, landslides can occur in the case of poorly consolidated materials such as soil material, boulders and rubble due to the influence of precipitation events. The material “flows” down the valley at high speed. This process is called a mudslide.
“Mulching” means covering the soil with organic material. This ensures that the soil is protected from physical effects such as drying out, erosion, excessive overheating, silting up, etc. Mulch covers have a temperature-regulating effect and serve as a nutrient depot. In many cases, mulching replaces deep soil cultivation.
Various materials are suitable for mulching. For beds and vegetable gardens green manure, straw, leaves and compost are best. Bark mulch, cocoa shells or inorganic materials such as lava or sand can be applied in shrub beds. Bark mulch, wood chips, leaves, etc. are a good choice for mulching trees and groves.