Harm of piling up mountains with sand

Stability decreased and root system was damaged.

1. Stability decline: As a loose filler, sand lacks solid support. Long-term maintenance of downhill piles with sand is easily affected by weathering, erosion and water erosion, which leads to the decline of stability of downhill piles.

2. Root damage: The roots of downhill piles need stable environment and nutrients during their growth. Using sand to maintain downhill piles, the nutrients in the sand are limited, which can not meet the nutrients needed for the growth of downhill piles. At the same time, the looseness of sandy soil also leads to the damage of the root system of downhill piles, which affects their growth and development.