Soil conservation device for ecological restoration

The soil conservation device comprises a conservation plate with the hollow interior and an opening in the upper end, the lower end of the conservation plate is communicated with a plurality of insertion teeth with the hollow interior, the bottom of the lower end of each insertion tooth is provided with a drainage hole, and the conservation plate is provided with a filter layer at the upper end of each insertion tooth. A water inlet is formed in one side, above the filter layer, of the conservation plate, a blocking plate capable of sealing the water inlet is arranged in the conservation plate, a filter screen covers the water inlet, and a cover body capable of being opened is arranged at the opening end of the conservation plate. When in use, the tree nursery plate is inserted into the periphery of a tree, water is injected into the nursery plate and is discharged from the water outlets on the insertion teeth, the water penetration depth is increased, the water loss speed is slowed down, tree rooting is faci