Tree pit structure

The utility model relates to a tree pit structure which comprises a pit groove and root balls used for planting trees in the pit groove, the depth of the pit groove is larger than the height of the root balls, a primary backfill soil layer is arranged at the bottom of the pit groove, the upper surface of the primary backfill soil layer is flat, and the height between the primary backfill soil layer and the top of the pit groove is the burying depth of the root balls. The root balls are placed on the primary backfill stratum, the primary backfill stratum is filled with a planting backfill soillayer, and the top face of the planting backfill soil layer is higher than the root balls. The tree planting device has the effect of improving the uniformity of tree planting. 本实用新型涉及一种树坑结构，其包括坑槽，坑槽内用于栽种树木的根球，所述坑槽的深度大于根球的高度，所述坑槽的底部设置有初回填土层，所述初回填土层上表面平整且与坑槽顶部的高度为根球埋入的深度，所述根球放置到初回填地层上，位于初回填土层上填充有种植回填土层，所述种植回填土层的顶面高于根球。本实用新型具有提高树木栽种整齐性的效果。