Definition of terms in code for construction and acceptance of urban landscaping projects

The following terms and definitions apply to this standard.

(1) Greening project: planting projects such as trees, flowers, lawns and ground cover plants.

(2) Planting soil: soil with good physical and chemical properties and suitable for the growth of garden plants.

(3) Exotic soil: replace the soil unsuitable for planting in the planting site or hole with soil suitable for planting, or mix some cultivation substrates to improve physical and chemical properties.

(4) Planting soil thickness: the soil depth required for the normal growth and development of plant roots.

(5) Planting holes (slots): holes dug by planting plants. Round or square holes are called planting holes, and long holes are called planting grooves.

(6) Regular planting: a planting method of planting according to certain rules.

(7) Natural planting: the plant spacing is unequal, and asymmetric natural planting is adopted.

(8) Soil ball: when digging seedlings, cut off the roots according to certain specifications, use spherical soil to keep the roots of seedlings, and bind and package them.

(9) Bare-rooted seedlings: seedlings with no soil at the root or only protective soil when digging roots.

(10) Follow-in: When the seedlings cannot be planted in time, temporarily bury the roots of the seedlings with moist soil.

(1 1) Pruning: before planting, the branches and roots of the seedlings are thinned and chopped. Pruning branches is called pruning, and pruning roots is called pruning.

(12) Thinning: Cutting branches from the base of branches is called thinning or thinning.

(13) Short cutting: Select suitable buds from the branches, and cut the branches short to stimulate the lateral buds to germinate.

(14) Height of branch point: the height of the tree from the ground to the first branch point of the crown.

(15) ventilation fence of tree pond: an iron fence and other structures that protect tree holes from human trampling and keep them ventilated.

(16) Fish-scale caves: many fish-scale soil weirs built on steep slopes to prevent soil erosion when trees are watered.

(17) Cave soaking: water the tree holes before planting.

(18) Survival rate: the percentage of surviving seedlings after planting.

(19) Planting trees in non-planting season: planting trees outside the normal planting season.

(20) Preservation of seedlings in soft containers: Plant the seedlings in soft containers (made of degradable materials), bury them in the soil for routine maintenance, and bury them with the soft containers when transplanting.