Tree shaping and pruning Technology-Mountain Pinus tabulaeformis Modeling

Tree shaping and pruning Technology-Mountain Pinus tabulaeformis Modeling

(1) the whole idea of modeling.

① thinning and liberating the trees whose crown is larger than 1 / 2 and the tree shape is more satisfactory. As a normal nursery stock, we can simply clean up the dead branches of this kind of trees.

② flattened the trees whose crown is smaller than 1x2 and greater than 1canopy 3, and the trunk is relatively straight, which is used to cultivate welcome trees in the market. For this kind of trees, the topping at the top of the tree tip should be determined according to the tree situation, generally in the range of one to two meters, not too large, this kind of tree should choose a small class suitable for operation, and the training height is generally between 6m and 8m, with a scale; focus on the cultivation of trees with curved branches, peculiar tree shape and strange tree characteristics.

③ needs to work for the two Pinus tabulaeformis which can not be cultivated as odd trees, and the crown types of the two trees are similar, the sunny trees should be cut down, and the residual trees with different crown types should be cut.

The trees with straight stem type, ultra-high and super-thick ④ and difficult transportation (height more than 12m, crown width more than 8m) do not do large seedling culture.

(2) because of the "potential" modeling

Because the seedlings of Pinus tabulaeformis are commodity resources, it is impossible to prune them from their infancy. The most important feature is that most of the trees have formed an inherent growth form in the early growth stage, that is, a kind of "potential" which is difficult to change. In principle, in the later growth stage, it is difficult to change the trunk of Pinus tabulaeformis seedlings in a short period of time, so it is necessary to analyze and delete the lateral branches according to the existing different growth states of different seedlings, pruning, cultivating and banding the lateral branches in turn as the key point. further adopt reasonable modeling means and methods to promote the growth and formation of Pinus tabulaeformis, forming different models of Pinus tabulaeformis seedlings.

Fig. 1 comparison of the shape of Pinus tabulaeformis due to "potential"

Figure 2 Pinus tabulaeformis seedlings

(3) pay attention to hierarchical construction.

The treatment method of hierarchical relationship in bonsai art can be used in the process of seedling modeling and pruning of Pinus tabulaeformis. Pinus tabulaeformis sprouts with many parallel branches, and it is easy to form relatively flat branches and leaves, and it is easy to form layers by manual operation and pruning. Finally, the branches and leaves are trimmed to form several layers of horizontal clouds.

Fig. 3 hierarchical pruning of Pinus tabulaeformis

The density of ① hierarchy

Pinus tabulaeformis seedlings without pruning or simple treatment mostly maintain the original growth trend, with luxuriant branches and scattered branches. Therefore, when pruning, not only the growth requirements of plants should be considered, but also the modeling levels of Pinus tabulaeformis should be clearly combed, and the redundant branches and leaves on the backbone should be removed boldly, and the sparse parts can reach "sparse walking horses". The dense parts can be "tight". It is necessary to pay attention to the combination of density and density, break the shortcomings of monotonous modeling, and make the composition lively, full of levels and contrast. There are sparse and dense, the two complement each other, sparse foil can reflect the tight level, there are dense branches and leaves can see sparse embellishment.

The spatiality of ② hierarchy

The spatial nature of Pinus tabulaeformis includes the high and low stratification of branches and leaves and the front and rear delamination. The high and low stratification of Pinus tabulaeformis is easier to deal with, but the front and back branches and leaves are easy to be ignored in the early stage. There is no level before and after, only mid-range, appears too ordinary, as thin as a piece of paper, no three-dimensional sense. Therefore, if you deal with the successive levels, the shape of the whole plant will appear rich and heavy. Pinus tabulaeformis seedlings viewed from all angles can withstand the test must have different levels before and after, and even achieve the artistic effect of "step-by-step scenery".

(4) pruning essentials

According to the pruning order from top to bottom, from outside to inside, from coarse cutting to fine pruning, pruning coarse branches first and then pruning fine branches. First pruning, pruning dead branches, overgrown branches, whorled branches, stacked branches; then styling, trimming the shape and hierarchy according to the requirements of the tree.

(5) points for attention

The branching ability of ① Pinus tabulaeformis is not high, which requires us to retain the 1-year-old shoots on the top side branches of the flat-headed trees and retract the 2-year-old branches so that the upper branches and leaves are finally trimmed to form several layers of horizontal clouds.

② mountain seedlings have a large tree body, so it is necessary to consider its vegetative growth and retain more branches to coordinate its vegetative growth and reproductive growth. In this way, the tree will recover much faster.

③ Pinus tabulaeformis should be modeled according to the tree, not stereotyped, but should be matched with high and low, space utilization and seedling wood utilization.

The key branches and leaves (interest branches) of ④ should be improved.