SU1178358A1 - Method of growing forest cultures of coniferous species - Google Patents

Abstract

A METHOD FOR CULTIVATING FOREST CULTURES OF CONIFEROUS BREEDS, including planting the main species of seedlings in 1.5 m rows and cutting down every sixth row in the age of clarification, and every third row in the age of cleaning, in order to increase the stability and productivity of plantations, as well as simplifying the process of thinning, the main breed seedlings are planted with a variable planting step, with every sixth row of the seedling planted with a planting step of 0.6-0.8 m, in every third row - with a step landing 0.9-1.1 m, and in the rest of the range - with steps planting 1,3- 1,7 m, and in the latter case between ce ntsami main species are planted shrub ,, and starting with age thinnings in rows thinning is carried out.

Description

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The invention relates to forestry and can be used with the mechanized technology of growing coniferous trees.

The purpose of the invention is to increase the sustainability and productivity of plantations, as well as simplify the process of thinning.

In contrast to the known method of growing coniferous forest crops with a spacing of 1.5 ms with a constant planting step in rows (0.7 m), in the proposed method, every sixth rows are planted with a planting step of 0.6-0, 8 m, and every third - with a landing step - 0.9-1.1 m, and in the rest of the rows - with a landing step - 1.3-1.7 m.

The specified boundary intervals are determined by the technical possibility of using the step of planting tree planting machines on uncorrupted cutting areas taking into account mechanical obstacles encountered (stumps, roots, root paws, logging residues, etc.).

The used planting step ensures the closure of the crowns with the distance between the plants in the row:

at 1.5 m. 6-8 years;

at 1.0 m5-6 years;

with 0.7m4-5 years.

Increased differentiation of trees in rows, due to the interaction of plants, and with it the need for forest management arises during the planting step:

1.5 m - at the age of thinning 25-30 years 1.0 m - at the age of scrubbing 13-16 years;

0.7 m - at the age of clarifications 7-8 years.

The total planting density is 5170-6424 plants per 1 ha, which, from an economic and biological point of view, is reasonable and ensures the quick closure of the canopy of tree crowns (5-6 years).

The introduction of shrubs in rare rows (with a 1.5 m step), alternating with the main breed, increases the resistance of these rows against retaining crops of grass vegetation and reducing the number of agrotechnical cares in rows of crops.

The formation of tree crowns in rare rows of regular shape, the absence of oppressed trees with an eccentric crown shape ensures the stability of trees against snow break and ozheledi.

In the well-known method of growing forest crops, every sixth rows at the age of clarification are first cut down, and then every third row at the age of cleansing with necessary thinning in rows. In the proposed method, the age of clarifications (up to 10 years) in these cultures is cut down on New Year trees or softwood feet every 6th (1.5-1.8 thousand plants per 1 ha). At the age of clearing up to 20 years old, they are cut down every third row (1–1.2 thousand plants per 1 ha). Rareings in rare rows at the age of clarifications and cleansing are not performed due to the lack of increased differentiation due to the interaction of plants during this period of growth.

After cuttings of whole rows at the age of clarifications and cleansing, for further growth, 2.6–3.4 thousand plants per hectare remain.

Rare rows, planted in 1.5 m increments and alternating with shrubs,

5 require not linear, but uniformly selective thinning at the age of thinning (25-30 years).

The absence of fresh stumps and mechanical damage in rare species of the same age of thinning and the formation of trees in

The more rare mode of cultivation makes them more resistant to thinning with a root sponge.

Due to the greater nutritional status since the creation of crops in rare rows

powerful trunks are formed with the correct shape of the crown and, unlike the cultures represented in the known method (1.5 X X 0.7 m), without weaving the crowns, which increases the resistance of the crops to snowbreak.

0 In addition, the proposed method of growing crops makes it possible to reject very laborious and economically unprofitable rarefactions in rows during clarifications and cleansing the age of thinning, at which it is harvested, which is mostly illiquid.

5 wood.

Claims (1)

METHOD FOR GROWING FOREST CROPS OF CONIFEROUS BREEDS, including planting seedlings of the main breed in rows after 1.5 m and cutting down every sixth row at the age of clarification, and every third row at the age of cleansing, characterized in that, in order to increase the stability and productivity of plantings, as well as simplifying the process of thinning, seedlings of the main breed are planted with a variable planting pitch, while in every sixth row seedlings are planted with a planting pitch of 0.6-0.8 m, in every third row with a planting step of 0.9-1, 1 m, and in the remaining rows - in steps planting 1.3-1.7 m, and in the latter case, a bush is planted between the seedlings of the main breed, and starting from the age of thinning, thinning is carried out in the rows. m QO CO Si QO