SU1386057A1 - Method of controlling erosion on water catchment hollow areas - Google Patents

Abstract

The invention relates to rural and forestry. The purpose of the invention is to increase the efficiency of the method. 06- work the soil across the main slope. Planting of forest belts is carried out along the thalweg up the slope. Planting plantings in the form of separate blocks, placed along the thalweg at a distance equal to half the length of the snow plume, makes it possible to form deposits of snow of equal power along the thalweg line. As a result of this, during snow drift, the current flowing from the upper part of the trough watershed meets resistance at the turn of the snow deposits and dampens its speed. The speed of the stream flowing from the common watershed is damped by the resistance of the snow in front of the forest belt and the strip itself. Inside the plant, plants are planted in a staggered order, in four rows with a width of transverse aisles of 4.5–5 m “1 hp. f-ly, 1 ill. (L

Description

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The invention relates to agriculture and forestry, in particular, to the protection of soils from erosion by forest melioration plantings on arable slopes having hollows.

The purpose of the invention is to increase the efficiency of the method by reducing the soil washout and increasing the volume of safely discharged water.

The drawing shows a diagram explaining the proposed method.

Blocks of I stands, located along the thalweg line at a distance of 2, form the boundaries of the snow slope 3. Flows 4 flowing down from the watershed of the hollows and from the common watershed reduce the speed due to the resistance exerted by the snow trail and the forest belt. The trees inside the block are planted at a distance of 5 °

The method is as follows.

Soil preparation Tillage for planting a forest belt should be made from autumn to a depth of 30-32 cm, plowing across the main .-. slope, flat-cutting treatment in any direction. Plowing is carried out with the DT-75 + PPN-4-35 unit, and the flat plate is produced with the DT-75 + KPG-250. The spring before planting the forest is equalized by cultivating with the DT-75 + KNG + harrow.

General planting scheme Planting of a forest belt was carried out along the thalvega line up the slope, having previously departed from the ravine edge of 18–20 m. Planting plantings in the form of blocks placed along the thalweg, at a distance equal to half the length of the snow trail. to form deposits of snow of the same thickness along the thalweg line. As a result, during snowing, the stream flowing from the upper part of the watershed of troughs meets resistance at the turn of snow deposits and extinguish its speed. The speed of the stream flowing down from the general watershed, g sitsemu resistance due to snow, finding luminant before forest belt and the strip itself. The number of blocks, their placement on the thalweg until its completion depends on the length of the thalweg. To obtain a block landing after landing five transverse rows {with gaps 30 m) make three

Rows (with the fillings of 20 m), then the next five rows were planted, etc. According to the long-term data, the average length of the snow shafts is 40-44 m, therefore the distance between the blocks is 20 m. Planting trees inside the block - blown and tractor construction

The most suitable method of planting is the proposed method. Inside the block, trees are planted in four rows at a distance of 4.5-5.5 MB in chess order, i.e. in fact, the distance between the trees along the diagonal is 2.25-2.75 m. This arrangement of trees allows the plant to pass through a 4-5-hulled plow with a width of 1.4-1.75 m and 25-50 cm with Each side remains on a protective zone. A tillage aggregate passing through a trough located along the thalweg produces tillage across the slope. Due to this, there is no napara along the forest strip - an obstacle to the stream entering the forest belt during snow and rain showers. The flow enters the forest strip. filtered by orost it decreases, ut enshaets Runoff and soil erosion

Compared with the known method, the proposed method allows to reduce soil washout by 2 times and to dump i safely 2.5 times more water.

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about rmu l and inventions

1. A method of combating erosion at the drainage basins, including tillage across the slope and planting forest belts with a blown structure. due to the fact that, in order to achieve the efficiency of the method, the planting of forest belts is carried out along the thalweg of the hollows in the form of separate planting blocks with intervals between the blocks equal to half the length of the snow plume

2, Method of assimilation, differing from the YU and from the fact that inside the block the plants are planted in staggered order, in 4 rows with the width of the transverse inter-rows 4.5-5.5 m

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Claims (2)

The claims of the invention, equal to half the length of the snow plume, allow the formation of snow deposits of equal thickness along the thalweg line. As a result of this, during snowmelt, a stream flowing from the upper part of the watershed divide meets resistance at the boundary of snow sedimentation and extinguishes its speed. The speed of the stream, the watershed, is extinguished due to the melting of the snow, which is the forest belt and the strip itself, the number of blocks, their placement before the completion of the thalweg depends on the length of the thalweg, the block landing is five transverse: '30 m cabs) make flowing down from the common front 1. bin catchments, including cultivating the soil across the slope and planting forest strips of the blown structure, characterized in that, in order to increase the efficiency of the method, the forest strips are planted along the talweg of the hollow in the form of separate plantation blocks with intervals between the blocks equal to half the length of the snow a loop. A method of combating erosion on lodges to obtain rows after planting (with a close-pass of three 2. The method according to π.1, characterized in that the plants are planted inside the block in a checkerboard pattern, in 4 'rows' with a width of transverse row spacing of 4.5-5.5 m.