SU912076A1 - Antierosion trench - Google Patents

Description

(54) ANTI-EROS TRANSLATION

one

FIELD OF THE INVENTION The invention relates to agricultural households, in particular to protecting the soil from water erosion, and agroforestry.

There is a known method of protecting the soil from water erosion by creating water-absorbing ditches, which are filled with organic fillers (straw, tops, grapevines, etc, t.) C.

The disadvantage of this method is a short (3-4 years) anti-erosion effect.

There is also a known method of combating soil erosion, which includes a furrow neck, filled with organic material (straw, manure, peat). When cutting such a grooved bottom and the walls of its rifts, and after backfilling, the trenches create dividingly ridging rollers-bluffs. The method is applicable in most cases between the gardens, as anti-erosion-soil-cultivating-2.

One of the drawbacks is its non-vigorous effect with relatively low water-absorbing capacity.

The purpose of the invention is to protect the soil from water erosion, increasing its fertility using forest waste from thinning of forest belts.

The goal is achieved by constructing stepped trenches on the agricultural land with vertical walls of trenches to the depth of the parent rock of up to 0.8-1 m, followed by filling with rough chips of solid rocks of the first stage

10 and softwood sawdust first half of the second stage.

The trench is placed across the main slope in 50-75-100 m. In the autumn of each year, the culvert is cut into the trench.

15 slot, in the first three years before the oshshok and in subsequent years before the chips.

FIG. 1 shows a trench filled with soft and hard wood waste; in fig. 2 - the same, after horizontal silting; in fig. 3 is a scheme for placing trenches on a farmland.

FIG. 1-3 shows a trench 1, a permanent earth shaft 2, a temporary shaft 3, the first stage 4, the second stage 5, hard material chips with a larger fraction 6, sawdust soft rocks 7, ground for filling sawdust 8, silt 9, culvert 10. Example. A site is selected that has been subjected to water erosion by the activioll and is suitable for digging out a protrusion erosion trench. During the first pass, a second step 5 is created to a depth of 30-40 cm, while the second is the first step 4 to a depth of 70-80 cm. The width of trenches in the upper part is up to one meter or, depending on the size of the excavator bucket, the walls and bottom should be grooved . After digging up, the trench is decimated by shavings of crumbled fractions of rock 6 to the upper level, i.e. to the second stage 5. Further, up to half the depth of the second stage, 7 soft rocks are sawdust. From the temporary shaft 3, evenly over the entire width, trenches are crushed with earth 8 overhead saws, while creating cross-section slots 11 through 40-50 m. On the slopes, the soil is washed out annually, resulting in deposition of silt 9. In the autumn of each year, over a chip 6, a slit is cut 10. Within three years, this gap is cut to sawdust 7, cut silt 9 and ground 8. After this period, for the fourth year and further, slot 10 is cut to a depth of 6 chips of hard rock. Such technology makes it possible to quickly pass water into the inside of the trench during the dggley period of time - 8-10 or more years. Moisture is partially accumulated, and partly transferred to the subsurface runoff at great depth. Terrain 1 is constructed in field crop rotations, orchards and other agricultural land, 75–100 m, and in the case of steep slopes (12–15 °), 50. After 7–10 years, this trench 1 is repeated in this the same sequence, but next to the previous 4, indentation of 6-10 m. Ash trenches are made across the main horizontal slope of the piece on the slopes of the relief. Trashi is soil-protective. When felling woodland strips, waste after appropriate crushing is used for anti-erosion purposes, i.e. trenches are filled up with them, which dramatically increases the service life of the erosion control measure, by about 3-4 times or by 5-8 pet. With the proposed technology, the soil conditions improve and its fertility improves. According to preliminary estimates, the savings are 39-52 r. on 1 hectare in field crop rotation and 60-65r. in gardening. Labor productivity increases by 2-3 times. An anti-erosion trench comprising a periodically recurring deep furrow with corrugated walls and a bottom with transverse earthen spur rollers, characterized in that, in order to protect the soil from water erosion, to increase its fertility from the use of waste after felling of forest belts, construct a stepped trench with vertical walls to the depth of the parent rock and collapse it with coarse shaving of solid rocks of the first stage and sawdust of soft breeds at half of the second stage, which is covered with earth to bschey ground surface, and in the fall of each year culvert cut a slit in the first three years before the sawdust and in subsequent years to the chips. Sources of information taken into account during the examination 1. We will block the path of erosion. Rostov, 1970, p. 148-152. .2. USSR Author's Certificate No. 328835, cl. A 01 B 13/16, 1972 ..

Claims (1)

Formula of the invention Anti-erosion trench, including a periodically repeating deep groove with corrugated walls and a bottom with transverse earthen spurs, 25 characterized in that, in order to protect the soil from water erosion, increase its fertility from the use of waste after thinning, the trenches are constructed with a trench with ₃₀ vertical walls to the depth of the parent rock and they are covered with rough shavings of hard rocks of the first stage and sawdust of soft rocks half of the second stage, which is covered with earth to the total daily surface, and in the autumn of each year, a culvert is cut, in the first three years to sawdust and in subsequent years to shavings.