Inclined fish-scale pit forestation land preparation technology suitable for earth-rock mountain area in north China

Abstract

The invention discloses an inclined fish-scale pit forestation land preparation technology suitable for the earth-rock mountain area in the north China. Half-moon-shaped inclined fish-scale pits are dug from top to bottom in the part, inclining to form an angle of 30 degrees with the contour line, of the upper edge of the slope of the earth-rock mountain area in the north China, all the inclined fish-scale pits are arrayed in parallel, openings 5 cm deep and 10 cm wide are reserved in upper and lower mouths of the inclined fish-scale pits respectively, the lower mouth of each inclined fish-scale pit corresponds to the upper mouth of the closest inclined fish-scale pit which is arranged on the lower right, and the inclined fish-scale pits are conical bottoms with wide upper openings and narrow lower openings. According to the characteristics of the slope of the earth-rock mountain area in the north China, the inclination degree between the fish-scale pits and the contour line is changed on the basis of traditional fish-scale pit land preparation so as to facilitate large-area irrigation, irrigation efficiency is improved, and the irrigation cost is lowered. Under the condition that the engineering quantity of the inclined fish-scale pits is roughly the same as that of a traditional fish-scale pit land preparation technology, scouring of surface soil by runoff can be reduced when heavy rainfall occurs, the survival rate of forestation can be increased, and the inclined fish-scale pit forestation land preparation technology is a land preparation mode worthy of popularization.

Description

technical field [0001] The invention belongs to the technical field of afforestation and land preparation, and relates to an inclined fish scale pit afforestation and land preparation technology suitable for rocky mountainous areas in North China. Background technique [0002] The earth-rocky mountainous areas in North China are mountainous and hilly, with low vegetation coverage. In addition, precipitation is unevenly distributed in time and space. The ecological environment of rocky mountainous areas in North China has been seriously damaged, which has greatly affected the production and life of farmers in the mountainous areas. Therefore, the ecological environment management of rocky mountainous areas in North China has become a focus in recent years. [0003] Vegetation can delay slope runoff and intercept sediment, thereby reducing the loss of surface soil on the slope, increasing the stability of the surface soil on the slope, and improving the ecological environment ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of traditional fish-scale pits for land preparation such as low utilization rate of water resources, complicated watering, time-consuming and labor-intensive, combined with the characteristics of earth and rocky mountainous areas in North China, this invention invents a slope-type fish-scale pit for land preparation technology

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