Pinus koraiensis direct seeding afforestation method

Abstract

The invention provides a pinus koraiensis direct seeding afforestation method, and belongs to the technical field of forestry. The pinus koraiensis direct seeding afforestation method comprises the steps that a secondary forest or over-cut forest stand with canopy density of 0.7-0.9 is selected, the lower portion of a closed canopy formed by broad-leaved tree crowns in the forest stand is selected as a direct seeding point, after forest is cleared, a land preparation operation link is omitted, small holes are directly formed in the direct seeding point of a forest land for seeding pinus koraiensis seeds, and a special protective cover is used for protection. According to the pinus koraiensis direct seeding afforestation method, through the forest stand selection and the direct sowing point selection, pinus koraiensis seedlings subjected to direct sowing afforestation are sheltered by the broad-leaved tree crowns, the pinus koraiensis seedlings are prevented from being sealed by dense shrub and grass by inhibiting over-development of ground weeds, shrubs and vines under the forest, a young forest tending operation link is omitted, and meanwhile the preservation rate after five years of the afforestation is increased. The pinus koraiensis direct seeding afforestation method is simple to operate and easy to popularize, and compared with the prior art, the preserving rate after 10 years of the afforestation is increased by 287.5%, and the afforestation cost is reduced by 70%.

Description

technical field [0001] The application relates to the technical field of forestry, in particular, to a method for direct-seeding afforestation of Korean pine. Background technique [0002] Korean pine is an evergreen tree of the genus Pinaceae, with a tree height of up to 30 meters and a diameter at breast height of 1 meter; it is distributed in the northeast and eastern mountainous areas from Changbai Mountain, Zhangguangcai Mountain, Wanda Mountain to Xiaoxing'an Mountains. Constructive species are not only precious timber tree species, but also the leading factor in building forest ecosystems to ensure ecological security. And the reforestation under the canopy of Korean pine is the main way to carry out "planting needles to protect broadness" and restore the severely damaged forest ecosystem in Northeast China. [0003] Live-streaming afforestation is one of the methods of close-to-nature management and reforestation under the canopy of Korean pine trees. The existing t...

AI Technical Summary

Problems solved by technology

[0012] Judging from the operating procedures of the existing live-cast afforestation technology of Korean pine, its main operation steps still follow the main technical links of planting seedlings, including the selection of re-cultivation stands, site preparation, sowing and young forest tending, which does not reflect the low consumption, Features of efficient close-to-nature cultivation

At the same time, some operating links in the existing live broadcast afforestation technology are more difficult to realize in actual production, and the operability is not strong

First, in the operation link of rodent situation investigation and prevention and control, it is cumbersome and difficult to carry out the investigation of the daily capture rate of rodents for 7 consecutive days. However, at the same time, it is impossible to eliminate the migration hazards of rodents in adjacent areas, which makes it difficult to guarantee the effect of rodent pest control, and the application conditions of direct seeding afforestation are limited; third, using picks for direct seeding afforestation operations, the requirements for sowing depth and seed spacing distance It is difficult to meet the requirements; Fourth, the management of seedlings after direct seeding requires eradicating the weeds on the hole surface that affect the growth of seedlings. The actual operation efficiency is extremely low, and it cannot be applied in a large area in production.

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