A kind of arid stony sun slope Chinese pine seedling raising and afforestation method

Abstract

The invention mainly relates to a method for Chinese pine seedling cultivation and afforestation in a dry stony sunny slope, and belongs to the technical field of forest seedling cultivation and afforestation. In the northern area of China, there is much dry and stony mountain land where the survival rate of afforestation is low and the forest establishment effect is poor. The cultivation and afforestation method comprises the steps that firstly, seedlings are cultivated in a bare-rooted manner in a field land; secondly, the seedlings are transplanted into containers to be cultivated, substrates in the containers are formed by clay and compounds of the clay or the clay and the compounds of agriculture and forestry organic wastes, and the clay in the substrates accounts for 70-80 percent in volume; thirdly, when the container seedlings are used for afforestation, a mode that the container seedlings are not detached from the containers is adopted for afforestation, the bottoms of the containers are removed, and wall cutting treatment is performed on the peripheries of the containers; fourthly, the container seedlings are transplanted into pits, after afforestation is performed, the seedlings can survival for a non-effective precipitation period of a half month to one month, and after the seedlings survival in summer under natural conditions, common intertillage cultivation is performed. According to the method, the survival rate and preserving rate of the Chinese pine seedlings are improved, the growing speed is obviously improved, and the forest establishment effect is better.

Description

technical field [0001] The invention belongs to the technical field of forest seedling cultivation and afforestation, and in particular relates to a method for arid rocky sunny slope Chinese pine seedling cultivation and afforestation. Background technique [0002] Pinus tabulaeformis belongs to the genus Pinaceae. It is an evergreen tree all year round. It is one of the most important tree species for afforestation in northern my country. Because of its strong root system, dense canopy, and strong soil and water storage capacity, it is also an important water conservation forest, soil and water conservation forest and landscape ornamental tree species. [0003] Seedling cultivation and afforestation are two key links in forestry production. At present, Chinese pine seedling cultivation includes field direct seedling cultivation and container cultivation. With the advancement of afforestation and greening projects, the site conditions for afforestation are getting worse and ...

AI Technical Summary

Problems solved by technology

[0003] Seedling cultivation and afforestation are two key links in forestry production. At present, Chinese pine seedling cultivation includes field direct seedling cultivation and container cultivation. With the advancement of afforestation and greening projects, the site conditions for afforestation are getting worse and worse, and afforestation is becoming more and more difficult Afforestation of bare-root seedlings in field direct seeding generally has low survival rate and repeated afforestation every year. Afforestation of container seedlings has the advantages of high survival rate and preservation rate, long afforestation season, short seedling slowing period, and fast growth of seedlings in the early stage. Pinus tabulaeformis The survival rate and preservation rate of container seedling afforestation are higher than those of bare-root seedling afforestation. Therefore, the commonly used method to improve the quality of afforestation is to use container seedling afforestation. Difficulties, especially the problem of poor spring afforestation on sunny slopes. The main manifestations are that the seedling raising and afforestation links are not matched, the seedlings have poor drought resistance, and it is difficult to survive a long drought period after planting out of the bag. seedlings, resulting in low survival rate and preservation rate of afforestation, small growth and slow forest formation

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