Method using stumping to regenerate and rejuvenate degenerated Elaeagnus angustifolia forest

Abstract

The invention belongs to the technical field of stumping rejuvenation of desert plants and particularly relates to a method using stumping to regenerate and rejuvenate a degenerated Elaeagnus angustifolia forest. The method includes the steps of firstly, selecting degenerated Elaeagnus angustifolia farmland shelterbelts, and randomly continuously selecting 20 Elaeagnus angustifolia samples in each shelterbelt to serve as the stumping objects; secondly, performing 3 / 4 stumping on the Elaeagnus angustifolia samples in the dormancy period of the Elaeagnus angustifolia samples; thirdly, immediately covering stubbles with soil after the stumping to prevent water loss; fourthly, performing tending management after the stumping, to be more specific, timely cleaning branches after the stumping, and performing conventional closing management on the stumping area to prevent man-made sabotage and livestock gnawing and trampling.

Description

technical field [0001] The invention belongs to the technical field of stubble rejuvenation of desert plants, and in particular relates to a method for rejuvenation and rejuvenation of degraded sand jujube forests. Background technique [0002] Elaeagnus angustifolia (Elaeagnus angustifolia), also known as Qilixiang, belongs to the genus Elaeagnus angustifolia, a deciduous tree. Natural sandy date forests are concentrated in the Tarim River and Manas River in Xinjiang, the Shule River in Gansu, the banks of the Ejina River in Inner Mongolia, and desert and semi-desert areas where the precipitation is less than 150 mm; the artificial sandy date forests are widely distributed in Xinjiang and Gansu , Qinghai, Ningxia, Shaanxi and Inner Mongolia. [0003] Elaeoptera has the characteristics of drought resistance, wind and sand resistance, salt and alkali resistance, cold resistance, and barren resistance. It has strong adaptability, rapid growth, dense branches, well-developed r...

AI Technical Summary

Problems solved by technology

In the 1960s, the planting of Elaeagnus sativa was widely popularized and applied in the northwest of my country. However, since the middle and late 1970s, on the one hand, with the decrease of water resources and the decline of groundwater level, these artificially constructed Elaeagnus sativa forests have experienced a large number of declines and deaths. Due to the activation of sand dunes, the increasingly serious wind erosion, and the acceleration of land desertification, it seriously threatens the production and life of people in this area and the survival and development of oasis; The natural regeneration of jujube itself is greatly restricted, and the naturally regenerated seedlings generally have poor growth and development, severe pests and diseases, sparse distribution, slow growth, and decline in productivity, forming a large area of ​​degraded sand jujube forests.

However, the use of "flat stubble" treatment to improve the regeneration and rejuvenation of degraded S. jujube forest is less researched

[0006] In recent years, researches on the causes of the degradation of artificial Eleuthero jujube forests generally believe that water is the main factor causing the degradation, and the serious shortage of water resources has greatly restricted the growth and development of Elaeoptera eraefolia

However, when the traditional stubble method is used, the plants are directly cut off from the root neck. This method can regenerate more new shoots in a relatively short period of time, but the recovery speed of the stand is slow. The branches are sparsely distributed, and the ability to resist wind erosion and sand burial is reduced.

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