CN1316870C

CN1316870C - Secondary root-changing method for senile old pine

Info

Publication number: CN1316870C
Application number: CNB2004100813060A
Authority: CN
Inventors: 梁德富
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2004-11-23
Filing date: 2004-11-23
Publication date: 2007-05-23
Anticipated expiration: 2024-11-23
Also published as: CN1608428A

Abstract

Old pines can bring attraction to gardens and view spots, so the old pines are precious. However, the nutrient absorption capability of the old pines is increasingly weakened due to the ageing of the root systems of the old pines, so tree crowns are gradually withered, and insect pest resistance capability is weakened. Once the old pines die, immeasurable loss is caused. Conventional rescue methods not only have large investment, but also can not fundamentally solve problems. A secondary root change technique for old pines, which is provided by the present invention, enables the old pines to safely and completely change roots, so the old pines radiate the vigor of youth again, and reproduce leafy and branchy appearance. The present invention also has the characteristics of convenient operation and little investment.

Description

Secondary root-changing method for senile old pine

One, technical field

The present invention relates to pine tree cultivation technology, particularly a kind of Age-old pine trees at aging carry out secondary root-changing to recover the method for its youthful vigor.

Two, background technology

Age-old pine trees add look for gardens, sight spot for a long time with its vigorous tall and straight majestic appearance, so the gardens technology personnel at its place, place extraordinarily cherish it invariably.Yet these Age-old pine trees have arrived certain age bracket, tangible old and feeble trend unavoidably can occur, at this problem, known treating method be loosen the soil, fertilising, deinsectization.These ways can be received certain effect really, but still can not tackle the problem at its root.Because after the century-old vicissitudes of Age-old pine trees experience, its root is aging day by day, the ability that these aging root systems not only absorb nutrient weakens, and the more important thing is that new on its basis root bears difficulty.As the saying goes: " leg-aging before aging, the old old root earlier of tree ", therefore, if do not allow Age-old pine trees rebuild powerful new root system, its aging trend will be difficult to reverse.

Three, summary of the invention

The objective of the invention is provides a kind of secondary root-changing technology at senile old pine to society, makes old and feeble Age-old pine trees rebuild new root system, thereby recovers its youthful vigor.

The object of the present invention is achieved like this: in the vegetative period of pine tree, in the Age-old pine trees trunk in the altitude range of ground 30～50cm, peel off the bark of trunk girth 2/3, the width of peeling is got 20～25cm, thoroughly strike off the cambium on xylem surface with sharp weapon, and the top layer tertia of peeling mouth upper edge 1m altitude range removed, the eruption of new root after being beneficial to, be the both sides that the plank of 3m * 1.5m is erected at trunk with two block lengths then, the 1.5m end of plank is close to trunk, the angle of two boards is 180 °, make that peeling and unpeeled two parts occupy center, plank both sides respectively on the trunk, to expose stripping of trunk cortex and the boundary line of not shelling fully, build semicircle wall together with fragment of brick again, the two ends of wall join with the outer end of two plates respectively, the height of wall is identical with the width of plate, loosened the soil in the regional ground of plate and wall formation, and fill up earth, earth is mixed by yellow clay and black loam, both weight ratios are: clay: loam=3: 1, be sprinkled into grass seeds at the soil table at last, to keep soil table humidity, along with the healing gradually of bark wound, the trunk bark stripping will be to a side shifting of peeling with the boundary line of not stripping, need clear up once this boundary line every half a year, spread plank after making not the stripping part maintain 1/3, two year of trunk girth, the bark of former remaining 1/3 girth on the trunk is peeled off, scrape off cambium, remove the top layer tertia in the stripping mouthful upper edge 1m, loosened the soil in ground, more original arc brick wall is extended into the circle of sealing after, fill up the soil identical again, and sprinkle grass seeds at native face with former proportioning.

Adopt technique scheme, can receive following remarkable result:

1, since pine tree behind the trunk band girdle, only 3-4 month time-to-live, Age-old pine trees trunk new root growth speed behind band girdle is slower than general deciduous species simultaneously, so can not adopt root changing method of band girdle formula, yet adopt secondary root-changing technology of the present invention, both the death risk that can avoid Age-old pine trees to cause because of the trunk band girdle was fully cut near a stripping mouthful new root sprouting for trunk bark again and was left time enough, make Age-old pine trees can ride out the complete root changing phase, finally set up the brand-new root system of a cover to Age-old pine trees.

2, after implementing to change root for the second time, old root system is progressively exhausted dead owing to can not get the nutrition of tree crown manufacturing, yet because the nutrient absorbing capacity of new root system and growth rate are all far above former old root system, so Age-old pine trees can promptly radiate the vigour of youth after changing for the second time a year of root, reappear flourishing looks.

3, the present invention compares with the method for at present known other rescue Age-old pine trees, and not only effect is remarkable, and operation easier is very low, and investment is few.

Claims

1, a kind of secondary root-changing method for senile old pine, it is characterized in that: in the vegetative period of pine tree, in the Age-old pine trees trunk in the altitude range of ground 30～50cm, peel off the bark of trunk girth 2/3, the width of peeling is got 20cm, thoroughly strike off the cambium on xylem surface with sharp weapon, and the top layer tertia of peeling mouth upper edge 1m altitude range removed, be erected at the both sides of trunk then with two planks that are of a size of 3m * 1.5m, the 1.5m end of plank is close to trunk, the angle of two boards is 180 °, make that peeling and unpeeled two parts occupy center, plank both sides respectively on the trunk, build semicircle wall together with fragment of brick again, the two ends of wall join with the outer end of two plates respectively, the height of wall is identical with the width of plate, loosened the soil in the regional ground of plate and wall formation, and fill up earth, earth is mixed by yellow clay and black loam, both volume ratios are: clay: loam=3: 1, be sprinkled into grass seeds at the soil table at last, every once stripping and the boundary line of not shelling of cleaning half a year, remove plank after making not the stripping part maintain 1/3, two year of trunk girth, the bark of former remaining 1/3 girth on the trunk is peeled off, scrape off cambium, remove the top layer tertia in the stripping mouthful upper edge 1m, loosened the soil in ground, more original arc brick wall is extended into the circle of sealing after, fill up the soil identical again, and sprinkle grass seeds at native face with former proportioning.