阅读说明：本技术 在海滨地区种植许树的方法 (Method for planting xu tree in seaside area ) 是由 伍娥 胡长云 伍洲洲 昝欣 昝启杰 王佐霖 赵晴 于 2020-05-27 设计创作，主要内容包括：本发明属于农林技术领域,尤其涉及一种在海滨地区种植许树的方法,包括步骤：获取许树茎段；以当地海滨最大潮位垂直向上1.5米～2米处为种植上限线,以黄海高程垂直向上0.9米～1米处为种植下限线,将所述种植下限线和所述种植上限线之间的区域设定为种植区域；在种植穴铺设调配土,将所述许树茎段种植在所述种植区域,养护处理。本发明结合许树的生长特性以及对当地海水涨潮情况的调研,确定的种植区域最有利于许树的存活生长。同时通过在种植穴中铺设调配土,提高许树茎段的成活率和生长速率,能够更好的固沙护岸。并且种植方法简单易行、成本低、易养护、利于环保,在固沙护岸的同时能增加海岸沙滩绿色生态景观。(The invention belongs to the technical field of agriculture and forestry, and particularly relates to a method for planting a permitted tree in a seaside region, which comprises the following steps: obtaining stem sections of the xu tree; taking a place 1.5-2 meters above the maximum tide level of the local seaside vertically as an upper planting limit line, taking a place 0.9-1 meter above the elevation of the yellow sea vertically as a lower planting limit line, and setting an area between the lower planting limit line and the upper planting limit line as a planting area; and paving mixed soil in the planting holes, planting the stem sections of the xu tree in the planting area, and curing. The method combines the growth characteristics of the permissive trees and the investigation on the flood tide condition of the local seawater, and the determined planting area is most favorable for the survival and growth of the permissive trees. Meanwhile, the blended soil is paved in the planting holes, so that the survival rate and the growth rate of stem sections of the tree are improved, and sand fixation and bank protection can be better realized. The planting method is simple and easy to implement, low in cost, easy to maintain and beneficial to environmental protection, and can increase the green ecological landscape of the coast and the beach while fixing and protecting the sand and the bank.)

1. A method for planting a permissive tree in a seaside region is characterized by comprising the following steps:

obtaining stem sections of the xu tree;

taking a place 1.5-2 meters above the maximum tide level of the local seaside vertically as an upper planting limit line, taking a place 0.9-1 meter above the elevation of the yellow sea vertically as a lower planting limit line, and setting an area between the lower planting limit line and the upper planting limit line as a planting area;

and paving mixed soil in the planting holes, planting the stem sections of the xu tree in the planting area, and curing.

2. The method for planting xu tree in seashore area according to claim 1, wherein the step of obtaining the stem section of xu tree comprises:

selecting stem strips of the xu tree with the age of 8 months-1 year and the diameter of 50 mm-150 mm;

cutting the stems of the trees into stem sections with the length of 40-70 cm and comprising at least one creeping stem and at least one upright stem;

removing leaves of the upright stem and other branches except 1-2 branches in the stem section;

and soaking and disinfecting the stem segments for 4-6 hours, and then soaking in a rooting powder solution for 4-6 hours to obtain the stem segments of the scholartree.

3. The method for planting xu tree in seashore area according to claim 2, wherein the cut surface of the stem section of xu tree is flat; and/or the presence of a gas in the gas,

the stem nodes of the erect stems contain adventitious roots derived from underground growth; and/or the presence of a gas in the gas,

the soaking disinfection treatment adopts a potassium permanganate solution with the mass concentration of 0.2-0.4%; and/or the presence of a gas in the gas,

the rooting powder solution is prepared from an ABT1 rooting powder solution with the concentration of 380 mg/kg to 400 mg/kg.

4. The method for planting xu tree in seashore area according to any of claims 1 to 3, wherein the step of planting the stem section of xu tree in the planting area comprises:

planting holes are arranged in the planting area according to the distance between adjacent plants being 0.4-0.6 m;

paving a layer of blended soil with the thickness of 2-3 cm at the bottom and around the planting hole;

and placing the stem section of the xu tree in a planting hole paved with mixed soil, and backfilling sandy soil.

5. The method for planting xu tree in seashore area according to claim 4, wherein the planting hole has a length of 0.7-0.5 m, a width of 0.7-0.5 m and a height of 0.7-0.5 m; and/or the presence of a gas in the gas,

the formulated soil comprises peat and red soil and/or sea mud.

6. The method for planting the permissive tree in the seashore area according to claim 5, wherein the step of backfilling the sandy soil comprises: placing the stem section of the xu tree with an upright stem facing upwards and an adventitious root facing downwards in the stem node into a planting hole, and then burying the stem section by adopting sandy soil to cover the stem node of the stem section with sandy soil with the thickness of 6-8 cm; and/or the presence of a gas in the gas,

the sandy soil comprises: red soil and sea sand.

7. The method for planting permissive trees at seashore according to claim 6, wherein the ratio of the total mass of the red soil and the sea mud to the mass of the peat in the formulated soil is 2: (6-4); and/or the presence of a gas in the gas,

in the sandy soil, the mass ratio of the red soil to the sea sand is (4-5): 1.

8. The method for planting permissive trees in the seashore area according to claim 7, wherein the maintaining step comprises:

within 30 days from the planting day, local seawater or seawater with the salinity of 5-11 per mill is used for pouring once every 5 days;

and spraying auxin to the stem leaves every 15 days within 15-4 months from the planting day.

9. The method for planting xu tree in seashore area according to claim 8, wherein the auxin concentration is 120mg/L to 160 mg/L; and/or the presence of a gas in the gas,

applying nitrogen fertilizer according to 300-500 g/plant every 15 days within 15-4 months from the planting day.

10. The method for planting the permissive tree in the seashore area according to any one of claims 1 to 3, 5 to 7 or 9, wherein the planting area has an upper planting limit line at 2 meters above the maximum tidal level of the local seashore and a lower planting limit line at 0.97 meters above the elevation of the yellow sea.

Technical Field

The invention belongs to the technical field of agriculture and forestry, and particularly relates to a method for planting a permitted tree in a seaside region.

Background

In coastal areas of China, coastal seawater tidal motions are frequent and severe, and sand grains in seawater are retained by sea tides or storm tides to form an unstable structure. Particularly, on the two sides of a river connected with the sea, because of the rising tide and falling tide of seawater, the manual excavation and culture of a fish pond and other reasons, a bank with the surface mainly made of sand is easier to form on the two sides of the river and the side slope of the dam of the fish pond. Because the sea sand lacks viscosity and adhesive force, the bank is unstable, the loss of the bank sand and the collapse of the dam are easy to happen, and the coastal beach is degraded or even partially disappears.

In recent years, the coastal beaches and the beaches in China are damaged quickly, and the recovery of vegetation of the beaches and the beaches is very urgent. By recovering the vegetation, on one hand, the method can fix sand, protect sand and protect banks and play the ecological role of the coast in resisting erosion of storm surge; on the other hand, the landscape can be changed, and the ecological function of the green land can be increased. However, because the salt content of the soil in the seaside region is high, and sea breeze carries a large amount of sea salt, and is influenced by factors such as sea tides, the vegetation in the seaside region is difficult to survive. Moreover, the vegetation reconstruction on the seaside sand lands is equivalent to the restoration of semi-natural vegetation on a severely degraded ecological system so as to achieve the effects of fixing sand and improving the micro-ecological environment, and strong technical support is needed.

At present, although there are many measures for improving seaside saline soil by chemical, physical, biological and other methods; however, there is still no effective method for increasing the survival rate of vegetation in the areas such as the coastal sandy beach and the beaches, recovering the vegetation in the coastal sandy beach and the beaches, and forming a stable community structure.

Disclosure of Invention

The invention aims to provide a method for planting trees in a seaside area, and aims to solve the technical problems that the existing seaside area is low in vegetation survival rate and difficult in sand fixation and bank protection.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:

a method for planting a permitted tree in a seaside region comprises the following steps:

obtaining stem sections of the xu tree;

taking a place 1.5-2 meters above the maximum tide level of the local seaside vertically as an upper planting limit line, taking a place 0.9-1 meter above the elevation of the yellow sea vertically as a lower planting limit line, and setting an area between the lower planting limit line and the upper planting limit line as a planting area;

and paving mixed soil in the planting holes, planting the stem sections of the xu tree in the planting area, and curing.

Preferably, the step of obtaining the stem segment of scholar tree includes:

selecting stem strips of the xu tree with the age of 8 months-1 year and the diameter of 50 mm-150 mm;

cutting the stems of the trees into stem sections with the length of 40-70 cm and comprising at least one creeping stem and at least one upright stem;

removing leaves of the upright stem and other branches except 1-2 branches in the stem section;

and soaking and disinfecting the stem segments for 4-6 hours, and then soaking in a rooting powder solution for 4-6 hours to obtain the stem segments of the scholartree.

Preferably, the section of the stem section of the scholar tree is a flat mouth.

Preferably, the stem nodes of the erect stems contain adventitious roots derived from underground growth.

Preferably, the soaking disinfection treatment adopts a potassium permanganate solution with the mass concentration of 0.2-0.4%.

Preferably, the rooting powder solution is an ABT1 rooting powder solution with a concentration of 380 mg/kg to 400 mg/kg.

Preferably, the step of planting the stem section of the scholar tree in the planting area comprises:

planting holes are arranged in the planting area according to the distance between adjacent plants being 0.4-0.6 m;

paving a layer of blended soil with the thickness of 2-3 cm at the bottom and around the planting hole;

and placing the stem section of the xu tree in a planting hole paved with mixed soil, and backfilling sandy soil.

Preferably, the planting hole is 0.7-0.5 meter long, 0.7-0.5 meter wide and 0.7-0.5 meter high.

Preferably, the formulated soil comprises peat and red soil and/or sea mud.

Preferably, the step of backfilling the sandy soil comprises: and (3) placing the stem section of the xu tree with the upright stem upward and the adventitious root downward in the stem node into a planting hole, and then burying the stem section by adopting sandy soil to cover the stem node of the stem section with sandy soil with the thickness of 6-8 cm.

Preferably, the sandy soil comprises: red soil and sea sand.

Preferably, in the formulated soil, the ratio of the total mass of the red soil and the sea mud to the mass of the peat is 2: (6-4).

Preferably, in the sandy soil, the mass ratio of the red soil to the sea sand is (4-5): 1.

Preferably, the step of curing treatment comprises:

within 30 days from the planting day, local seawater or seawater with the salinity of 5-11 per mill is used for pouring once every 5 days;

within 60 days from the planting day, checking whether sandy soil in the planting holes is washed away by seawater every week, and if the sandy soil is washed away, supplementing in time to prevent the roots of the seedlings from being exposed;

and spraying auxin to the stem leaves every 15 days within 15-4 months from the planting day.

Preferably, the pouring is delayed once when the water comes in the flood tide.

Preferably, the concentration of the auxin is 120 mg/L-160 mg/L.

Preferably, nitrogen fertilizer is applied according to 300 g/plant to 500 g/plant every 15 days within 15 days to 4 months from the planting day.

Preferably, the planting area takes a position 2 meters vertically above the maximum tidal level of the local seaside as an upper planting limit line and takes a position 0.97 meters vertically above the elevation of the yellow sea as a lower planting limit line.

The method for planting the permissive tree in the seaside area provided by the invention takes the position 1.5-2 meters vertically upward from the maximum tide level of the local seaside as a planting upper limit line and takes the position 0.9-1 meter vertically upward from the elevation of the yellow sea as a planting lower limit line according to the local tide situation, and the stem section of the pretreated permissive tree is planted in the planting area under the condition that the planting holes are paved with the formulated soil. Because the growth of the tree has certain requirements on the salt content in the soil environment, the soil environment which is occasionally submerged by seawater is beneficial to the growth of the tree, and the maximum length of the root system of the tree growing underground can reach 2 meters. The position 1.5-2 meters above the maximum tide level of the local seaside is taken as a planting upper limit line, the upper limit line just enables the root system of the tree to be contacted with the seawater occasionally, and the salinity in the root system soil is favorable for the growth of the tree. If the salinity of the soil is higher than the upper limit line, the salinity of the soil for allowing the trees to grow is too low, and the survival and the growth of the trees are not facilitated. In addition, a position 0.9-1 meter above the elevation of the yellow sea is taken as a lower limit line of a planting area, the lower limit line is the tolerance limit of the time and frequency for submerging the permissive trees by the seawater, if the position of the lower limit line is lower than the position of the lower limit line, the seawater submerges the permissive trees for too much time and too long time, the salinity in the soil exceeds the adaptation range for the growth of the permissive trees, and the permissive trees are not beneficial to survival and growth of the permissive trees. The method combines the growth characteristics of the scholar trees and the investigation on the local seawater flood tide situation, the determined planting area is most beneficial to the survival and growth of the scholar trees, meanwhile, the allocated soil is paved in the planting holes, the survival rate and the growth rate of stem sections of the scholar trees are improved, the survival rate can reach 95% after 60 days, the vegetation coverage can reach 80%, and the sand stabilization and bank protection can be better realized. Moreover, the planting method provided by the embodiment of the invention is simple and feasible, low in cost, easy to maintain and beneficial to environmental protection, and can increase the green ecological landscape of the coast and the beach while fixing sand and protecting the bank.

Drawings

FIG. 1 is a landscape view after planting trees in the seaside area in accordance with example 4 of the present invention.

FIG. 2 is a diagram of the rooting of the stem segments of the xu tree in example 1 of the present invention.

FIG. 3 is a diagram of the case of tree propagation along the ground to the periphery in embodiment 3 of the present invention.

Detailed Description

In order to make the purpose, technical solution and technical effect of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention is clearly and completely described, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive step in connection with the embodiments of the present invention shall fall within the scope of protection of the present invention.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The weight of the related components mentioned in the description of the embodiments of the present invention may not only refer to the specific content of each component, but also represent the proportional relationship of the weight among the components, and therefore, the content of the related components is scaled up or down within the scope disclosed in the description of the embodiments of the present invention as long as it is in accordance with the description of the embodiments of the present invention. Specifically, the weight in the description of the embodiment of the present invention may be a unit of mass known in the chemical industry field such as μ g, mg, g, kg, etc.

The embodiment of the invention provides a method for planting a permitted tree in a seaside region, which is characterized by comprising the following steps:

s10, obtaining stem sections of the xu tree;

s20, determining a planting area, taking a position 1.5-2.5 meters above the maximum tide level of the local seaside vertically as a planting upper limit line, taking a position 0.9-1 meter above the yellow sea elevation vertically as a planting lower limit line, and setting an area between the planting lower limit line and the planting upper limit line as the planting area;

s30, planting the stem sections of the xu tree in a planting area under the condition that the mixed soil is laid in the planting holes, and maintaining.

According to the method for planting the permissive tree in the seaside area, provided by the embodiment of the invention, the position 1.5-2 meters above the maximum tide level of the local seaside is taken as the upper planting limit line, the position 0.9-1 meter above the elevation of the yellow sea is taken as the lower planting limit line, and the stem section of the pretreated permissive tree is planted in the planting area under the condition that the planting holes are paved with the allocated soil. Because the growth of the tree has certain requirements on the salt content in the soil environment, the soil environment which is occasionally submerged by seawater is beneficial to the growth of the tree, and the maximum length of the root system of the tree growing underground can reach 2 meters. The position 1.5-2 meters above the maximum tide level of the local seaside is taken as a planting upper limit line, the upper limit line just enables the root system of the tree to be contacted with the seawater occasionally, and the salinity in the root system soil is favorable for the growth of the tree. If the salinity of the soil is higher than the upper limit line, the salinity of the soil for allowing the trees to grow is too low, and the survival and the growth of the trees are not facilitated. In addition, a position 0.9-1 meter above the elevation of the yellow sea is taken as a lower limit line of a planting area, the lower limit line is the tolerance limit of the time and frequency for submerging the permissive trees by the seawater, if the position of the lower limit line is lower than the position of the lower limit line, the seawater submerges the permissive trees for too much time and too long time, the salinity in the soil exceeds the adaptation range for the growth of the permissive trees, and the permissive trees are not beneficial to survival and growth of the permissive trees. The embodiment of the invention combines the growth specificity of the xu tree and the investigation of the local seawater flood tide situation, the determined planting area is most beneficial to the survival growth of the xu tree, meanwhile, the allocated soil is paved in the planting holes, the survival rate and the growth rate of the stem section of the xu tree are improved, the survival rate can reach 95% after 60 days, the vegetation coverage can reach 80%, and the sand fixation and bank protection can be better realized. Moreover, the planting method provided by the embodiment of the invention is simple and feasible, low in cost, easy to maintain and beneficial to environmental protection, and can increase the green ecological landscape of the coast and the beach while fixing sand and protecting the bank.

The embodiment of the invention takes the schlieren as a planting object, the schlieren is climbing or creeping rattan shrubs, the sand bank can be covered by climbing, the overground part is in a climbing upright shape, a three-dimensional landscape can be formed, and a plurality of fibrous adventitious roots (fibrous roots) can grow at the stem nodes of the branches when the branches contact the sand, and the fibrous adventitious roots can help the schlieren to grow in the sand quickly. The embodiment of the invention utilizes the stem node of the branch where the scholar tree creeps on the ground to grow a plurality of adventitious roots for rapid vegetative propagation, and directly uses the stem node branch with the adventitious roots as a propagule to breed into an independent individual. The climbing branches grow upwards to form a three-dimensional landscape which is used as a vegetation recovery landscape.

In some embodiments, the planting area may be determined by querying the national ocean administration tide table to find the nearest ocean monitoring station tide table to the local site.

Specifically, in step S10, the scholar tree stem segment is obtained. In the embodiment of the invention, the stem is pretreated into the stem section of the scholar tree after the scholar tree stem is obtained, so that the scholar tree stem section is suitable for subsequent seedling cultivation.

In some embodiments, the step of obtaining the scholar tree stem segment comprises:

s00, selecting the stem of the xu tree with the age of 8 months-1 year and the diameter of 50 mm-150 mm.

S11, cutting the stem of the scholar tree into stem segments which are 40-70 cm in length and comprise at least one creeping stem and at least one upright stem;

s12, removing leaves of a vertical stem and other branches except 1-2 branches in the stem section;

s13, after the stem sections are soaked and disinfected for 4 to 6 hours, soaking the stem sections in the rooting powder solution for 4 to 6 hours to obtain the stem sections of the schwann trees.

Specifically, in step S11, stem of scholar tree with age of 8 months-1 year and diameter of 50 mm-150 mm is selected. The stem of the xu tree with the age of 8 months to 1 year and the diameter of 50 mm to 150 mm is selected in the embodiment of the invention, the stem has the best growth and reproduction advantages, and if the stem is too tender or too old, the reproductive capacity is poor, and the survival and reproduction of new individuals are not facilitated.

Specifically, in step S11, the tree stem is cut into stem segments with a length of 40-70 cm and comprising at least one creeping stem and at least one upright stem, the length of the stem segments being beneficial for subsequent planting, wherein the contained at least one creeping stem and upright stem provide guarantee for the reproductive growth of the stem segments, especially the stem nodes of the upright stem contain abundant adventitious roots from underground growth, the adventitious roots being one of the key factors for the survival growth of the stem segments, and the adventitious roots draw water and nutrients in the soil for the growth of the stem segments. In some embodiments, the length of the stem node may be 40 centimeters, 50 centimeters, 60 centimeters, or 70 centimeters.

Specifically, in step S12, the leaves of the stem and the other excess branches other than 1-2 branches on the stem are removed, and the excess branches and leaves are removed, so as to reduce evaporation loss of vegetation water, and improve the survival rate of the stem. In some embodiments, the cut surface is flat when the leaves and the redundant branches are removed, so that the moisture loss is further reduced.

Specifically, in step S13, the stem is subjected to a soaking sterilization treatment for 4 to 6 hours, and the stem is subjected to a sufficient sterilization treatment to prevent the cross section of the stem from being damaged by bacterial infection; and then soaking in the rooting powder solution for 4-6 hours, so as to improve the rooting rate of the stem segments in the subsequent cultivation process and obtain the stem segments of the xu tree. In some embodiments, the soaking disinfection treatment adopts a potassium permanganate solution with the mass concentration of 0.2% -0.4%, the potassium permanganate solution with the concentration can carry out sufficient disinfection and sterilization on the stem segments, and if the concentration is too high, the oxidizing property is too strong, the stem segments are damaged, and the survival and the growth of the stem segments are not facilitated. In some embodiments, the rooting powder solution is an ABT1 rooting powder solution with a concentration of 380 mg/kg to 400 kg/kg, and in the embodiments of the present invention, the stem segments are soaked in a higher concentration ABT1 rooting powder solution, so that the growth of the root systems of the stem segments of the schoolwork is better promoted, and if the concentration of the rooting powder solution is too low, the promotion of the roots of the schoolwork is not obvious.

Specifically, in step S20, the planting area is determined, and the upper limit line is set at a position 1.5 meters to 2 meters above the maximum tidal level of the local seaside, and the lower limit line is set at a position 0.9 meters to 1 meter above the yellow sea level. According to the embodiment of the invention, through field multiple investigation and sampling determination, the altitude height of the tree with the maximum height of 2 meters is basically the most suitable for growth of the tree. The growing of the adult trees is facilitated because the adult trees are occasionally submerged by the big tide of seawater, the root systems of the trees can maximally extend downwards into the soil to reach 2 meters, the 2 meters are just the seawater submerging line position when the tide rises, and the soil water has salinity and is just suitable for the growth of the adult trees. The lower limit of 1 m is the lowest tide level at which the trees can grow to the maximum extent, and the lower limit of the tide level exceeds the limit of the survival capacity, namely the limit of the time and frequency of the seawater submergence endured. Therefore, the optimum growth area for the survival and growth of the xu tree is determined by combining the growth characteristics of the xu tree and the investigation and research on the local seawater tidal conditions, the survival rate is improved, the coverage rate of local vegetation is improved, and the effects of wind prevention, sand fixation and bank protection are enhanced. In some embodiments, the planting area with the upper limit line 2 meters above the maximum tide level of the local seaside and the lower limit line 0.97 meters above the elevation of the yellow sea is more favorable for the survival and growth of trees.

Specifically, in step S30, under the condition that the formulated soil is laid in the planting holes, the stem segments of the scholar tree are planted in the planting area and cured. The stem section of the xu tree is planted in the planting area and is maintained, wherein the planting holes are paved with the mixed soil, so that the survival rate and the growth rate of the xu tree are improved.

In some embodiments, the step of planting the stem section of the scholar tree in the planting area comprises:

s31, arranging planting holes in a planting area according to the distance between adjacent plants being 0.4-0.6 m;

s32, paving a layer of blended soil with the thickness of 2-3 cm at the bottom and around the planting hole;

s33, placing the stem sections of the xu tree in planting holes paved with mixed soil, and backfilling sandy soil.

The embodiment of the invention plants stem segments of the xu tree in a planting area with the distance between adjacent plants of 0.4-0.6 m, lays mixed soil with the distance of 2-3 cm in planting holes to ensure the survival and growth of the xu tree, then backfills sandy soil, lightly compacts to complete the planting of the xu tree.

Specifically, in step S31, planting holes are formed in the planting area according to the distance between adjacent plants of 0.4-0.6 m, the planting distance is favorable for the growth of the trees, and if the plants are too dense, the plants are squeezed by each other due to growth, and compete for sunlight, rain and dew, so that the plants grow badly, branches and heads die, and are exhausted, and when the plants are serious, the entire plant dies, and meanwhile, the seedlings are wasted. If the planting is too sparse, the vegetation coverage rate is low, and the sand-fixing and bank-protecting effects of the vegetation on the whole seaside are not facilitated. In some embodiments, the planting hole has a length of 0.7-0.5 m, a width of 0.7-0.5 m and a height of 0.7-0.5 m, and the planting hole has a size which ensures the planting of the stem section of the schwann tree.

Specifically, in step S32, a layer of fabricated soil with a thickness of 2 cm to 3 cm is laid at the bottom and around the planting hole, and the fabricated soil adopted in the embodiment of the present invention is more favorable for the survival and growth of the permitted tree compared to the seaside original sandy soil, and if the laid thickness is too thin, the growth and survival promotion effect on the permitted tree is not obvious.

In some embodiments, the formulated soil comprises peat and red soil and/or sea mud. As the roots of the scholar trees are developed, the red loam or the sea mud is added into the blended soil, so that the fixation of the roots in the red loam and the sea mud is facilitated, and the red loam or the sea mud has better fixation on the scholar trees compared with the red loam or the sea mud in the sand. In addition, the root system of the tree is favored to be ventilated, peat is added in the mixed soil to ensure the ventilation of the root system of the tree so as to increase the ventilation of the soil, the peat not only has the characteristics of light weight, water retention, fertilizer retention, contribution to microorganism activity and the like, but also can enhance the biological performance, has rich nutrition, is a culture medium, is a good soil regulator, contains high organic biomass, humic acid and nutrient components, can provide biomass nutrients for the growth of the tree, and is favorable for the growth and fixation of the root system of the tree. In some embodiments, the ratio of the total mass of red soil and sea mud to the mass of peat in the formulated soil is 2: (6-4), the mixed soil with the changed proportion is most beneficial to the growth and fixation of the root system of the tree, so that the survival rate and the growth rate are improved. If the proportion of the peat is too high, the fixing of the root system of the tree is not facilitated, and if the proportion of the peat is too low, the growth of the root system of the tree is not facilitated. In some embodiments, the ratio of the total mass of red soil and sea mud to the mass of peat is 2: 5.

Specifically, in step S33, the stem of the scholar tree is placed in the planting hole where the formulated soil is laid, and the sandy soil is backfilled. The embodiment of the invention places the stem section of the xu tree in the planting hole paved with the blended soil, and specifically, the stem section of the xu tree is placed with the upright stem upward and the adventitious root at the stem node downward in the planting hole; and then, burying the stem sections by adopting sandy soil, covering the stem sections of the stem sections with sandy soil of 6-8 cm, and lightly compacting to complete the planting of the stem sections.

In some embodiments, the sandy soil comprises: the red soil can be favorable for fixing the roots of the scholar trees, the sea sand can increase the air permeability of the soil, and the cooperation of the red soil and the sea sand is favorable for the growth of the roots of the scholar trees. In some embodiments, the mass ratio of the red soil to the sea sand in the sandy soil is (4-5): 1, the red soil and the sea sand in the ratio are most beneficial to survival and growth of the scholar trees, and if the content of the red soil is too high, the air permeability is poor, so that rooting and growth of the scholar trees are not facilitated; if the red soil content is too low, the stability of the root system of the tree is not facilitated. In some embodiments, when the mass ratio of the red soil to the sea sand is 4:1, the survival rate of the scholar tree reaches 88.8%, and the rooting number can reach 37.12 per plant.

In some embodiments, the step of curing comprises:

s34, within 30 days from the planting day, local seawater or seawater with the salinity of 5-11 per mill is used for pouring once every 5 days;

s35, checking whether sandy soil in the planting holes is washed away by seawater every week within 60 days from the planting day, and supplementing in time to prevent the roots of the seedlings from being exposed if the sandy soil is washed away;

s36, spraying auxin to stem leaves every 15 days within 15-4 months from the planting day, and applying nitrogen fertilizer to roots.

After the stem section of the xu tree is planted in the planting area, the tree is periodically irrigated, the soil coverage condition of the planting hole is checked, and the tree is maintained by spraying auxin, applying fertilizer and the like, so that the survival rate and the growth effect of the stem section of the xu tree are ensured.

Specifically, in step S34, the local seawater or the seawater with salinity of 5-11% is used to simulate the salinity of the local seawater within 30 days from the planting day, and the watering is performed once every 5 days, if the watering frequency is too high or too low, the survival and growth of the stem section of the tree are not facilitated. In some embodiments, the flooding is performed once after the flooding of the growing area by seawater flood tide.

Specifically, in step S35, within 60 days from the planting day, it is checked every week whether the sandy soil in the planting holes is washed away by seawater, and if so, the roots of the seedlings are timely supplemented to be prevented from being exposed.

Specifically, in the step S36, the auxin is sprayed to the stem leaves every 15 days within 15 days to 4 months from the planting day, instead of the foliar fertilizer, because most of the existing foliar fertilizer is a nitrogen fertilizer, and the application of an excessive amount of nitrogen-containing fertilizer can inhibit the growth of the scholar trees, the auxin is sprayed to promote the growth of the scholar trees in the embodiment of the present invention. In some embodiments, the concentration of the auxin is 120mg/L to 160mg/L, and the auxin has the optimal promotion effect on the survival and growth of the scholar trees.

In some embodiments, during the curing process, nitrogen fertilizer is applied at 300 g/plant to 500 g/plant every 15 days within 15 days to 4 months from the planting day, and the growth of the permissive trees is promoted by applying a small amount of nitrogen fertilizer.

In order to make the above implementation details and operations of the present invention clearly understood by those skilled in the art and to make the progress of the method for planting allowable trees in the seashore area obvious, the above technical solution is illustrated by a plurality of examples.