CN104429734A - Anti-freezing and heat preserving method for greening trees in northeast China - Google Patents

Abstract

The method for antifreezing and heat preservation of afforestation trees in Northeast China relates to the technical field of overwintering protection for afforestation trees, and is characterized in that it includes root neck embedding, soil covering, erecting wind barriers, whitewashing and white spraying, plastic film cold protection method, and chemical control method. The method of the invention is reasonable, convenient to implement and convenient to prevent and cure.

Description

Methods of antifreeze and heat preservation for afforesting trees in Northeast China

Technical field:

The invention relates to the technical field of overwintering protection of greening trees, in particular to a method for preventing freezing and heat preservation of greening trees in the Northeast region.

Background technique:

With its unique ecological balance function and environmental protection function, greening tree species determine its irreplaceable important "heart" status in the construction of a modern civilized society. The greening tree species, because of their magical variety and brilliant brilliance, play a green movement in creating a natural atmosphere and beautifying the environmental space. The production areas are distributed all over the country, such as Zhejiang, Jiangsu, Anhui, Henan, Shandong, etc. Green tree species have attracted more and more attention because of their special significance in the construction of human spiritual civilization and material civilization. Vigorous development vitality.

Freezing injury is the damage to crops caused by the freezing of crops at a low temperature below 0 °C. Frost damage to overwintering crops, fruit tree freeze damage and economic tree freeze damage often occur. Freezing damage is a phenomenon in which cells and tissues of trees are damaged by low temperature, and even die. Freezing damage is mainly divided into two categories: frost damage and overwintering damage. The main damage to green trees is frost damage. This will have a certain impact on environmental protection and soil protection, and will also bring certain losses to the economy, and waste a lot of time and manpower.

Invention content:

The technical problem to be solved by the present invention is to overcome the existing technical defects and provide a method for antifreeze and heat preservation of green trees in the Northeast region, which is reasonable in method, convenient in implementation and convenient in prevention and control.

Technical problem to be solved by the present invention adopts following technical scheme to realize:

The method for antifreeze and heat preservation of greening trees in Northeast China is characterized in that: it comprises the following methods,

Method 1. Cultivation of the root neck: After the winter water irrigation is completed, combined with the sealing of the weir, a soil mound with a diameter of 50-80 cm and a height of 30-50 cm is cultivated at the root neck of the tree, which can prevent low temperature frostbite of the root neck and tree roots, and can also reduce evaporation of soil moisture;

Method 2. Covering soil: In early spring, when the soil has not been thawed, the roots of the trees are difficult to absorb water. At this time, the air is dry, the temperature rises quickly, and the evaporation is large, which will easily cause the physiological drought of the plants and the shoots; In the soil, keep the seedlings and the soil of the seedbed at a certain temperature, free from the influence of rapid changes in temperature and other external adverse factors; the method of covering the soil to prevent cold is suitable for Chinese pine, sylvestris sylvestris, spruce, etc., and the tree species that are prone to mildew and rot should not be used This method: covering the soil to prevent cold should be carried out when the seedlings have stopped growing and the soil is frozen 3-5 days before the temperature is stable at -3-2°C;

The specific method of covering the soil is: use a plow to plow up the trail, cover the soil in one direction on the bed after crushing the soil, make the seedlings fall to one side, do not cover the soil from the top of the seedlings; cover the soil evenly, and bury it tightly to avoid freezing damage caused by soil ventilation , and on the windward side of the south side of the bed surface, the covering soil should be thickened; after covering the soil, it should be checked frequently, and the exposed seedlings should be covered in time; 1-2 weeks before the emergence of seedlings in the spring of the following year, when the temperature is stable at 4-8°C, it will be spread twice. Soil, do not remove the soil in windy days, which is conducive to slowing down the seedlings and making them gradually adapt to changes in environmental conditions; the removal of soil should not be too late, otherwise the covering soil will thaw and sink, stick to the seedlings, and affect growth. After removing the soil, it should be irrigated in time. to prevent spring drought;

Method 3. Set up wind barriers: In order to reduce the damage caused by cold and dry winds to the trees, wind barriers are erected in the upwind direction of the trees. The height should exceed the height of the tree, and it is usually supported by fir or bamboo poles or tied with wooden stakes to prevent it from being blown down by strong winds. The place where the wind leaks is then covered with straw, tied with thin sticks, or wiped outside the mat. mud caulking;

Method 4. Whitewashing and white spraying: Whitening the branches with lime and lime sulfur mixture can reduce the damage to the sunny skin due to the excessive temperature difference between day and night, and can kill some overwintering diseases and insect pests. Between late October and mid-November, the whitening time should not be delayed. If the temperature is too low, the whitening material will fall off in flakes. After the trunk is whitened, the absorption of solar heat by the tree body in early spring will be reduced, and the temperature increase of the tree will be reduced. The speed can delay the germination of the tree body by 2-3 days, thereby effectively preventing the early growth of the tree body and the frost in the early spring; for the tree species with early flower bud germination, the tree body can be sprayed white, and the flowering can also be delayed to avoid the harm of late frost;

Method 5. Plastic film cold protection method: Seedlings in seedbeds such as spruce, arborvitae, juniper, etc. are used as seedlings to use iron bars and bamboo slices to support the seedbed to form an arch, and cover it with plastic film to make a small arch shed. It is also suitable for overwintering and cold protection of various shrubs, grasses and flowers in the road separation zone; in addition, the bottom water must be filled before covering the film; if it is cold in winter, it can be covered with thick grass curtains on the plastic shed to prevent cold insulation effect;

Method 6. Chemical control method: use antifreeze agent to spray antifreeze before freezing, and spray 3-6 times.

The beneficial effects of the present invention are: the above-mentioned methods are very clearly expressed, and each method is complementary, and the effect of using multiple methods together will be better, and the staff will work with reference to the above-mentioned methods, and it is not easy to appear large Mistakes or errors can also improve work efficiency. The method of the invention is reasonable, convenient to implement and convenient to prevent and cure.

Detailed ways:

In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

The method for antifreeze and heat preservation of greening trees in Northeast China is characterized in that: it comprises the following methods,

Method 1. Cultivation of the root neck: After the winter water irrigation is completed, combined with the sealing of the weir, a soil mound with a diameter of 50-80 cm and a height of 30-50 cm is cultivated at the root neck of the tree, which can prevent low temperature frostbite of the root neck and tree roots, and can also reduce evaporation of soil moisture;

Method 2. Covering soil: In early spring, when the soil has not been thawed, the roots of the trees are difficult to absorb water. At this time, the air is dry, the temperature rises quickly, and the evaporation is large, which will easily cause the physiological drought of the plants and the shoots; In the soil, keep the seedlings and the soil of the seedbed at a certain temperature, free from the influence of rapid changes in temperature and other external adverse factors; the method of covering the soil to prevent cold is suitable for Chinese pine, sylvestris sylvestris, spruce, etc., and the tree species that are prone to mildew and rot should not be used This method: covering the soil to prevent cold should be carried out when the seedlings have stopped growing and the soil is frozen 3-5 days before the temperature is stable at -3-2°C;

The specific method of covering the soil is: use a plow to plow up the trail, cover the soil in one direction on the bed after crushing the soil, make the seedlings fall to one side, do not cover the soil from the top of the seedlings; cover the soil evenly, and bury it tightly to avoid freezing damage caused by soil ventilation , and on the windward side of the south side of the bed surface, the covering soil should be thickened; after covering the soil, it should be checked frequently, and the exposed seedlings should be covered in time; 1-2 weeks before the emergence of seedlings in the spring of the following year, when the temperature is stable at 4-8°C, it will be spread twice. Soil, do not remove the soil in windy days, which is conducive to slowing down the seedlings and making them gradually adapt to changes in environmental conditions; the removal of soil should not be too late, otherwise the covering soil will thaw and sink, stick to the seedlings, and affect growth. After removing the soil, it should be irrigated in time. to prevent spring drought;

Method 3. Set up wind barriers: In order to reduce the damage caused by cold and dry winds to the trees, wind barriers are erected in the upwind direction of the trees. The height should exceed the height of the tree, and it is usually supported by fir or bamboo poles or tied with wooden stakes to prevent it from being blown down by strong winds. The place where the wind leaks is then covered with straw, tied with thin sticks, or wiped outside the mat. mud caulking;

Method 4. Whitewashing and white spraying: Whitening the branches with lime and lime sulfur mixture can reduce the damage to the sunny skin due to the excessive temperature difference between day and night, and can kill some overwintering diseases and insect pests. Between late October and mid-November, the whitening time should not be delayed. If the temperature is too low, the whitening material will fall off in flakes. After the trunk is whitened, the absorption of solar heat by the tree body in early spring will be reduced, and the temperature increase of the tree will be reduced. The speed can delay the germination of the tree body by 2-3 days, thereby effectively preventing the early growth of the tree body and the frost in the early spring; for the tree species with early flower bud germination, the tree body can be sprayed white, and the flowering can also be delayed to avoid the harm of late frost;

Method 5. Plastic film cold protection method: Seedlings in seedbeds such as spruce, arborvitae, juniper, etc. are used as seedlings to use iron bars and bamboo slices to support the seedbed to form an arch, and cover it with plastic film to make a small arch shed. It is also suitable for overwintering and cold protection of various shrubs, grasses and flowers in the road separation zone; in addition, the bottom water must be filled before covering the film; if it is cold in winter, it can be covered with thick grass curtains on the plastic shed to prevent cold insulation effect;

Method 6. Chemical control method: use antifreeze agent to spray antifreeze before freezing, and spray 3-6 times.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (1)

1. the method for antifreeze and thermal insulation of afforestation trees in Northeast China is characterized in that: comprise the following methods, Method 1. Cultivation of the root neck: After the winter water irrigation is completed, combined with the sealing of the weir, a soil mound with a diameter of 50-80 cm and a height of 30-50 cm is cultivated at the root neck of the tree, which can prevent low temperature frostbite of the root neck and tree roots, and can also reduce evaporation of soil moisture; Method 2. Covering soil: In early spring, when the soil has not been thawed, the roots of the trees are difficult to absorb water. At this time, the air is dry, the temperature rises quickly, and the evaporation is large, which will easily cause the physiological drought of the plants and the shoots; In the soil, keep the seedlings and the soil of the seedbed at a certain temperature, free from the influence of rapid changes in temperature and other external adverse factors; the method of covering the soil to prevent cold is suitable for Chinese pine, sylvestris sylvestris, spruce, etc., and the tree species that are prone to mildew and rot should not be used This method: covering the soil to prevent cold should be carried out when the seedlings have stopped growing and the soil is frozen 3-5 days before the temperature is stable at -3-2°C; The specific method of covering the soil is: use a plow to plow up the trail, cover the soil in one direction on the bed after crushing the soil, make the seedlings fall to one side, do not cover the soil from the top of the seedlings; cover the soil evenly, and bury it tightly to avoid freezing damage caused by soil ventilation , and on the windward side of the south side of the bed surface, the covering soil should be thickened; after covering the soil, it should be checked frequently, and the exposed seedlings should be covered in time; 1-2 weeks before the emergence of seedlings in the spring of the following year, when the temperature is stable at 4-8°C, it will be spread twice. Soil, do not remove the soil in windy days, which is conducive to slowing down the seedlings and making them gradually adapt to changes in environmental conditions; the removal of soil should not be too late, otherwise the covering soil will thaw and sink, stick to the seedlings, and affect growth. After removing the soil, it should be irrigated in time. to prevent spring drought; Method 3. Set up wind barriers: In order to reduce the damage caused by cold and dry winds to the trees, wind barriers are erected in the upwind direction of the trees. The height should exceed the height of the tree, and it is usually supported by fir or bamboo poles or tied with wooden stakes to prevent it from being blown down by strong winds. The place where the wind leaks is then covered with straw, tied with thin sticks, or wiped outside the mat. mud caulking; Method 4. Whitewashing and white spraying: Whitening the branches with lime and lime sulfur mixture can reduce the damage to the sunny skin due to the excessive temperature difference between day and night, and can kill some overwintering diseases and insect pests. Between late October and mid-November, the whitening time should not be delayed. If the temperature is too low, the whitening material will fall off in flakes. After the trunk is whitened, the absorption of solar heat by the tree body in early spring will be reduced, and the temperature increase of the tree will be reduced. The speed can delay the germination of the tree body by 2-3 days, thereby effectively preventing the early growth of the tree body and the frost in the early spring; for the tree species with early flower bud germination, the tree body can be sprayed white, and the flowering can also be delayed to avoid the harm of late frost; Method 5. Plastic film cold protection method: Seedlings in seedbeds such as spruce, arborvitae, juniper, etc. are used as seedlings to use iron bars and bamboo slices to support the seedbed to form an arch, and cover it with plastic film to make a small arch shed. It is also suitable for overwintering and cold protection of various shrubs, grasses and flowers in the road separation zone; in addition, the bottom water must be filled before covering the film; if it is cold in winter, it can be covered with thick grass curtains on the plastic shed to prevent cold insulation effect; Method 6. Chemical control method: use antifreeze agent to spray antifreeze before freezing, and spray 3-6 times.