CN110523023A - A method for reducing the combustibility of forest tending logging residues - Google Patents

Abstract

The invention discloses a method for reducing the combustibility of forest tending and felling residues, which relates to the field of forest fire prevention. The combustibility of forest tending residues is reduced by growing fungi on the forest tending residues in a short period of time, and the woody residues corroded by fungi , when the temperature rises, it is not easy to be gasified to produce an open flame, which greatly reduces the speed of fire spread, thereby reducing the risk of forest fires; the method is simple and easy to operate, and the forest tending residues are treated on the spot without centralized transportation, which greatly reduces the risk of forest fires. It reduces the cost of forest management; the forest tending residue left in the forest is conducive to the formation of granular humus soil, which enhances the forest nutrient cycle; in summary, leaving the forest tending residue in the forest to reduce its combustion, It not only reduces the risk of forest fires, but also enhances the cycle process of the forest ecosystem, and at the same time saves the cost of forest management, achieving the goal of three wins with one fell swoop, and is suitable for large-scale promotion and application in forest management.

Description

A method for reducing the combustibility of forest tending logging residues

technical field

The invention relates to the field of forest fire prevention, in particular to a method for reducing the combustibility of forest tending and felling residues.

Background technique

As an important part of modern forest management, forest tending plays a vital role in the overall development of forestry industry and the improvement of economic benefits. A large number of residues will be produced in the process of forest tending and management, specifically referring to those substances other than timber standards formed by artificial techniques or management measures during the process, mainly including branches, small diameter logs, bark, roots, and leaves. , shrubs, etc., these residues are left in the forest without cleaning, and as time goes by, the moisture will be lost and become flammable and combustible. They may be ignited when they encounter a fire source, which greatly increases the possibility of forest fires. The cost of transporting away these residues is high, and the nutrients of the forest cannot be replenished through material circulation.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a method for reducing the flammability of forest tending and felling residues. Through the treatment of forest tending and felling residues, its flammability can be reduced in a short period of time, and it can be burned in the forest land. Continue to decompose, return nutrients to forest land, promote forest growth, and reduce operating costs.

The technical scheme that the present invention solves its technical problem adopts is:

A method for reducing the combustibility of forest tending logging residues, achieved through the following steps:

1) Cutting treatment: cut the harvesting residues into small sections with a length of 0.8-1.2 meters, and put them together;

2) Accumulation treatment: In places where there is a large open space in the forest and there is more time to be exposed to sunlight, the cut-off harvesting residues are piled up into several conical shapes with a bottom diameter of 2-3 meters and a height of 80-100 cm;

3) Water spraying treatment: spray water on each conical deposit according to the water content of the harvesting residues, so that the water content is 50-80%;

4) Fungal spraying: Spray white rot fungi, brown rot fungi, soft rot fungi, and organic material decomposing agents on the harvesting residues alone or in combination, and spray as evenly as possible;

5) Peripheral coverage: Cover the conical accumulation tightly with a 1mm thick plastic sheet, and compact and fix the plastic sheet around the accumulation;

6) Follow-up treatment: When the plastic cloth is damaged, replace the plastic cloth in time, and spray water and bacteria again according to the aforementioned requirements.

The distance between several conical deposits in step 2) is greater than 15 meters.

The present invention aims to reduce the flammability of forest tending residues by growing fungi on them in a relatively short period of time, and the woody residues corroded by fungi are not easy to be gasified to produce open flames when the temperature rises, which greatly reduces the risk of burning. The spread speed of the forest can be reduced, thereby reducing the risk of causing forest fires; the method is simple and easy to operate, and the forest tending residues are treated on the spot without centralized transportation, which greatly reduces the cost of forest management; the forest tending residues left in the forest are conducive to the formation of forest fires. Agglomerated humus soil enhances forest nutrient cycle; in summary, leaving forest tending residues in the forest for disposal to reduce its combustibility not only reduces the risk of forest fires, but also enhances the cycle process of forest ecosystems, It promotes the growth of forest trees, saves the cost of forest management, realizes the goal of winning three with one fell swoop, and is suitable for large-scale popularization and application in forest management.

Detailed ways

The present invention is described in detail below in conjunction with specific embodiment:

A method for reducing the combustibility of forest tending logging residues, achieved through the following steps:

1) Cutting treatment: cut the harvesting residues into small sections with a length of 0.8-1.2 meters, and put them together;

2) Accumulation treatment: In places where there is a large open space in the forest and there is more time to be exposed to sunlight, the cut-off harvesting residues are piled up into several conical shapes with a bottom diameter of 2-3 meters and a height of 80-100cm;

3) Water spraying treatment: spray water on each conical deposit according to the water content of the harvesting residues, so that the water content is 50-80%;

4) Fungal spraying: Spray white rot fungi, brown rot fungi, soft rot fungi, and organic material decomposing agents on the harvesting residues alone or in combination, and spray as evenly as possible;

5) Peripheral coverage: Cover the conical accumulation tightly with a 1mm thick plastic sheet, and compact and fix the plastic sheet around the accumulation;

6) Follow-up treatment: When the plastic cloth is damaged, replace the plastic cloth in time, and spray water and bacteria again according to the aforementioned requirements.

As a preferred manner, in this embodiment, the distance between several conical deposits in step 2) is greater than 15 meters.

In the method of the invention, the forest tending residues are uniformly cut into sections and placed in separate piles, sprayed with water and bacteria and covered with plastic cloth, so that the fungi can grow rapidly on the residues, thereby accelerating the decomposition of the residues in a short period of time , The purpose of reducing the flammability of residues. In this way, the forest tending residues do not need to be transported to the outside of the forest through high-cost methods, which reduces the expensive transportation costs in the forest management process. At the same time, the existence of forest tending residues is conducive to the formation of forest aggregate humus soil and promotes the growth of the next generation of forest trees. growth, so as to make the nutrient cycle system run better and ensure the stable and healthy development of the forest ecosystem. The treated forest tending residues rarely produce flammable gases during the ignition experiment. They only have the characteristics of charcoal burning. Compared with the original flammable residues, the ignition point is lowered by 26-95°C. Even if it is possible to burn, it will spread. Extremely slow and flameless combustion, which greatly reduces the potential for forest tending residues to cause forest fires.

The comparison test results of ignition point and gasification of forest tending residues without treatment and with treatment are shown in the table below:

Wood without spraying bacteria white rot fungus brown rot fungus soft rot fungus organic material decomposing agent ignition temperature 243^oC 278^oC 338^oC 273^oC 269^oC Is there any flammable gas produced Have rarely none rarely few

Of course, the above descriptions are not intended to limit the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention shall also belong to the present invention. protection scope of the invention.

Claims (2)

1. a kind of combustible method of reduction tending and cutting of forest residue, which is characterized in that be achieved by the steps of:

Truncation: logging residue is uniformly cut into the segment that length is 0.8-1.2 meters, is centrally placed together；

Product heap processing: chearance is larger, the place that has more time that can irradiate sunlight, the logging residue heap of section will be cut into Product is at diameter 2-3 meters of several bottoms, the cone of height 80-100cm；

Water spray processing: water spray is implemented according to deposit of the water content situation of logging residue to each cone, keeps its aqueous Amount is in 50-80%；

Fungi sprinkling: by whiterot fungi, brown rot fungus, soft-rot fungi, organic matter decomposing inoculant is independent or cooperation is sprayed at logging residue On, sprinkling as far as possible is uniform；

Periphery covering: being covered conical deposit tightly with the plastic cloth of 1mm thickness, around deposit that plastic cloth compacting is solid It is fixed；

Subsequent processing: when plastic cloth occurs larger damaged, replacing plastic cloth in time, and new root of laying equal stress on is sprayed water according to aforementioned claim sprays bacterium.

2. a kind of combustible method of reduction tending and cutting of forest residue according to claim 1, which is characterized in that step It is rapid 2) in the distance between several conical deposits be greater than 15 meters.