Post-fire-disaster emergency processing method for hillslope severe burned area

It is a technology for fire-burned land and emergency treatment. It is applied in electrical digital data processing, special data processing applications, instruments, etc. It can solve the problems of inconvenient transportation, living trees can not meet the standard of sparse forest, and the economy is underdeveloped, so as to speed up the construction speed. , the effect of reducing the amount of soil erosion, saving manpower and financial costs

Inactive Publication Date: 2014-06-25
INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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  • Application Information

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Problems solved by technology

[0007] 4) Extremely severe: more than 90% of the standing trees are damaged, and the remaining living trees do not meet the standard of open forest
[0011] Forest fires often occur in remote areas with inconvenient transportation and underdeveloped economy
A...

Method used

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  • Post-fire-disaster emergency processing method for hillslope severe burned area

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Embodiment example

[0068] 1. Investigation of burnt areas

[0069] (1) Determining the level of the burnt area

[0070] According to the "Notice on the Technical Regulations for Continuous National Forest Resources Inventory" issued by the State Forestry Administration, the damage level of the burned area is determined according to the damage to the vegetation after the fire.

[0071] 1) Slightly burned areas: less than 20% of the standing trees are damaged, and the growth can still be restored;

[0072] 2) Moderately burned land: 20% to 49% of the standing trees are damaged, and the growth is obviously inhibited;

[0073] 3) Severely burned areas: 50% to 90% of standing trees are damaged, mainly dying and dead trees;

[0074] 4) Extremely severe fire-burned areas: more than 90% of the standing trees are damaged, and the remaining standing trees do not meet the standard of open forest.

[0075] (2) Measure the slope (P) of the slope where the burnt area is located

[0076] Use a slope measur...

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Abstract

The invention discloses a post-fire-disaster emergency processing method for a hillslope severe burned area. The method comprises the steps that obtained burned area vegetation damaged situation data are compared with burned area damaged level data, and the damaged level of the burned area is determined; if the damaged level is the severe or extremely severe level, the gradient and the area of the burned area are obtained; the critical slope length and the set length and interval distance of barriers are determined according to the gradient when a rainfall erosion gulley occurs; the number of the needed barriers is determined according to the area of the burned area, and the length and the interval distance of the barriers; the number of dead trees to be cut is determined according to the number of the barriers; the cut dead trees are cropped according to the number and the length of the needed barriers; the processed barriers are fixedly arranged on the burned area according to the interval of the barriers. According to the post-fire-disaster emergency processing method, materials on the hillslope burned area are obtained, the water and soil loss barriers are arranged, the large-area water and soil loss degree in the hillslope burned area can be effectively reduced, and the vegetation recovery speed is improved.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a post-fire emergency treatment method for severely burned slopes. Background technique [0002] Forest fire is the uncontrolled burning of forests, which spreads and expands freely in forest land, bringing disasters to forests, forest ecosystems and humans. [0003] According to the State Forestry Administration’s “Notice on the Technical Regulations on Continuous National Forest Resources Inventory”, according to the vegetation damage after the fire, the fire intensity is divided into four levels: mild, moderate, severe and extremely severe: [0004] 1) Mild: less than 20% of the damaged standing trees can still recover; [0005] 2) Moderate: 20% to 49% of standing trees are affected, and the growth is significantly inhibited; [0006] 3) Severe: 50% to 90% of standing trees are damaged, mainly dying and dead trees; [0007] 4) Extremely severe: more than 90% ...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 赵凤君舒立福王立中王明玉田晓瑞陈鹏宇
Owner INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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