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

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% ...

AI Technical Summary

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

At present, there are certain technical measures for disturbed ecosystems on slopes, but these technical measures are often concentrated in highways, tourist attractions, urban greening, etc. Almost no emergency measures have been implemented in the burned area

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