Construction method of biological fireproof barrier belt in west sichuan plateau region and barrier belt

CN122074341APending Publication Date: 2026-05-26GANZI TIBETAN AUTONOMOUS PREFECTURE FORESTRY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GANZI TIBETAN AUTONOMOUS PREFECTURE FORESTRY RES INST
Filing Date
2026-04-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing biological firebreaks are ineffective at blocking crown fires and underground fires in the western Sichuan plateau region. The selection of tree species lacks specificity, the establishment period is too long, and there is a lack of altitude-based stratification schemes, making it difficult to meet fire prevention needs.

Method used

Firebreaks with a width of 80-120m are adopted, and the pruning of trees and the stratified configuration of fire-resistant tree species based on altitude are combined. Fire-resistant tree species suitable for different altitude areas are selected, such as poplar, birch, rough-barked birch, sea buckthorn, and willow, to form a three-dimensional fire barrier. Tree species are screened using the entropy weight-TOPSIS method, surface combustibles are removed, tall trees are retained, and nitrogen-fixing tree species are configured to improve the soil.

Benefits of technology

It has constructed a rapid and effective three-dimensional fire-resistant barrier, enhanced ecological stability and biodiversity, shortened the construction period, adapted to the complex terrain of the plateau, and has long-term ecological benefits.

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Abstract

This invention discloses a method for constructing a biological firebreak in the western Sichuan plateau region and the resulting firebreak. The method includes: establishing firebreaks along roads, villages, power lines, and / or ridgelines; clearing surface combustibles and pruning trees; and then interplanting fire-resistant tree species according to altitude gradients: *Populus tomentosa*, *Birchia spp.*, and / or *Acer spp.* at 1000-2000m; *Birch spp.*, *Hippophae rhamnoides*, and / or *Rhododendron simsii* at 2000-3000m; *Salix matsudana* at 3000-4000m; and *Salix matsudana*, *Rhododendron simsii*, and / or *Populus tomentosa* in alpine oak forests above 3500m. This invention also provides the firebreak constructed by this method. This invention combines wide firebreaks, high-level pruning, and altitude-stratified tree species configuration to form a three-dimensional fire-resistant barrier that simultaneously blocks surface fires and crown fires. This effectively solves the problems of existing technologies lacking plateau-specific configurations and failing to provide three-dimensional fire protection, while also possessing ecological restoration and fire prevention functions.
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