Effects of Fuel Removal on the Flammability of Surface Fuels in Betula platyphylla in the Wildland-Urban Interface

被引：0

作者：

Chen, Xintong ^{[1
]}

Wang, Mingyu ^{[2
]}

Li, Baozhong ^{[1
]}

Wang, Lixuan ^{[1
]}

Ning, Jibin ^{[1
]}

Yang, Guang ^{[1
]}

Yu, Hongzhou ^{[1
]}

机构：

[1] Northeast Forestry Univ, Coll Forestry, Key Lab Sustainable Forest Ecosyst Management, Northern Forest Fire Management Key Lab State Fore, Harbin 150040, Peoples R China

[2] Chinese Acad Forestry, Ecol & Nat Conservat Inst, Key Lab Forest Protect Natl Forestry & Grassland A, Beijing 100091, Peoples R China

来源：

FIRE-SWITZERLAND | 2024年 / 7卷 / 07期

基金：

中国国家自然科学基金;

关键词：

fuel removal; WUI; flammability; physical and chemical properties; removal intensity; time scale; PINUS-TABULIFORMIS FOREST; POTENTIAL FIRE BEHAVIOR; MANAGEMENT; LOAD; FARM; CALIFORNIA; WILDFIRE; LITTER; TRENDS;

D O I：

10.3390/fire7070261

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

This paper aimed to provide technical support for fuel management by exploring different strengths of fuel removal on the physical and chemical properties and flammability of Betula platyphylla forests in the wildland-urban interface. After investigating the northeastern region during the forest fire prevention period in May 2023, a typical WUI area was selected, and three different treatment strengths, combined with a control, were set up to carry out indoor and outdoor experiments for 27 weeks. Compared with previous studies, this study mainly investigated and analyzed the dynamic changes in the physical and chemical properties and fuel flammability after different intensities of treatments on a time scale. By processing and analyzing the data, the following results were obtained. Significant differences existed in the fuel loading of different time-lag fuels over time (p < 0.05). The ash and ignition point of 1 h time-lag fuel after different treatment intensities generally increased first and then decreased, and the higher heat value and ash-free calorific value generally decreased first and then increased. The physical and chemical properties of 10 h and 100 h time-lag fuel fluctuated with time, but the overall change was insignificant. The indicator that had the greatest impact on the combustion comprehensive score for different time-lag fuels was fuel loading. The change in the flammability of dead surface fuel with time varied significantly, and different treatment intensities effectively reduced the fuel's flammability. The reduction effects, presented in descending order, were as follows: medium-strength treatment > low-strength treatment > high-strength treatment > control check. In conclusion, different treatment intensities have significant effects on the flammability of the fuel, and the medium-strength treatment has the best effect. Considering the ecological and economic benefits, adopting the medium-strength treatment for the WUI to regulate the fuel is recommended.

引用

页数：16

共 49 条

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