| 陈启良,叶 彪,王秋华,洪瑞成,王 劲,陈诗俊,马 诚,朱熙隆.火后萌生栓皮栎林地表可燃物特征研究[J].林业调查规划,2025,50(1):153-157 |
| 火后萌生栓皮栎林地表可燃物特征研究 |
| Characteristics of Surface Fuels in Post-fire SproutingQuercus variabilis Forest |
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| DOI： |
| 中文关键词: 燃烧性 地表可燃物 栓皮栎 森林防火期 云南森林自然中心 |
| 英文关键词: combustibility surface fuels Quercus variabilis forest fire prevention period Yunnan Forest
Nature Center |
| 基金项目:国家自然科学基金(32160376,31960318)和云南省教育厅2022 年研究生科学研究项目(2023Y0778). |
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| 中文摘要: |
| 以云南森林自然中心摩天岭林区2010年火灾后的萌生栓皮栎林为研究对象,分别于云南省
防火期初期和高火险期采集其林下地表可燃物,对可燃物的燃点、绝对含水率、热值、灰分含量、粗脂肪、火行为等特征进行研究。结果表明,防火期初期地表可燃物平均绝对含水率为10.5%、平均
热值为19 406 kJ/ kg,引燃后火焰维持时间为98~141 s;高火险期平均绝对含水率为4.6%,平均热值为20 249 kJ/kg,火焰维持时间为99~182 s。高火险期栓皮栎林地表可燃物燃烧性强,危害较大。 |
| 英文摘要: |
| The Quercus variabilis forest sprouted after the fire in 2010 in the Motianling forest area of Yunnan
Forest Nature Center was taken as the research object. Surface fuels under the forest were collected at the beginning
of the fire prevention period and during the high fire risk period in Yunnan Province, and the characteristics
of ignition point, absolute moisture content, calorific value, ash content, crude fat, and fire behavior
of the fuels were studied. The results showed that the average absolute moisture content of surface
fuels at the beginning of the fire prevention period was 10.5%, with an average calorific value of 19406 kJ/
kg and a flame maintenance time after ignition of 98-141 seconds; the average absolute moisture content
during the high fire risk period was 4.6%, with an average calorific value of 20249 kJ/kg and a flame maintenance
time of 99-182 seconds. The fuels of Q. variabilis during the high fire risk period exhibited strong
combustibility, indicating a greater hazard. During the high fire risk period, the combustibility of surface fuels in Quercus variabilis forests was strong and the harm was significant. |
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