主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2024, Vol. 43 ›› Issue (7): 1012-1015.

• • 上一篇    下一篇

大娄山典型林分草本可燃物载量及其影响因素分析

刘讯1,2, 顾林静1,2, 张运林1,2, 彭徐剑3   

  1. （1. 贵州师范学院 生物科学学院，贵州 贵阳 550018；2. 贵州省林火生态与管理重点实验室，贵州 贵阳550018；3. 南京警察学院，江苏 南京210023）
  • 出版日期:2024-07-19 发布日期:2024-07-15
  • 作者简介:刘 讯(1979- )，男，河南鹿邑人，贵州师范学院生物科学学院院长，副教授，博士，主要从事林火生态与管理方面的研究，贵州省贵阳市乌当区高新路115号，550018。
  • 基金资助:
    基金项目：国家自然科学基金项目（32201563）；贵州省科技支撑计划项目（黔科合支撑[2022]249）；贵州师范学院校级博士课题研究成果（2021BS020）

Analysis of herbaceous fuel load and its influencing factors in typical forest stands of Dalou mountain

Liu Xun1,2, Gu Linjing1,2, Zhang Yunlin1,2, Peng Xujian3   

  1. (1. School of Biological Sciences, Guizhou Education University, Guizhou Guiyang 550018, China;2. Key Laboratory of Forest Fire Ecology and Management of Guizhou Province, Guizhou Guiyang 550018, China;3. Nanjing Police University, Jiangsu Nanjing 210023, China)
  • Online:2024-07-19 Published:2024-07-15

摘要： 以大娄山6种典型林分的草本可燃物为研究对象，通过对相同林分和不同林分下草本可燃物载量进行差异性及相关性分析，结合林分特征因子进行逐步回归分析，得到草本可燃物载量的预测模型。结果表明：阔叶混交林内草本可燃物载量最大值为0.759 t/hm2，杉木林最小，仅为0.058 t/hm2；马尾松林的草本可燃物载量主要与平均厚度相关，而阔叶混交林的草本可燃物载量主要受平均盖度和林分密度影响；相同林分时，马尾松林下模型的拟合优度为0.885，拟合效果较好，平均厚度、郁闭度和平均地径显著负向影响草本可燃物的载量；阔叶混交林下模型拟合优度为0.973，拟合效果好，平均盖度显著正向影响草本可燃物的载量。本研究对大娄山森林可燃物调控和科学林火管理具有重要意义。

关键词: 载量, 草本可燃物, 预测模型, 林分特征

Abstract: Taking the herbs of six typical forest stands in Dalou mountain as the research object, the differences and correlations in herbaceous load under the same and different forest types were analyzed, and stepwise regression analysis was performed with the forest characteristic factors to obtain a herbaceous load prediction model. The results showed that: the maximum herbaceous load in the broad-leaved mixed forest was 0.759 t/hm2, while the minimum was in the Cunninghamia lanceolata forest, which was only 0.058 t/hm2; The herbaceous load of Pinus massoniana forest is mainly related to the average thickness, while the herbaceous load of broad-leaved mixed forests is mainly influenced by the average coverage and stand density; The goodness of fit of the understory model of Pinus massoniana under the same forest type is 0.885, indicating a good fitting effect. The average thickness, canopy closure, and average ground diameter significantly negatively affect the herbaceous load; The goodness of fit of the model under the broad-leaved mixed forest is 0.973, indicating a good fitting effect. The average thickness significantly positively affects the herbaceous load. This study is of great significance for the study of herbaceous load and scientific forest fire management in Dalou mountain.

Key words: loading, herbaceous fuel, prediction model, forest stand characteristics