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[1]严思晓,刘万,林雪儿,等.武夷山风景名胜区森林地表可燃物含水率特征及其与环境因子的关系*[J].应用与环境生物学报,2018,24(04):1-11.[doi:10.3724/SP.J.1145.2017.09024]
 YAN Sixiao,LIU Wan,LIN Xueer,et al.Forest surface fuel moisture content characteristics and its relationship with environmental factors in Wuyishan Scenery District[J].Chinese Journal of Applied & Environmental Biology,2018,24(04):1-11.[doi:10.3724/SP.J.1145.2017.09024]
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武夷山风景名胜区森林地表可燃物含水率特征及其与环境因子的关系*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
24卷
期数:
2018年04期
页码:
1-11
栏目:
研究论文
出版日期:
2018-08-25

文章信息/Info

Title:
Forest surface fuel moisture content characteristics and its relationship with environmental factors in Wuyishan Scenery District
文章编号:
201709024
作者:
严思晓1刘万1林雪儿1周梦遥1张嘉诚1张丽平1侯栋梁2何东进1**游巍斌1**朱建琴3
1福建农林大学林学院 福州 350002
2福建农林大学生命科学学院 福州 350002
3武夷山风景名胜区管理委员会 武夷山 354300
Author(s):
YAN Sixiao1 LIU Wan1 LIN Xue’er1 ZHOU Mengyao1 Zhang Jiacheng1 ZHANG Liping1 HOU Dongliang2 HE Dongjin1* YOU Weibin1 ZHU Jianqin3
1 College of Forestry, Fujian Agriculture and Forestry university, Fuzhou 350002, China?
2 College of Life Science, Fujian Agriculture and Forestry university, Fuzhou 350002, China?
3Administration Committee of the Wuyishan Scenery District, Wuyishan 354300, China
关键词:
绝对含水率熄灭含水率环境因子冗余分析(RDA)武夷山
Keywords:
Absolute moisture content Extinction moisture content Environmental factors Redundancy analysis(RDA) Wuyishan
DOI:
10.3724/SP.J.1145.2017.09024
摘要:
森林可燃物是森林火灾发生与蔓延的物质基础,充分了解地表可燃物含水率特征对开展森林火险天气预报和火行为模拟研究尤为关键。以世界双遗产地武夷山风景名胜区内4种森林类型地表可燃物为研究对象,采用外业调查与内业实验相结合的方法,对比分析了地表可燃物含水率(绝对含水率与熄灭含水率)特征差异及其与地形、林分等14个影响因子的关系。结果表明:活地表可燃物绝对含水率、熄灭含水率在4种林型间差异较小,死地表可燃物之间差异较大,其中毛竹林在不同种类间绝对含水率较高,熄灭含水率较低,马尾松近成熟林则相反。在灌木、草本、1hr、10hr可燃物中,毛竹林绝对含水率大于熄灭含水率,不易点燃;马尾松近成熟林灌木、草本绝对含水率大于熄灭含水率,1hr和10 hr可燃物绝对含水率<熄灭含水率,容易点燃。绝对含水率中,不同坡向毛竹林的地表可燃物无显著差异,马尾松近成熟林仅在灌木、1hr可燃物有差异,1hr差异表现为阴坡>阳坡。冗余分析(RDA)结果显示,活可燃物、死可燃物受不同的环境因子影响,环境因子对死可燃物含水率的解释量高于活可燃物。两种可燃物含水率指标中,熄灭含水率相对稳定,在森林点燃风险预测与模型参数选择方面优于绝对含水率。
Abstract:
Forest fuel is the material foundation in the process of forest fire occurrence and spread, so it is very important to better understand surface fuel moisture content for forecasting a potential forest fire and performing a fire behavior simulation. In a World Heritage Sites, Wuyishan Scenery District ,with surface fuel in four forest types as the research object, we analyzed differences of surface fuels moisture content (absolute moisture content and extinction moisture content) by the method of combining field investigation with internal experiment and their relationships with fourteen impacting factors such as terrain, stand. The results showed that the differences between live surface fuels moisture content (absolute moisture content and extinction moisture content) were relatively small and dead surface fuels were greater in four forest types, and bamboo forest was higher in absolute moisture content and lower in extinction moisture content in different kinds, and nearly matured Pinus massoniana forest was opposite. It wasn’t easy to ignite in shrubs, herbs, 1hr and 10hr fuel, because bamboo forest absolute moisture content was greater than extinction moisture content and also wasn’t easy to ignite in shrubs, herbs but was easy to ignite in 1hr and 10hr fuel of nearly matured Pinus massoniana forest. There weren’t significant differences in surface fuel absolute moisture content between different slope directions of bamboo forest but were differences in shrub, 1hr of nearly matured Pinus massoniana forest, shady slope was greater than sunny slope in 1hr. The redundancy analysis indicated that live and dead fuels were affected by different environmental factors which has more influenced on moisture content of the dead fuel than that of live fuel. Of the two indicators of moisture content of combustibles, extinction moisture content is relatively stable, which is superior to absolute moisture content in the prediction of forest fire risk and the selection of model parameters.

相似文献/References:

[1]严思晓,刘万,林雪儿,等.武夷山风景名胜区森林地表可燃物含水率特征及其与环境因子的关系?[J].应用与环境生物学报,2018,24(01):146.[doi:10.19675/j.cnki.1006-687x.2017.09024]
 YAN Sixiao,LIU Wan,LIN Xueer,et al.Characteristics of forest surface fuel moisture contents and their relationships with environmental factors in Wuyi Mountain scenery district[J].Chinese Journal of Applied & Environmental Biology,2018,24(04):146.[doi:10.19675/j.cnki.1006-687x.2017.09024]

备注/Memo

备注/Memo:
收稿日期:2017-09-13 接受日期:2017-10-17
*国家自然科学基金项目 (41301203)、福建省生态产业绿色技术重点实验室(武夷学院)开放课题 (WYKF2016-4) 和教育部博士学科点专项基金项目 (20133515120007) 资助
**通讯作者(E-mail:fjhdj1009@126.com)
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更新日期/Last Update: 2017-11-28