气候变化领域集成服务门户(CCPortal): Revealing Three-Dimensional Variations in Fuel Structures in Subtropical Forests through Backpack Laser Scanning

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DOI	10.3390/f15010155
	Revealing Three-Dimensional Variations in Fuel Structures in Subtropical Forests through Backpack Laser Scanning
	Kang, Ping; Lin, Shitao; Huang, Chao; Li, Shun; Wu, Zhiwei; Sun, Long
发表日期	2024
EISSN	1999-4907
起始页码	15
结束页码	1
卷号	15 期号:1
英文摘要	Wildfire hazard is a prominent issue in subtropical forests as climate change and extreme drought events increase in frequency. Stand-level fuel load and forest structure are determinants of forest fire occurrence and spread. However, current fuel management often lacks detailed vertical fuel distribution, limiting accurate fire risk assessment and effective fuel policy implementation. In this study, backpack laser scanning (BLS) is used to estimate several 3D structural parameters, including canopy height, crown base height, canopy volume, stand density, vegetation area index (VAI), and vegetation coverage, to characterize the fuel structure characteristics and vertical density distribution variation in different stands of subtropical forests in China. Through standard measurement using BLS point cloud data, we found that canopy height, crown base height, stand density, and VAI in the lower and middle-height strata differed significantly among stand types. Compared to vegetation coverage, the LiDAR-derived VAI can better show significant stratified changes in fuel density in the vertical direction among stand types. Among stand types, conifer-broadleaf mixed forest and C. lanceolata had a higher VAI in surface strata than other stand types, while P. massoniana and conifer-broadleaf mixed forests were particularly unique in having a higher VAI in the lower and middle-height strata, corresponding to the higher surface fuel and ladder fuel in the stand, respectively. To provide more informative support for forest fuel management, BLS LiDAR data combined with other remote sensing data were advocated to facilitate the visualization of fuel density distribution and the development of fire risk assessment.
英文关键词	backpack laser scanning; fuel density; 3D structure; vegetation area index; fuel management; subtropical forests
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:001148918500001
来源期刊	FORESTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299965
作者单位	Jiangxi Normal University; Jiangxi Agricultural University; Northeast Forestry University - China
推荐引用方式 GB/T 7714	Kang, Ping,Lin, Shitao,Huang, Chao,et al. Revealing Three-Dimensional Variations in Fuel Structures in Subtropical Forests through Backpack Laser Scanning[J],2024,15(1).
APA	Kang, Ping,Lin, Shitao,Huang, Chao,Li, Shun,Wu, Zhiwei,&Sun, Long.(2024).Revealing Three-Dimensional Variations in Fuel Structures in Subtropical Forests through Backpack Laser Scanning.FORESTS,15(1).
MLA	Kang, Ping,et al."Revealing Three-Dimensional Variations in Fuel Structures in Subtropical Forests through Backpack Laser Scanning".FORESTS 15.1(2024).