期刊
INTERNATIONAL JOURNAL OF WILDLAND FIRE
卷 23, 期 3, 页码 350-362出版社
CSIRO PUBLISHING
DOI: 10.1071/WF13054
关键词
airborne laser scanning; ALS; canopy base height; canopy bulk density; canopy fuel load; forest inventory; fuel management; Galicia; Plan Nacional de Ortofotografia Aerea de Espana; remote sensing; Spanish PNOA project; stand height
类别
资金
- Spanish Ministry of Science and Innovation [AGL2008-02259/FOR]
- Galician Government, Xunta de Galicia, Direccion Xeral de Montes [09MRU022291PR]
- Norvento (Multinational energy company) [PGIDT09REM023E]
- Galician Government, Direccion Xeral de Ordenacion e Calidade do Sistema Universitario de Galicia (Conselleria de Educacion e Ordenacion Universitaria)
- European Social Fund (Official Journal of Galicia - DOG) [9]
Crown fire initiation and spread are key elements in gauging fire behaviour potential in conifer forests. Crown fire initiation and spread models implemented in widely used fire behaviour simulation systems such as FARSITE and FlamMap require accurate spatially explicit estimation of canopy fuel complex characteristics. In the present study, we evaluated the potential use of very low-density airborne LiDAR (light detection and ranging) data (0.5 first returns m(-2)) - which is freely available for most of the Spanish territory - to estimate canopy fuel characteristics in Pinus radiata D. Don stands in north-western Spain. Regression analysis indicated strong relationships (R-2=0.82-0.98) between LiDAR-derived metrics and field-based fuel estimates for stand height, canopy fuel load, and average and effective canopy base height Average and effective canopy bulk density (R-2=0.59-0.70) were estimated indirectly from a set of previously modelled forest variables. The LiDAR-based models developed can be used to elaborate geo-referenced raster files to describe fuel characteristics. These files can be generated periodically, whenever new freely available airborne LiDAR data are released by the Spanish National Plan of Aerial Orthophotography, and can be used as inputs in fire behaviour simulation systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据