Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.08.027 |
The effects of burning season and severity on the mortality over time of Pinus nigra spp. salzmannii (Dunal) Franco and P. sylvestris L. | |
Valor, Teresa; Ramon Gonzalez-Olabarria, Jose; Pique, Miriam; Casals, Pere | |
2017-12-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 406 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain |
英文摘要 | Understanding tree mortality after fires can be used to improve planning of prescribed burning and post-burning salvage logging. This study aims to assess the effects of burning season, fire severity and tree size on the evolution of post-burning mortality of pine species with different fire resistance traits. In 2013, two paired plots (1 ha each) were burned, one in spring and the other in fall, in two mixed-stands of P. sylvestris and P. nigra, and the fire severity and tree size variables were measured. Mortality was assessed individually in a total of 933 pines during the following 3 years post-burning. We modeled the initial (1 year post-burning) and delayed (3 years post-burning) tree mortality using Firth logistic regression and Conditional Inference trees. The probability of dying after burning was lower in P. nigra than in P. sylvestris confirming that P. nigra has higher fire-resistance compared to the moderate fire-resistance of P. sylvestris. Initial mortality was slightly higher for pines burned in spring than for those burned in fall; however, after 3 years the proportion of pines that had died after the fall burns was higher than that after the spring burns. Nevertheless, for the two periods modeled, the likelihood of a pine dying was significantly higher in spring than in fall given a certain level of crown scorch. This suggests that pines with damaged crowns were more likely to die when burning occurred during periods of active growth. However, the higher fire severities at the base of the trees that occurred during the fall burns compared to the spring burns are probably the cause of the higher rates of delayed tree mortality. Higher likelihood of mortality in trees burned in fall, with higher percentages of white ashes in the stem base suggest basal stem girdling as a cause of delayed pine mortality. We can conclude that crown damage is more detrimental when burning occurs during the growth season, while longer combustion times during fall burns may have caused the higher delayed pine mortality in comparison with spring burns. |
英文关键词 | Delayed mortality Dormant season Forest management Fire ecology Prescribed fire Prescribed burning Post-fire mortality models Tree phenology |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416395800018 |
WOS关键词 | PREDICTING POSTFIRE MORTALITY ; MIXED-CONIFER FOREST ; PONDEROSA PINE ; TREE MORTALITY ; PRESCRIBED FIRES ; EASTERN OREGON ; SIERRA-NEVADA ; BARK BEETLES ; RESISTANCE ; PORTUGAL |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23663 |
专题 | 气候变化 |
作者单位 | CEMFOR CTFC, Forest Sci Ctr Catalonia, Ctra St Llorenc de Morunys,Km 2, Solsona 25280, Spain |
推荐引用方式 GB/T 7714 | Valor, Teresa,Ramon Gonzalez-Olabarria, Jose,Pique, Miriam,et al. The effects of burning season and severity on the mortality over time of Pinus nigra spp. salzmannii (Dunal) Franco and P. sylvestris L.[J]. FOREST ECOLOGY AND MANAGEMENT,2017,406. |
APA | Valor, Teresa,Ramon Gonzalez-Olabarria, Jose,Pique, Miriam,&Casals, Pere.(2017).The effects of burning season and severity on the mortality over time of Pinus nigra spp. salzmannii (Dunal) Franco and P. sylvestris L..FOREST ECOLOGY AND MANAGEMENT,406. |
MLA | Valor, Teresa,et al."The effects of burning season and severity on the mortality over time of Pinus nigra spp. salzmannii (Dunal) Franco and P. sylvestris L.".FOREST ECOLOGY AND MANAGEMENT 406(2017). |
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