| Fire cycle of the Canada＇s boreal region and its potential response to global change |
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| 引用本文： | ZHANG Quan-fa CHEN Wen-jun. Fire cycle of the Canada＇s boreal region and its potential response to global change[J]. 林业研究, 2007, 18(1): 55-61. DOI: 10.1007/s11676-007-0010-3 |
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| 作者姓名： | ZHANG Quan-fa CHEN Wen-jun |
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| 作者单位： | [1]Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, P. R. China [2]Applications Division, Canada Centre for Remote Sensing, 588 Booth Street, Ottawa, Ontario KIA OY7, Canada |
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| 基金项目： | Program for Energy Research and Develop (PERD) of Canada，中国科学院资助项目 |
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| 摘 要： | Interactions of fire cycle and plant species＇ reproductive characteristics could determine vegetation distribution pattern of a landscape. In Canada＇s boreal region, fire cycles before the Little Ice Age （c. 1850s） ranged from 30-130 years and 25-234 years afterwards until the settlement period （c. 1930s） when longer fire cycles occurred in response to climatic change and human interference. Analysis indicated that fire cycles were correlated with growing season （April-October） temperature and precipitation departure from the 1961-1990 normal, varying by regions. Assuming that wildfires will respond to future warming similar to the manner during the past century, an assessment using climatic change scenarios CGCMI, CGCM2 and HadCM2 indicates fire cycles would divert to a range of 80-140 years in the west taiga shield, more than 700 years for the east boreal shield and east taiga shield, and 300-400 years for the boreal plains in 2050.
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| 关 键 词： | 加拿大 北部地区 北方针叶林 森林 火灾周期 全球气候变化 响应 空间变异性 |
| 收稿时间： | 2006-11-17 |
| 修稿时间： | 2006-12-28 |
Fire cycle of the Canada’s boreal region and its potential response to global change |
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| Zhang Quan-fa,Chen Wen-jun. Fire cycle of the Canada’s boreal region and its potential response to global change[J]. Journal of Forestry Research, 2007, 18(1): 55-61. DOI: 10.1007/s11676-007-0010-3 |
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| Authors: | Zhang Quan-fa Chen Wen-jun |
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| Affiliation: | (1) Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, P. R. China;(2) Applications Division, Canada Centre for Remote Sensing, 588 Booth Street, Ottawa, Ontario, K1A 0Y7, Canada |
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| Abstract: | Interactions of fire cycle and plant species' reproductive characteristics could determine vegetation distribution pattern of a landscape. In Canada's boreal region, fire cycles before the Little Ice Age (c. 1850s) ranged from 30-130 years and 25-234 years afterwards until the settlement period (c. 1930s) when longer fire cycles occurred in response to climatic change and human interference. Analysis indicated that fire cycles were correlated with growing season (April-October) temperature and precipitation departure from the 1961-1990 normal, varying by regions. Assuming that wildfires will respond to future warming similar to the manner during the past century, an assessment using climatic change scenarios CGCM1, CGCM2 and HadCM2 indicates fire cycles would divert to a range of 80-140 years in the west taiga shield, more than 700 years for the east boreal shield and east taiga shield, and 300-400 years for the boreal plains in 2050. |
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| Keywords: | Boreal forest Fire cycle Global change Spatial variability |
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