Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1088/1748-9326/9/10/104015 |
Enhanced Australian carbon sink despite increased wildfire during the 21st century | |
Kelley, D. I.1; Harrison, S. P.1,2 | |
通讯作者 | Kelley, D. I. |
来源期刊 | ENVIRONMENTAL RESEARCH LETTERS
![]() |
ISSN | 1748-9326 |
出版年 | 2014 |
卷号 | 9期号:10 |
英文摘要 | Climate projections show Australia becoming significantly warmer during the 21st century, and precipitation decreasing over much of the continent. Such changes are conventionally considered to increase wildfire risk. Nevertheless, we show that burnt area increases in southern Australia, but decreases in northern Australia. Overall the projected increase in fire is small (0.72-1.31% of land area, depending on the climate scenario used), and does not cause a decrease in carbon storage. In fact, carbon storage increases by 3.7-5.6 Pg C (depending on the climate scenario used). Using a process-based model of vegetation dynamics, vegetation-fire interactions and carbon cycling, we show increased fire promotes a shift to more fire-adapted trees in wooded areas and their encroachment into grasslands, with an overall increase in forested area of 3.9-11.9%. Both changes increase carbon uptake and storage. The increase in woody vegetation increases the amount of coarse litter, which decays more slowly than fine litter hence leading to a relative reduction in overall heterotrophic respiration, further reducing carbon losses. Direct CO2 effects increase woody cover, water-use efficiency and productivity, such that carbon storage is increased by 8.5-14.8 Pg C compared to simulations in which CO2 is held constant at modern values. CO2 effects tend to increase burnt area, fire fluxes and therefore carbon losses in arid areas, but increase vegetation density and reduce burnt area in wooded areas. |
英文关键词 | carbon cycle fire regimes CO2 fertilization water-use efficiency dynamic vegetation modeling future environmental changes |
类型 | Article |
语种 | 英语 |
国家 | Australia ; England |
收录类别 | SCI-E |
WOS记录号 | WOS:000344964000019 |
WOS关键词 | GLOBAL FIRE EMISSIONS ; CLIMATE ; CO2 ; FOREST ; IMPACT ; COVER |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/181944 |
作者单位 | 1.Macquarie Univ, Sch Biol Sci, N Ryde, NSW 2109, Australia; 2.Univ Reading, Sch Archaeol Geog & Environm Sci, Reading RG6 6AH, Berks, England |
推荐引用方式 GB/T 7714 | Kelley, D. I.,Harrison, S. P.. Enhanced Australian carbon sink despite increased wildfire during the 21st century[J],2014,9(10). |
APA | Kelley, D. I.,&Harrison, S. P..(2014).Enhanced Australian carbon sink despite increased wildfire during the 21st century.ENVIRONMENTAL RESEARCH LETTERS,9(10). |
MLA | Kelley, D. I.,et al."Enhanced Australian carbon sink despite increased wildfire during the 21st century".ENVIRONMENTAL RESEARCH LETTERS 9.10(2014). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Kelley, D. I.]的文章 |
[Harrison, S. P.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Kelley, D. I.]的文章 |
[Harrison, S. P.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Kelley, D. I.]的文章 |
[Harrison, S. P.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。