Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0460.1 |
Role of Fire in the Global Land Water Budget during the Twentieth Century due to Changing Ecosystems | |
Li, Fang1; Lawrence, David M.2 | |
2017-03-01 | |
发表期刊 | JOURNAL OF CLIMATE
![]() |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Fire is a global phenomenon and the primary form of terrestrial ecosystem disturbance on a global scale. It is tightly coupled with climate, ecosystems, carbon and water cycles, and human activities. Through biomass burning and fire-induced plant-tissue mortality, current and historical fires significantly affect terrestrial ecosystems, which can alter hydrology fluxes. This study provides the first quantitative assessment and understanding about the influence of fire on the global land water budget due to changing terrestrial ecosystems during the twentieth century. This is done by quantifying the difference between twentieth-century fire-on and fire-off simulations using the Community Earth System Model (CESM). Results show that fire significantly reduces the annual evapotranspiration (ET) over the global land by 0.6 x 10(3) km(3) yr(-1) and increases global total of runoff in almost the same quantity, while having almost no impact (0.0 x 10(3) km(3) yr(-1)) on annual precipitation amount. Fire also weakens both the significant upward trend in total ET over global land prior to the 1950s and the downward trend from 1950 to about 1985 by approximately 35%. For the twentieth-century average, fire impact on ET and runoff is most clearly seen in the tropical savannas, African rain forests, and some boreal forests and southern Asian forests. Fire affects global ET and runoff through reducing vegetation canopy and vegetation height, which interact with fire-induced changes in biogeochemical cycle and result in drier and warmer surface air and higher wind speed. Globally speaking, reducing the vegetation canopy is the main pathway of fire's impact on ET and runoff. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395765900002 |
WOS关键词 | VEGETATION MODEL ; EARTH SYSTEM ; INTERMEDIATE COMPLEXITY ; CLIMATE IMPACTS ; CARBON BALANCE ; COVER CHANGE ; BURNED AREA ; SURFACE ; FOREST ; EVAPOTRANSPIRATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/19651 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Int Ctr Climate & Environm Sci, Beijing, Peoples R China; 2.Natl Ctr Atmospher Res, Boulder, CO 80301 USA |
推荐引用方式 GB/T 7714 | Li, Fang,Lawrence, David M.. Role of Fire in the Global Land Water Budget during the Twentieth Century due to Changing Ecosystems[J]. JOURNAL OF CLIMATE,2017,30(6). |
APA | Li, Fang,&Lawrence, David M..(2017).Role of Fire in the Global Land Water Budget during the Twentieth Century due to Changing Ecosystems.JOURNAL OF CLIMATE,30(6). |
MLA | Li, Fang,et al."Role of Fire in the Global Land Water Budget during the Twentieth Century due to Changing Ecosystems".JOURNAL OF CLIMATE 30.6(2017). |
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 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Li, Fang]的文章 |
[Lawrence, David M.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Li, Fang]的文章 |
[Lawrence, David M.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Li, Fang]的文章 |
[Lawrence, David M.]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。
修改评论