Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14096 |
Drought timing and local climate determine the sensitivity of eastern temperate forests to drought | |
D&1; 39;Orangeville, Loic2 | |
2018-06-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:6页码:2339-2351 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada; Germany; Sweden |
英文摘要 | Projected changes in temperature and drought regime are likely to reduce carbon (C) storage in forests, thereby amplifying rates of climate change. While such reductions are often presumed to be greatest in semi-arid forests that experience widespread tree mortality, the consequences of drought may also be important in temperate mesic forests of Eastern North America (ENA) if tree growth is significantly curtailed by drought. Investigations of the environmental conditions that determine drought sensitivity are critically needed to accurately predict ecosystem feedbacks to climate change. We matched site factors with the growth responses to drought of 10,753 trees across mesic forests of ENA, representing 24 species and 346 stands, to determine the broad-scale drivers of drought sensitivity for the dominant trees in ENA. Here we show that two factors-the timing of drought, and the atmospheric demand for water (i.e., local potential evapotranspiration; PET)-are stronger drivers of drought sensitivity than soil and stand characteristics. Droughtinduced reductions in tree growth were greatest when the droughts occurred during early-season peaks in radial growth, especially for trees growing in the warmest, driest regions (i.e., highest PET). Further, mean species trait values (rooting depth and psi(50)) were poor predictors of drought sensitivity, as intraspecific variation in sensitivity was equal to or greater than interspecific variation in 17 of 24 species. From a general circulation model ensemble, we find that future increases in earlyseason PET may exacerbate these effects, and potentially offset gains in C uptake and storage in ENA owing to other global change factors. |
英文关键词 | climate change drought evapotranspiration forest ecology phenology temperate forest tree-ring |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000433717700011 |
WOS关键词 | TREE GROWTH ; EXTREME DROUGHT ; STEM INCREMENT ; ELEVATED CO2 ; CARBON SINK ; RESPONSES ; PRECIPITATION ; VARIABILITY ; VULNERABILITY ; PRODUCTIVITY |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
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/17486 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Indiana Univ, Dept Biol, Bloomington, IN USA; 2.Univ Quebec Montreal, Ctr Etud Foret, Montreal, PQ, Canada; 3.Indiana Univ, Dept Geog, Bloomington, IN 47405 USA; 4.Harvard Univ, Harvard Forest, Petersham, MA USA; 5.Minist Forets Faune & Parcs Quebec, Direct Rech Forestiere, Quebec City, PQ, Canada; 6.Ouranos Climate Change Consortium, Montreal, PQ, Canada; 7.Univ Quebec, Dept Biol Chem & Geog, Rimouski, PQ, Canada; 8.SUNY ESF, Dept Forest & Nat Resources Management, Syracuse, NY USA; 9.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA; 10.Rider Univ, Geol Environm & Marine Sci, Lawrenceville, NJ 08648 USA; 11.Univ Maine, Sch Forest Resources, Orono, ME USA; 12.Univ Montreal, Dept Geog, Montreal, PQ, Canada; 13.Vermont Dept Forests Pk & Recreat, Essex Jct, VT USA; 14.Univ Vermont, Rubenstein Sch Environm & Nat Resources, Burlington, VT USA; 15.Univ Alabama, Dept Geog, Tuscaloosa, AL USA; 16.Max Planck Inst Biogeochem, Dept Biogeochem Proc, Jena, Germany; 17.Penn State Coll Agr Sci, Dept Ecosyst Sci & Management, State Coll, PA USA; 18.Ball State Univ, Dept Biol, Muncie, IN 47306 USA; 19.Stockholm Univ, Stockholm, Sweden; 20.Univ Vermont, Dept Geog, Burlington, VT USA; 21.Morton Arboretum, Lisle, IL USA |
推荐引用方式 GB/T 7714 | D&,39;Orangeville, Loic. Drought timing and local climate determine the sensitivity of eastern temperate forests to drought[J]. GLOBAL CHANGE BIOLOGY,2018,24(6):2339-2351. |
APA | D&,&39;Orangeville, Loic.(2018).Drought timing and local climate determine the sensitivity of eastern temperate forests to drought.GLOBAL CHANGE BIOLOGY,24(6),2339-2351. |
MLA | D&,et al."Drought timing and local climate determine the sensitivity of eastern temperate forests to drought".GLOBAL CHANGE BIOLOGY 24.6(2018):2339-2351. |
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