Cross-biome synthesis of source versus sink limits to tree growth

被引：133

作者：

Cabon, Antoine ^{[1
]}

Kannenberg, Steven A. ^{[1
]}

Arain, Altaf ^{[2
,3
]}

Babst, Flurin ^{[4
,5
]}

Baldocchi, Dennis ^{[6
]}

Belmecheri, Soumaya ^{[5
]}

Delpierre, Nicolas ^{[7
,8
]}

Guerrieri, Rossella ^{[9
]}

Maxwell, Justin T. ^{[10
]}

McKenzie, Shawn ^{[2
,3
]}

Meinzer, Frederick C. ^{[11
]}

Moore, David J. P. ^{[4
]}

Pappas, Christoforos ^{[12
,13
]}

Rocha, Adrian, V ^{[14
]}

Szejner, Paul ^{[15
]}

Ueyama, Masahito ^{[16
]}

Ulrich, Danielle ^{[17
]}

Vincke, Caroline ^{[18
]}

Voelker, Steven L. ^{[19
]}

Wei, Jingshu ^{[20
]}

Woodruff, David ^{[11
]}

Anderegg, William R. L. ^{[1
]}

机构：

[1] Univ Utah, Sch Biol Sci, Salt Lake City, UT 84112 USA

[2] McMaster Univ, McMaster Ctr Climate Change, Hamilton, ON L8S 4K1, Canada

[3] McMaster Univ, Sch Earth Environm & Soc, Hamilton, ON L8S 4K1, Canada

[4] Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ USA

[5] Univ Arizona, Lab Tree Ring Res, Tucson, AZ USA

[6] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA

[7] Univ Paris Saclay, Ecol Systemat & Evolut, AgroParisTech, CNRS, F-91405 Orsay, France

[8] Inst Univ France, F-75231 Paris 05, France

[9] Univ Bologna, Alma Mater Studiorum, DISTAL, Bologna, Italy

[10] Indiana Univ, Dept Geog, Bloomington, IN 47405 USA

[11] USDA Forest Serv, Pacific Northwest Res Stn, Corvallis, OR USA

[12] Univ Quebec Montreal, Ctr Etud Foret, CP 8888,Succursale Ctr Ville, Montreal, PQ H3C 3P8, Canada

[13] Univ Quebec, Dept Sci & Technol, Teluq, Bur 1105, Montreal, PQ H2S 3L5, Canada

[14] Univ Notre Dame, Dept Biol Sci, Notre Dame, IN 46556 USA

[15] Univ Nacl Autonoma Mexico, Geol Inst, Coyoacan, Cdmx, Mexico

[16] Osaka Prefecture Univ, Grad Sch Life & Environm Sci, Naka Ku, 1-1 Gakuen Cho, Sakai, Osaka 5998531, Japan

[17] Montana State Univ, Dept Ecol, Bozeman, MT 59717 USA

[18] Catholic Univ Louvain, Earth & Life Inst, Louvain La Neuve, Belgium

[19] Michigan Technol Univ, Coll Forest Resources & Environm Sci, Houghton, MI 49931 USA

[20] Polish Acad Sci, W Szafer Inst Bot, Dept Ecol, PL-31512 Krakow, Poland

来源：

SCIENCE | 2022年 / 376卷 / 6594期

基金：

美国国家科学基金会; 美国食品与农业研究所;

关键词：

NET ECOSYSTEM PRODUCTIVITY; INTERANNUAL VARIABILITY; CARBON FLUXES; FOREST GROWTH; CLIMATE; PHOTOSYNTHESIS; PHENOLOGY; RESPONSES; STORAGE; HEIGHT;

D O I：

10.1126/science.abm4875

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Uncertainties surrounding tree carbon allocation to growth are a major limitation to projections of forest carbon sequestration and response to climate change. The prevalence and extent to which carbon assimilation (source) or cambial activity (sink) mediate wood production are fundamentally important and remain elusive. We quantified source-sink relations across biomes by combining eddy-covariance gross primary production with extensive on-site and regional tree ring observations. We found widespread temporal decoupling between carbon assimilation and tree growth, underpinned by contrasting climatic sensitivities of these two processes. Substantial differences in assimilation-growth decoupling between angiosperms and gymnosperms were determined, as well as stronger decoupling with canopy closure, aridity, and decreasing temperatures. Our results reveal pervasive sink control over tree growth that is likely to be increasingly prominent under global climate change.

引用

页码：758 / +

页数：36

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