A global experiment suggests climate warming will not accelerate litter decomposition in streams but might reduce carbon sequestration

被引：262

作者：

Boyero, Luz ^{[1
,2
]}

Pearson, Richard G. ^{[2
]}

Gessner, Mark O. ^{[3
,4
]}

Barmuta, Leon A. ^{[5
]}

Ferreira, Veronica ^{[6
,7
]}

Graca, Manuel A. S. ^{[6
,7
]}

Dudgeon, David ^{[8
]}

Boulton, Andrew J. ^{[9
]}

Callisto, Marcos ^{[10
]}

Chauvet, Eric ^{[11
,12
]}

Helson, Julie E. ^{[13
]}

Bruder, Andreas ^{[3
,4
]}

Albarino, Ricardo J. ^{[14
]}

Yule, Catherine M. ^{[15
]}

Arunachalam, Muthukumarasamy ^{[16
]}

Davies, Judy N. ^{[9
]}

Figueroa, Ricardo ^{[17
]}

Flecker, Alexander S. ^{[18
]}

Rarnirez, Alonso ^{[19
]}

Death, Russell G. ^{[20
]}

Iwata, Tomoya ^{[21
]}

Mathooko, Jude M. ^{[22
]}

Mathuriau, Catherine ^{[23
]}

Goncalves, Jose F., Jr. ^{[10
]}

Moretti, Marcelo S. ^{[10
]}

Jinggut, Tajang ^{[15
]}

Lamothe, Sylvain ^{[11
,12
]}

M'Erimba, Charles ^{[22
]}

Ratnarajah, Lavenia ^{[5
]}

Schindler, Markus H. ^{[3
]}

Castela, Jose ^{[6
,7
]}

Buria, Leonardo M. ^{[14
]}

Cornejo, Aydee ^{[24
,25
]}

Villanueva, Veronica D. ^{[14
]}

West, Derek C. ^{[18
]}

机构：

[1] Donana Biol Stn CSIC, Wetland Ecol Dept, E-41092 Seville, Spain

[2] James Cook Univ, Sch Marine & Trop Biol, Townsville, Qld 4811, Australia

[3] Eawag Swiss Fed Inst Aquat Sci & Technol, Dept Aquat Ecol, CH-8600 Dubendorf, Switzerland

[4] Swiss Fed Inst Technol, Inst Integrat Biol, Zurich, Switzerland

[5] Univ Tasmania, Sch Zool, Inst Freshwater Grp, Hobart, Tas 7001, Australia

[6] Univ Coimbra, IMAR CMA, P-3001401 Coimbra, Portugal

[7] Univ Coimbra, Dept Life Sci, P-3001401 Coimbra, Portugal

[8] Univ Hong Kong, Sch Biol Sci, Hong Kong, Hong Kong, Peoples R China

[9] Univ New England, Sch Environm & Rural Sci, Armidale, NSW 2350, Australia

[10] Univ Fed Minas Gerais, Inst Ciencias Biol, Lab Ecol Bentos, BR-30161970 Belo Horizonte, MG, Brazil

[11] Univ Toulouse, EcoLab, UPS, INPT, F-31055 Toulouse, France

[12] CNRS, EcoLab, F-31055 Toulouse, France

[13] Univ Toronto, Dept Biol Sci, Surface & Groundwater Ecol Res Grp, Scarborough, ON M1C 1A4, Canada

[14] Univ Nacl Comahue, CONICET, Lab Limnol, INIBIOMA, San Carlos De Bariloche, Rio Negro, Argentina

[15] Monash Univ, Sch Sci, Selangor 46150, Malaysia

[16] Manonmainam Sundaranar Univ, Sri Paramakalyani Ctr Environm Sci, Alwarkuruchi, Tamil Nadu, India

[17] Univ Concepcion, Environm Sci Ctr EULA Chile, Aquat Syst Res Unit, Concepcion, Chile

[18] Cornell Univ, Dept Ecol & Evolutionary Biol, Ithaca, NY 14853 USA

[19] Univ Puerto Rico, Inst Trop Ecosyst Studies, San Juan, PR 00936 USA

[20] Inst Nat Resources, Palmerston North, New Zealand

[21] Univ Yamanashi, Fac Engn, Kofu, Yamanashi 4008511, Japan

[22] Egerton Univ, Dept Biol Sci, Egerton, Kenya

[23] Ctr Invest Ecosistemas, Morelia, Michoacan, Mexico

[24] Inst Conmemorat Gorgas Estudios Salud, Secc Entomol, Panama City 081602593, Panama

[25] Univ Panama, Programa Centroamer Maestria Entomol, Panama City, Panama

来源：

ECOLOGY LETTERS | 2011年 / 14卷 / 03期

关键词：

Carbon cycle; climate change; detritivores; global analysis; latitudinal gradient; litter decomposition; microbial decomposers; streams; temperature; TROPICAL STREAMS; BREAKDOWN; TEMPERATURE; ENVIRONMENTS; SHREDDERS; DYNAMICS; PATTERNS; QUALITY; STORAGE; FLUXES;

D O I：

10.1111/j.1461-0248.2010.01578.x

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

P>The decomposition of plant litter is one of the most important ecosystem processes in the biosphere and is particularly sensitive to climate warming. Aquatic ecosystems are well suited to studying warming effects on decomposition because the otherwise confounding influence of moisture is constant. By using a latitudinal temperature gradient in an unprecedented global experiment in streams, we found that climate warming will likely hasten microbial litter decomposition and produce an equivalent decline in detritivore-mediated decomposition rates. As a result, overall decomposition rates should remain unchanged. Nevertheless, the process would be profoundly altered, because the shift in importance from detritivores to microbes in warm climates would likely increase CO2 production and decrease the generation and sequestration of recalcitrant organic particles. In view of recent estimates showing that inland waters are a significant component of the global carbon cycle, this implies consequences for global biogeochemistry and a possible positive climate feedback.

引用

页码：289 / 294

页数：6

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