Sökning: onr:"swepub:oai:DiVA.org:umu-37319" > Impacts of experime...
Fältnamn | Indikatorer | Metadata |
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000 | 03411naa a2200481 4500 | |
001 | oai:DiVA.org:umu-37319 | |
003 | SwePub | |
008 | 101027s2010 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-373192 URI |
024 | 7 | a https://doi.org/10.1111/j.1365-2435.2009.01683.x2 DOI |
040 | a (SwePub)umu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Metcalfe, Daniel B.4 aut |
245 | 1 0 | a Impacts of experimentally imposed drought on leaf respiration and morphology in an Amazon rain forest |
264 | c 2010-01-28 | |
264 | 1 | b Wiley,c 2010 |
338 | a print2 rdacarrier | |
520 | a P>1. The Amazon region may experience increasing moisture limitation over this century. Leaf dark respiration (R) is a key component of the Amazon rain forest carbon (C) cycle, but relatively little is known about its sensitivity to drought. 2. Here, we present measurements of R standardized to 25 degrees C and leaf morphology from different canopy heights over 5 years at a rain forest subject to a large-scale through-fall reduction (TFR) experiment, and nearby, unmodified Control forest, at the Caxiuana reserve in the eastern Amazon. 3. In all five post-treatment measurement campaigns, mean R at 25 degrees C was elevated in the TFR forest compared to the Control forest experiencing normal rainfall. After 5 years of the TFR treatment, R per unit leaf area and mass had increased by 65% and 42%, respectively, relative to pre-treatment means. In contrast, leaf area index (L) in the TFR forest was consistently lower than the Control, falling by 23% compared to the pre-treatment mean, largely because of a decline in specific leaf area (S). 4. The consistent and significant effects of the TFR treatment on R, L and S suggest that severe drought events in the Amazon, of the kind that may occur more frequently in future, could cause a substantial increase in canopy carbon dioxide emissions from this ecosystem to the atmosphere. | |
650 | 7 | a NATURVETENSKAPx Biologix Botanik0 (SwePub)106072 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Biological Sciencesx Botany0 (SwePub)106072 hsv//eng |
700 | 1 | a Lobo-do-Vale, Raquel4 aut |
700 | 1 | a Chaves, Manuela M.4 aut |
700 | 1 | a Maroco, Joao P.4 aut |
700 | 1 | a Aragao, Luiz E. O. C.4 aut |
700 | 1 | a Malhi, Yadvinder4 aut |
700 | 1 | a Da Costa, Antonio L.4 aut |
700 | 1 | a Braga, Alan P.4 aut |
700 | 1 | a Goncalves, Paulo L.4 aut |
700 | 1 | a De Athaydes, Joao4 aut |
700 | 1 | a Da Costa, Mauricio4 aut |
700 | 1 | a Almeida, Samuel S.4 aut |
700 | 1 | a Campbell, Catherine,d 1976-u Umeå universitet,Umeå Plant Science Centre (UPSC)4 aut0 (Swepub:umu)caca0029 |
700 | 1 | a Hurry, Vaughan,d 1960-u Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)4 aut0 (Swepub:umu)vahu0001 |
700 | 1 | a Williams, Mathew4 aut |
700 | 1 | a Meir, Patrick4 aut |
710 | 2 | a Umeå universitetb Umeå Plant Science Centre (UPSC)4 org |
773 | 0 | t Functional Ecologyd : Wileyg 24:3, s. 524-533q 24:3<524-533x 0269-8463x 1365-2435 |
856 | 4 | u http://repositorio.ispa.pt///bitstream/10400.12/1710/1/FE%2024%20524%E2%80%93533.pdf |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-37319 |
856 | 4 8 | u https://doi.org/10.1111/j.1365-2435.2009.01683.x |
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