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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 02869naa a2200397 4500 | |
| 001 | oai:DiVA.org:oru-4236 | |
| 003 | SwePub | |
| 008 | 071207s2001 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-42362 URI |
| 024 | 7 | a https://doi.org/10.1038/350810582 DOI |
| 040 | a (SwePub)oru | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Högberg, Peter4 aut |
| 245 | 1 0 | a Large-scale forest girdling shows that current photosynthesis drives soil respiration |
| 264 | 1 | b Springer Science and Business Media LLC,c 2001 |
| 338 | a print2 rdacarrier | |
| 520 | a The respiratory activities of plant roots, of their mycorrhizal fungi and of the free-living microbial heterotrophs (decomposers) in soils are significant components of the global carbon balance, but their relative contributions remain uncertain. To separate mycorrhizal root respiration from heterotrophic respiration in a boreal pine forest, we conducted a large-scale tree-girdling experiment, comprising 9 plots each containing about 120 trees. Tree-girdling involves stripping the stem bark to the depth of the current xylem at breast height terminating the supply of current photosynthates to roots and their mycorrhizal fungi without physically disturbing the delicate root-microbe-soil system. Here we report that girdling reduced soil respiration within 1-2 months by about 54% relative to respiration on ungirdled control plots, and that decreases of up to 37% were detected within 5 days. These values clearly show that the flux of current assimilates to roots is a key driver of soil respiration; they are conservative estimates of root respiration, however, because girdling increased the use of starch reserves in the roots. Our results indicate that models of soil respiration should incorporate measures of photosynthesis and of seasonal patterns of photosynthate allocation to roots. | |
| 650 | 7 | a NATURVETENSKAPx Biologi0 (SwePub)1062 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Biological Sciences0 (SwePub)1062 hsv//eng |
| 653 | a Biology | |
| 653 | a Biologi | |
| 700 | 1 | a Nordgren, Anders4 aut |
| 700 | 1 | a Buchmann, Nina4 aut |
| 700 | 1 | a Taylor, Andrew F. S.4 aut |
| 700 | 1 | a Ekblad, Alfu Örebro universitet,Institutionen för naturvetenskap4 aut0 (Swepub:oru)afed |
| 700 | 1 | a Högberg, Mona N.4 aut |
| 700 | 1 | a Nyberg, Gert4 aut |
| 700 | 1 | a Ottosson-Löfvenius, Mikaell4 aut |
| 700 | 1 | a Read, David J.4 aut |
| 710 | 2 | a Örebro universitetb Institutionen för naturvetenskap4 org |
| 773 | 0 | t Natured : Springer Science and Business Media LLCg 411:6839, s. 789-792q 411:6839<789-792x 0028-0836x 1476-4687 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-4236 |
| 856 | 4 8 | u https://doi.org/10.1038/35081058 |
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