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Title: Multiple drivers of seasonal change in PRI: Implications for photosynthesis 1. Leaf level

Authors:
ORCiD logo; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1396878
Grant/Contract Number:
FG-02-00ER45827; FG03-00ER62996
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Remote Sensing of Environment
Additional Journal Information:
Journal Volume: 191; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-04 15:38:50; Journal ID: ISSN 0034-4257
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

Citation Formats

Gitelson, Anatoly A., Gamon, John A., and Solovchenko, Alexei. Multiple drivers of seasonal change in PRI: Implications for photosynthesis 1. Leaf level. United States: N. p., 2017. Web. doi:10.1016/j.rse.2016.12.014.
Gitelson, Anatoly A., Gamon, John A., & Solovchenko, Alexei. Multiple drivers of seasonal change in PRI: Implications for photosynthesis 1. Leaf level. United States. doi:10.1016/j.rse.2016.12.014.
Gitelson, Anatoly A., Gamon, John A., and Solovchenko, Alexei. Wed . "Multiple drivers of seasonal change in PRI: Implications for photosynthesis 1. Leaf level". United States. doi:10.1016/j.rse.2016.12.014.
@article{osti_1396878,
title = {Multiple drivers of seasonal change in PRI: Implications for photosynthesis 1. Leaf level},
author = {Gitelson, Anatoly A. and Gamon, John A. and Solovchenko, Alexei},
abstractNote = {},
doi = {10.1016/j.rse.2016.12.014},
journal = {Remote Sensing of Environment},
number = C,
volume = 191,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.rse.2016.12.014

Citation Metrics:
Cited by: 6works
Citation information provided by
Web of Science

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  • Cited by 4
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  • Cited by 4
  • Species composition of temperate forests vary with successional age and seems likely to change in response to significant global climate change. Because photosynthesis rates in co-occurring tree species can differ in their sensitivity to environmental conditions, these changes in species composition are likely to alter the carbon dynamics of temperate forests. To help improve their understanding of such atmosphere-biosphere interactions, the authors explored changes in leaf-level photosynthesis in a 60--70 yr old temperate mixed-deciduous forest in Petersham, Massachusetts (USA). Diurnally and seasonally varying environmental conditions differentially influenced in situ leaf-level photosynthesis rates in the canopies of four mature temperate deciduousmore » tree species: red oak (Quercus rubra), red maple (Acer rubrum), white birch (Betula papyrifera), and yellow birch (Betula alleghaniensis). The authors measured in situ photosynthesis at two heights within the canopies through a diurnal time course on 7 d over two growing seasons. They simultaneously measured a suite of environmental conditions surrounding the leaf at the time of each measurement. The authors used path analysis to examine the influence of environmental factors on in situ photosynthesis in the tree canopies.« less
  • Researchers agree that climate change factors such as rising atmospheric [CO{sub 2}] and warming will likely interact to modify ecosystem properties and processes. However, the response of the microbial communities that regulate ecosystem processes is less predictable. We measured the direct and interactive effects of climatic change on soil fungal and bacterial communities (abundance and composition) in a multifactor climate change experiment that exposed a constructed old-field ecosystem to different atmospheric CO{sub 2} concentration (ambient, +300 ppm), temperature (ambient, +3 C), and precipitation (wet and dry) might interact to alter soil bacterial and fungal abundance and community structure in anmore » old-field ecosystem. We found that (i) fungal abundance increased in warmed treatments; (ii) bacterial abundance increased in warmed plots with elevated atmospheric [CO{sub 2}] but decreased in warmed plots under ambient atmospheric [CO{sub 2}]; (iii) the phylogenetic distribution of bacterial and fungal clones and their relative abundance varied among treatments, as indicated by changes in 16S rRNA and 28S rRNA genes; (iv) changes in precipitation altered the relative abundance of Proteobacteria and Acidobacteria, where Acidobacteria decreased with a concomitant increase in the Proteobacteria in wet relative to dry treatments; and (v) changes in precipitation altered fungal community composition, primarily through lineage specific changes within a recently discovered group known as soil clone group I. Taken together, our results indicate that climate change drivers and their interactions may cause changes in bacterial and fungal overall abundance; however, changes in precipitation tended to have a much greater effect on the community composition. These results illustrate the potential for complex community changes in terrestrial ecosystems under climate change scenarios that alter multiple factors simultaneously.« less