Journal
ECOLOGICAL INDICATORS
Volume 58, Issue -, Pages 332-334Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ecolind.2015.05.034
Keywords
Soil moisture; Shade tolerance index; Forest inventories; Forest succession; Drought
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Funding
- Simons Q1 Foundation [283770]
- Washington State University New Faculty SEED grant
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Increasing occurrence of droughts is a major environmental concern, however its consequences on forested ecosystems are not fully understood at the landscape level. Here we link the forest shade tolerance index to soil moisture in the North America using the U.S. and Quebec forest inventories. We report a significant decrease of shade tolerance index along the hydric-mesic-xeric soil transition in most of the area considered except three subtropical/tropical ecoregions of the Southeastern U.S. We conclude that droughts may alter forest succession, and in particular decrease the role of forest gap dynamics and dominance of the shade-tolerant species in mature forests. (C) 2015 Elsevier Ltd. All rights reserved.
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