دورية أكاديمية
Linking physiological drought resistance traits to growth and mortality of three northeastern tree species.
| العنوان: | Linking physiological drought resistance traits to growth and mortality of three northeastern tree species. |
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| المؤلفون: | Barry AM; University of Maine School of Forest Resources, 5755 Nutting Hall, Orono, ME 04469, United States., Bein B; University of Maine School of Biology and Ecology, Hitchner Hall, 7 Portage Road, Orono, ME 04469, United States., Zhang YJ; University of Maine School of Biology and Ecology, Hitchner Hall, 7 Portage Road, Orono, ME 04469, United States.; University of Maine Climate Change Institute, 16-40 Grove Street Ext, Orono, ME 04469, United States., Wason JW; University of Maine School of Forest Resources, 5755 Nutting Hall, Orono, ME 04469, United States. |
| المصدر: | Tree physiology [Tree Physiol] 2024 Sep 03; Vol. 44 (9). |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: Canada NLM ID: 100955338 Publication Model: Print Cited Medium: Internet ISSN: 1758-4469 (Electronic) Linking ISSN: 0829318X NLM ISO Abbreviation: Tree Physiol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Oxford : Oxford University Press Original Publication: Victoria, [B.C.] : Heron Pub., c1986- |
| مواضيع طبية MeSH: | Droughts* , Quercus*/growth & development , Quercus*/physiology , Picea*/growth & development , Picea*/physiology , Betula*/growth & development , Betula*/physiology , Trees*/growth & development , Trees*/physiology , Climate Change*, Seedlings/growth & development ; Seedlings/physiology ; Photosynthesis/physiology ; New England ; Water/metabolism ; Drought Resistance |
| مستخلص: | Climate change is raising concerns about how forests will respond to extreme droughts, heat waves and their co-occurrence. In this greenhouse study, we tested how carbon and water relations relate to seedling growth and mortality of northeastern US trees during and after extreme drought, warming, and combined drought and warming. We compared the response of our focal species red spruce (Picea rubens Sarg.) with a common associate (paper birch, Betula papyrifera Marsh.) and a species expected to increase abundance in this region with climate change (northern red oak, Quercus rubra L.). We tracked growth and mortality, photosynthesis and water use of 216 seedlings of these species through a treatment and a recovery year. Each red spruce seedling was planted in containers either alone or with another seedling to simulate potential competition, and the seedlings were exposed to combinations of drought (irrigated, 15-d 'short' or 30-d 'long') and temperature (ambient or 16 days at +3.5 °C daily maximum) treatments. We found dominant effects of the drought reducing photosynthesis, midday water potential, and growth of spruce and birch, but that oak showed considerable resistance to drought stress. The effects of planting seedlings together were moderate and likely due to competition for limited water. Despite high temperatures reducing photosynthesis for all species, the warming imposed in this study minorly impacted growth only for oak in the recovery year. Overall, we found that the diverse water-use strategies employed by the species in our study related to their growth and recovery following drought stress. This study provides physiological evidence to support the prediction that native species to this region like red spruce and paper birch are susceptible to future climate extremes that may favor other species like northern red oak, leading to potential impacts on tree community dynamics under climate change. (© The Author(s) 2024. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permission@oup.com.) |
| معلومات مُعتمدة: | ME0-42121 McIntire Stennis Grant; Maine Agricultural and Forest Experiment Station; University of Maine School of Forest Resources |
| فهرسة مساهمة: | Keywords: Picea rubens; Quercus rubra; drought stress; heat stress; leaf water potential; species interactions |
| المشرفين على المادة: | 059QF0KO0R (Water) |
| تواريخ الأحداث: | Date Created: 20240729 Date Completed: 20240904 Latest Revision: 20240904 |
| رمز التحديث: | 20240904 |
| DOI: | 10.1093/treephys/tpae095 |
| PMID: | 39073894 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1758-4469 |
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| DOI: | 10.1093/treephys/tpae095 |