当树木从野火中恢复时,生理活动高峰的延迟可能会减少资源获取

IF 2.9 3区 环境科学与生态学 Q2 ECOLOGY
Ecosphere Pub Date : 2025-07-21 DOI:10.1002/ecs2.70325
Kelsey Bryant, Laurel Lynch, Crystal Kolden, Jeffrey Stenzel, Chad Hanson, Christopher Still, Justin Mathias, Brandon Light, Cooper Moon, Tara Hudiburg
{"title":"当树木从野火中恢复时,生理活动高峰的延迟可能会减少资源获取","authors":"Kelsey Bryant,&nbsp;Laurel Lynch,&nbsp;Crystal Kolden,&nbsp;Jeffrey Stenzel,&nbsp;Chad Hanson,&nbsp;Christopher Still,&nbsp;Justin Mathias,&nbsp;Brandon Light,&nbsp;Cooper Moon,&nbsp;Tara Hudiburg","doi":"10.1002/ecs2.70325","DOIUrl":null,"url":null,"abstract":"<p>Few studies have investigated how mature trees recover physiologically from wildfire damage, and none have comprehensively linked tree hydraulics with belowground function. Uncovering mechanistic links between rates of above- and belowground recovery is necessary for improving predictions of forest resilience and carbon dynamics following wildfire. We coupled continuous measurements of tree water flow and soil CO<sub>2</sub> efflux with detailed physiological measurements of above- and belowground function following a mixed-severity wildfire. We found that mature <i>Pinus ponderosa</i> trees with up to 85% canopy and stem damage resumed physiological functioning by the second growing season post-fire. However, these trees also exhibited delayed peak water uptake (relative to less-burned trees) that coincided with summer heat and drought. Our results suggest fire damage may prevent the critical timing in which peak physiological function overlaps with optimal growing conditions (e.g., moisture and nutrient availability). As a result, we suggest the degree of root and microbial damage should be assessed along with observed aboveground damage to more effectively predict tree recovery potential. While significantly damaged trees resumed typical hydraulic function within two years, observed delays in peak water uptake could require higher water and nutrient use efficiency to maintain carbon sequestration rates.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":"16 7","pages":""},"PeriodicalIF":2.9000,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.70325","citationCount":"0","resultStr":"{\"title\":\"Delays in peak physiological activity may reduce resource acquisition as trees recover from wildfire\",\"authors\":\"Kelsey Bryant,&nbsp;Laurel Lynch,&nbsp;Crystal Kolden,&nbsp;Jeffrey Stenzel,&nbsp;Chad Hanson,&nbsp;Christopher Still,&nbsp;Justin Mathias,&nbsp;Brandon Light,&nbsp;Cooper Moon,&nbsp;Tara Hudiburg\",\"doi\":\"10.1002/ecs2.70325\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Few studies have investigated how mature trees recover physiologically from wildfire damage, and none have comprehensively linked tree hydraulics with belowground function. Uncovering mechanistic links between rates of above- and belowground recovery is necessary for improving predictions of forest resilience and carbon dynamics following wildfire. We coupled continuous measurements of tree water flow and soil CO<sub>2</sub> efflux with detailed physiological measurements of above- and belowground function following a mixed-severity wildfire. We found that mature <i>Pinus ponderosa</i> trees with up to 85% canopy and stem damage resumed physiological functioning by the second growing season post-fire. However, these trees also exhibited delayed peak water uptake (relative to less-burned trees) that coincided with summer heat and drought. Our results suggest fire damage may prevent the critical timing in which peak physiological function overlaps with optimal growing conditions (e.g., moisture and nutrient availability). As a result, we suggest the degree of root and microbial damage should be assessed along with observed aboveground damage to more effectively predict tree recovery potential. While significantly damaged trees resumed typical hydraulic function within two years, observed delays in peak water uptake could require higher water and nutrient use efficiency to maintain carbon sequestration rates.</p>\",\"PeriodicalId\":48930,\"journal\":{\"name\":\"Ecosphere\",\"volume\":\"16 7\",\"pages\":\"\"},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2025-07-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.70325\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ecosphere\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/ecs2.70325\",\"RegionNum\":3,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ECOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ecosphere","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ecs2.70325","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 0

摘要

很少有研究调查成熟树木如何从野火破坏中恢复生理,也没有研究全面地将树木水力学与地下功能联系起来。揭示地上和地下恢复速率之间的机制联系对于改进野火后森林恢复力和碳动态的预测是必要的。在混合严重程度的野火之后,我们将树木水流和土壤二氧化碳流出的连续测量与地上和地下功能的详细生理测量相结合。研究发现,在火灾发生后的第二个生长季,树冠和茎部损伤高达85%的黄松成熟树恢复了生理功能。然而,这些树木也表现出延迟的峰值水分吸收(相对于较少燃烧的树木),这与夏季炎热和干旱相吻合。我们的研究结果表明,火灾损害可能会阻止生理功能峰值与最佳生长条件(例如水分和养分有效性)重叠的关键时间。因此,我们建议将根系和微生物损害程度与观察到的地上损害一起评估,以更有效地预测树木的恢复潜力。虽然严重受损的树木在两年内恢复了典型的水力功能,但观察到的峰值吸水延迟可能需要更高的水和养分利用效率来保持碳固存率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Delays in peak physiological activity may reduce resource acquisition as trees recover from wildfire

Delays in peak physiological activity may reduce resource acquisition as trees recover from wildfire

Few studies have investigated how mature trees recover physiologically from wildfire damage, and none have comprehensively linked tree hydraulics with belowground function. Uncovering mechanistic links between rates of above- and belowground recovery is necessary for improving predictions of forest resilience and carbon dynamics following wildfire. We coupled continuous measurements of tree water flow and soil CO2 efflux with detailed physiological measurements of above- and belowground function following a mixed-severity wildfire. We found that mature Pinus ponderosa trees with up to 85% canopy and stem damage resumed physiological functioning by the second growing season post-fire. However, these trees also exhibited delayed peak water uptake (relative to less-burned trees) that coincided with summer heat and drought. Our results suggest fire damage may prevent the critical timing in which peak physiological function overlaps with optimal growing conditions (e.g., moisture and nutrient availability). As a result, we suggest the degree of root and microbial damage should be assessed along with observed aboveground damage to more effectively predict tree recovery potential. While significantly damaged trees resumed typical hydraulic function within two years, observed delays in peak water uptake could require higher water and nutrient use efficiency to maintain carbon sequestration rates.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Ecosphere
Ecosphere ECOLOGY-
CiteScore
4.70
自引率
3.70%
发文量
378
审稿时长
15 weeks
期刊介绍: The scope of Ecosphere is as broad as the science of ecology itself. The journal welcomes submissions from all sub-disciplines of ecological science, as well as interdisciplinary studies relating to ecology. The journal''s goal is to provide a rapid-publication, online-only, open-access alternative to ESA''s other journals, while maintaining the rigorous standards of peer review for which ESA publications are renowned.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信