探索大型林木动态水文驱动因素的高分辨率年际框架

IF 1.7 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES
Borbála Hortobágyi, Stéphane Petit, Baptiste Marteau, Gabriel Melun, Hervé Piégay
{"title":"探索大型林木动态水文驱动因素的高分辨率年际框架","authors":"Borbála Hortobágyi, Stéphane Petit, Baptiste Marteau, Gabriel Melun, Hervé Piégay","doi":"10.1002/rra.4242","DOIUrl":null,"url":null,"abstract":"Rivers with alluvial bars store more wood than those without, supplied through channel shifting. However, wood dynamics (arrival or new deposits, departure or entrainment, and stable or immobile pieces) can vary substantially over time in response to critical hydrological drivers that are largely unknown. To evaluate them, we studied the dynamics of large wood pieces and logjams along a 12-km reach of the lower Allier River using six series of aerial images of variable resolution acquired between 2009 and 2020, during which maximum river discharge fluctuated around the dominant flood discharge (Q<sub>1.5</sub>) that is potentially the bankfull discharge along this well-preserved not incised reach. Individual wood departure was best correlated with water levels exceeding dominant flood discharge. The duration of the highest magnitude flood was best correlated with wood depositions, with shorter floods resulting in a higher number of deposits. Finally, most of the wood remained stable when river discharge did not exceed 60% of Q<sub>1.5</sub> over a long period of time. Changes in inter-annual wood budget (reach-scale) depend on the duration over which discharge exceeded 60% of Q<sub>1.5</sub>. Hydrological conditions driving jam build-up and removal were similar to those controlling individual wood piece dynamics. The results suggest that specific hydrological conditions influence the dynamics of large wood and log jams in the Allier River. Understanding the dynamics of large wood and its impact on river morphology is fundamental for successful river management and habitat restoration initiatives.","PeriodicalId":21513,"journal":{"name":"River Research and Applications","volume":"214 1","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A high-resolution inter-annual framework for exploring hydrological drivers of large wood dynamics\",\"authors\":\"Borbála Hortobágyi, Stéphane Petit, Baptiste Marteau, Gabriel Melun, Hervé Piégay\",\"doi\":\"10.1002/rra.4242\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Rivers with alluvial bars store more wood than those without, supplied through channel shifting. However, wood dynamics (arrival or new deposits, departure or entrainment, and stable or immobile pieces) can vary substantially over time in response to critical hydrological drivers that are largely unknown. To evaluate them, we studied the dynamics of large wood pieces and logjams along a 12-km reach of the lower Allier River using six series of aerial images of variable resolution acquired between 2009 and 2020, during which maximum river discharge fluctuated around the dominant flood discharge (Q<sub>1.5</sub>) that is potentially the bankfull discharge along this well-preserved not incised reach. Individual wood departure was best correlated with water levels exceeding dominant flood discharge. The duration of the highest magnitude flood was best correlated with wood depositions, with shorter floods resulting in a higher number of deposits. Finally, most of the wood remained stable when river discharge did not exceed 60% of Q<sub>1.5</sub> over a long period of time. Changes in inter-annual wood budget (reach-scale) depend on the duration over which discharge exceeded 60% of Q<sub>1.5</sub>. Hydrological conditions driving jam build-up and removal were similar to those controlling individual wood piece dynamics. The results suggest that specific hydrological conditions influence the dynamics of large wood and log jams in the Allier River. Understanding the dynamics of large wood and its impact on river morphology is fundamental for successful river management and habitat restoration initiatives.\",\"PeriodicalId\":21513,\"journal\":{\"name\":\"River Research and Applications\",\"volume\":\"214 1\",\"pages\":\"\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-01-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"River Research and Applications\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1002/rra.4242\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"River Research and Applications","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1002/rra.4242","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

摘要

有冲积栅栏的河流比没有冲积栅栏的河流储存更多的木材,这些木材是通过河道移动提供的。然而,木材的动态(到达或新的沉积、离开或夹带、稳定或不移动的木块)会随着时间的推移而发生很大的变化,以应对关键的水文驱动因素,而这些驱动因素在很大程度上是未知的。为了评估这些因素,我们使用 2009 年至 2020 年期间获取的六组不同分辨率的航空图像,研究了阿利埃河下游 12 公里河段的大木头和木桩的动态。单个木头的离开与水位超过主要洪水排泄量最相关。最高量级洪水的持续时间与木材沉积的相关性最好,洪水持续时间越短,沉积数量越多。最后,当河流排水量长期不超过 Q1.5 的 60% 时,大部分木材保持稳定。年际木材预算(河段尺度)的变化取决于排水量超过 Q1.5 的 60% 的持续时间。驱动木块堆积和清除的水文条件与控制单个木块动态的水文条件相似。结果表明,特定的水文条件会影响阿利埃河大木头和原木木块的动态变化。了解大木头的动态及其对河流形态的影响是成功进行河流管理和生境恢复的基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A high-resolution inter-annual framework for exploring hydrological drivers of large wood dynamics
Rivers with alluvial bars store more wood than those without, supplied through channel shifting. However, wood dynamics (arrival or new deposits, departure or entrainment, and stable or immobile pieces) can vary substantially over time in response to critical hydrological drivers that are largely unknown. To evaluate them, we studied the dynamics of large wood pieces and logjams along a 12-km reach of the lower Allier River using six series of aerial images of variable resolution acquired between 2009 and 2020, during which maximum river discharge fluctuated around the dominant flood discharge (Q1.5) that is potentially the bankfull discharge along this well-preserved not incised reach. Individual wood departure was best correlated with water levels exceeding dominant flood discharge. The duration of the highest magnitude flood was best correlated with wood depositions, with shorter floods resulting in a higher number of deposits. Finally, most of the wood remained stable when river discharge did not exceed 60% of Q1.5 over a long period of time. Changes in inter-annual wood budget (reach-scale) depend on the duration over which discharge exceeded 60% of Q1.5. Hydrological conditions driving jam build-up and removal were similar to those controlling individual wood piece dynamics. The results suggest that specific hydrological conditions influence the dynamics of large wood and log jams in the Allier River. Understanding the dynamics of large wood and its impact on river morphology is fundamental for successful river management and habitat restoration initiatives.
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
River Research and Applications
River Research and Applications 环境科学-环境科学
CiteScore
4.60
自引率
9.10%
发文量
158
审稿时长
6 months
期刊介绍: River Research and Applications , previously published as Regulated Rivers: Research and Management (1987-2001), is an international journal dedicated to the promotion of basic and applied scientific research on rivers. The journal publishes original scientific and technical papers on biological, ecological, geomorphological, hydrological, engineering and geographical aspects related to rivers in both the developed and developing world. Papers showing how basic studies and new science can be of use in applied problems associated with river management, regulation and restoration are encouraged as is interdisciplinary research concerned directly or indirectly with river management problems.
×
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:481959085
Book学术官方微信