PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Energetic Impact of Reconstructed Debris Flow on the Intensity and Duration of Growth Disturbances of Tree Rings by Numerical Simulation and Remote Sensing
Version 1
: Received: 29 May 2023 / Approved: 31 May 2023 / Online: 31 May 2023 (07:29:40 CEST)
How to cite:
Wang, X.; Sun, J.; Zhang, Y.; Jiao, Q.; Qi, S.; Wang, R.; Liu, H.; Zhang, M. Energetic Impact of Reconstructed Debris Flow on the Intensity and Duration of Growth Disturbances of Tree Rings by Numerical Simulation and Remote Sensing. Preprints2023, 2023052181. https://doi.org/10.20944/preprints202305.2181.v1
Wang, X.; Sun, J.; Zhang, Y.; Jiao, Q.; Qi, S.; Wang, R.; Liu, H.; Zhang, M. Energetic Impact of Reconstructed Debris Flow on the Intensity and Duration of Growth Disturbances of Tree Rings by Numerical Simulation and Remote Sensing. Preprints 2023, 2023052181. https://doi.org/10.20944/preprints202305.2181.v1
Wang, X.; Sun, J.; Zhang, Y.; Jiao, Q.; Qi, S.; Wang, R.; Liu, H.; Zhang, M. Energetic Impact of Reconstructed Debris Flow on the Intensity and Duration of Growth Disturbances of Tree Rings by Numerical Simulation and Remote Sensing. Preprints2023, 2023052181. https://doi.org/10.20944/preprints202305.2181.v1
APA Style
Wang, X., Sun, J., Zhang, Y., Jiao, Q., Qi, S., Wang, R., Liu, H., & Zhang, M. (2023). Energetic Impact of Reconstructed Debris Flow on the Intensity and Duration of Growth Disturbances of Tree Rings by Numerical Simulation and Remote Sensing. Preprints. https://doi.org/10.20944/preprints202305.2181.v1
Chicago/Turabian Style
Wang, X., Haiyang Liu and Mengjie Zhang. 2023 "Energetic Impact of Reconstructed Debris Flow on the Intensity and Duration of Growth Disturbances of Tree Rings by Numerical Simulation and Remote Sensing" Preprints. https://doi.org/10.20944/preprints202305.2181.v1
Abstract
Rare study on quantitative relationship between energetic impact of debris flows on the intensity and duration of growth disturbances of tree rings was carried out, partly due to lack of feasible approaches and detailed field evidence. In this study, we firstly determine the age of a recent debris flow derived from historic landslide deposits at Qingyang mountain (QYM) on the northeastern Tibet plateau by dendrogeomorphic technique. We acquired the quantitative data of annual widths of tree rings in history and confirmed the influence of debris flow rather than other factors (e.g. climatic event and inset outbreaking) in disturbing the growth of tree rings in a specific year. Using the approach, we determined the age of the debris flow at QYM occurred in 1982, which was speculated to be triggered by high monthly precipitation of July in 1982. Subsequently, based on the boundaries of historic debris flow identified on remote sensing images before and after 1982 and depth-integrated continuum model, we reconstructed the process of 1982-debris flow and obtained the kinematic energy of debris flow impacting on the sampled trees. Based on the study, we observed that two growth disturbance patterns of tree rings influenced by the reconstructed 1982-debris flow were revealed including growth suppression and asymmetric growth. A raw logarithm relationship between duration (i.e. lasting time for the disturbed tree rings to recover the initial width) and intensity of growth disturbances (i.e. growth suppression ratio of disturbed tree rings) was obtained. We concluded that there is a negative exponential relationship between simulated kinematic energy of debris flow impacting on the disturbed trees and time to recover the initial width of corresponding tree rings.
Keywords
debris flow simulation; remote sensing; tree ring; Massflow; northeastern Tibet
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
,
