Article (Scientific journals)
Intraseasonal interactive effects of successive typhoons characterize canopy damage of forests in Taiwan: A remote sensing-based assessment
Peereman, Jonathan; Aaron Hogan, J.; Lin, Teng-Chiu
2022In Forest Ecology and Management, 521, p. 120430
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Keywords :
Canopy disturbance; Residual effects; Subtropical forests; Successive tropical cyclones; Taiwan; Vegetation index; Infrared indices; Interactive effect; Normalized differences; Successive tropical cyclone; Tropical cyclone; Forestry; Nature and Landscape Conservation; Management, Monitoring, Policy and Law
Abstract :
[en] Wind gusts and rainfall from tropical cyclones can heavily damage forest canopies, leading to abrupt changes in forest structure and tree demography. Although many studies have shown that successive tropical cyclones can interact with each other through residual effects, the role of past disturbances is unclear because they may lead to damage amplification of the second cyclone because of weakened forest structure, or damage reduction of the second cyclone because of previous damage to susceptible trees. We investigated the interaction between consecutive cyclones between 2001 and 2017 for five well-conserved forests in Taiwan, which experiences an average of 1.75 typhoons annually. Using MODIS imagery, we computed the typhoon-induced change of a canopy vegetation index, the Normalized Difference Infrared Index (NDII). The effects of successive typhoons were assessed separately for typhoons occurring within a single year (annual analysis) and within two consecutive years (biennial analysis). We used mixed effect models of reductions in NDII, a measurement of canopy damage, in relation to target and past typhoon characteristics and damage magnitude. NDII reduction induced by preceding typhoons was slightly more important and statistically significant in explaining the variation in NDII reduction associated with the target typhoon in the annual than in the biennial analysis, where the effect was non-significant. Canopy damage did not always decrease across typhoons occurring within the same season, however, for most successive typhoons in the biennial analysis, the second cyclone caused equal or less canopy damage (16 out of 21 typhoon pairs). These results support the idea that residual interactive effects of previous typhoons decrease quickly over time and rarely last for several typhoon seasons for Taiwanese forests, contributing to their high resistance to frequent typhoon disturbance.
Disciplines :
Environmental sciences & ecology
Life sciences: Multidisciplinary, general & others
Author, co-author :
Peereman, Jonathan  ;  Université de Liège - ULiège > Sphères ; Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
Aaron Hogan, J.;  Department of Biological Sciences, Florida International University, Miami, United States ; Department of Biology, University of Florida, Gainesville, United States
Lin, Teng-Chiu;  Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
Language :
English
Title :
Intraseasonal interactive effects of successive typhoons characterize canopy damage of forests in Taiwan: A remote sensing-based assessment
Publication date :
October 2022
Journal title :
Forest Ecology and Management
ISSN :
0378-1127
eISSN :
1872-7042
Publisher :
Elsevier B.V.
Volume :
521
Pages :
120430
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSF - National Science Foundation
NASA - National Aeronautics and Space Administration
Funding text :
We thank Dr. Chung-Te Chang (Adam) for providing the shapefiles of the Fushan and Lienhuachih reserves. We acknowledge the use of MODIS data, which are a NASA product. This research is supported by the Ministry of Science and Technology (grant numbers 108-2313-B-003 -001 -MY3, 110-2811-B-003 -502). We thank Dr. Christopher Patrick, William McDowell and John Kominoski for organizing the Ecosystem Responses to Hurricanes Synthesis Workshop funded by National Science Foundation (NSF) workshop grant no. DEB no 1903760 which facilitated the collaboration among the authors of this study.
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