DOI: 10.5194/hess-19-195-2015
Scopus记录号: 2-s2.0-84920972632
论文题名: Monitoring of riparian vegetation response to flood disturbances using terrestrial photography
作者: Džubáková K ; , Molnar P ; , Schindler K ; , Trizna M
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 1 起始页码: 195
结束页码: 208
语种: 英语
Scopus关键词: Banks (bodies of water)
; Electric arcs
; Floods
; Gravel
; Infrared devices
; Photography
; Spatial distribution
; Vegetation
; Flood disturbances
; Restoration project
; Riparian vegetation
; River management
; Terrestrial photography
; Vegetation damage
; Vegetation index
; Vegetation response
; Rivers
; braided river
; floodplain
; geomorphological response
; gravel bed stream
; ground-based measurement
; riparian vegetation
; river management
; temporal period
; Maggia River
; Switzerland
; Ticino
英文摘要: Flood disturbance is one of the major factors impacting riparian vegetation on river floodplains. In this study we use a high-resolution ground-based camera system with near-infrared sensitivity to quantify the immediate response of riparian vegetation in an Alpine, gravel bed, braided river to flood disturbance with the use of vegetation indices. Five large floods with return periods between 1.4 and 20.1 years in the period 2008-2011 in the Maggia River were analysed to evaluate patterns of vegetation response in three distinct floodplain units (main bar, secondary bar, transitional zone) and to compare the sensitivity of seven broadband vegetation indices. The results show both a negative (damage) and positive (enhancement) response of vegetation within 1 week following the floods, with a selective impact determined by pre-flood vegetation vigour, geomorphological setting and intensity of the flood forcing. The spatial distribution of vegetation damage provides a coherent picture of floodplain response in the three floodplain units. The vegetation indices tested in a riverine environment with highly variable surface wetness, high gravel reflectance, and extensive water-soil-vegetation contact zones differ in the direction of predicted change and its spatial distribution in the range 0.7-35.8%. We conclude that vegetation response to flood disturbance may be effectively monitored by terrestrial photography with near-infrared sensitivity, with potential for long-term assessment in river management and restoration projects. © 2015 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78643
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Environmental Engineering, ETH Zurich, Switzerland; Department of Physical Geography and Geoecology, Comenius University, Bratislava, Slovakia; Institute of Geodesy and Photogrammetry, ETH Zurich, Switzerland
Recommended Citation:
Džubáková K,, Molnar P,, Schindler K,et al. Monitoring of riparian vegetation response to flood disturbances using terrestrial photography[J]. Hydrology and Earth System Sciences,2015-01-01,19(1)