2021
DOI: 10.3390/w13101333
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Bulk Drag Predictions of Riparian Arundo donax Stands through UAV-Acquired Multispectral Images

Abstract: Estimating the main hydrodynamic features of real vegetated water bodies is crucial to assure a balance between their hydraulic conveyance and environmental quality. Riparian vegetation stands have a high impact on vegetated channels. The present work has the aim to integrate riparian vegetation’s reflectance indices and hydrodynamics of real vegetated water flows to assess the impact of riparian vegetation morphometry on bulk drag coefficients distribution along an abandoned vegetated drainage channel fully c… Show more

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Cited by 54 publications
(23 citation statements)
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“…value compatible with span height at "Bridge B" cross-section, equal to 4.50 m (See Table 2). As suggested by many previous analytical and modeling studies on the real-scale ecohydrodynamic response of common reed stands [11,40,41], the vertical distribution of plants' green leaf volumes is very similar on the whole reed height, with negligible LAI values in the first 0.10-0.15 m from the ground [38,41]. Thus, LAI is rigorously the same as plant area index (PAI) in the case of common reed beds, with PAI quantitatively obtained by dividing the total stems and leaves areas (in m 2 ) within the examined riverine plants' height (in m 2 ) and the projected ground area (in m 2 ), both measured in dedicated ecohydraulic field campaigns [42,43].…”
Section: Green-blue Flood Control Scenario I Riverine Vegetation Growthmentioning
confidence: 96%
“…value compatible with span height at "Bridge B" cross-section, equal to 4.50 m (See Table 2). As suggested by many previous analytical and modeling studies on the real-scale ecohydrodynamic response of common reed stands [11,40,41], the vertical distribution of plants' green leaf volumes is very similar on the whole reed height, with negligible LAI values in the first 0.10-0.15 m from the ground [38,41]. Thus, LAI is rigorously the same as plant area index (PAI) in the case of common reed beds, with PAI quantitatively obtained by dividing the total stems and leaves areas (in m 2 ) within the examined riverine plants' height (in m 2 ) and the projected ground area (in m 2 ), both measured in dedicated ecohydraulic field campaigns [42,43].…”
Section: Green-blue Flood Control Scenario I Riverine Vegetation Growthmentioning
confidence: 96%
“…In addition, it is necessary to manage urban areas with a large impervious area by designating them as nonpoint pollution management areas and to prevent indiscriminate urban development and damage to forests and fields. Through the results of [35,36], flood occurrence in urban areas can be analyzed through the flow of fluids according to changes in rivers and waterways and changes in trees in the river ecosystem. For new cities, it is necessary to introduce a water circulation system that can improve rainwater penetration and recharge by introducing the LID technique and activating preemptive water circulation.…”
Section: Discussionmentioning
confidence: 99%
“…However, the light spectrum and light intensity can affect leaf pigment composition and leaf spectral absorbance differently in crops. Leaf spectral analysis is a widely used technique for nondestructive monitoring of plant health status and pigment composition [10][11][12]. Excess of light in terms of intensity can be harmful to photosystems and induce plants to synthesise different antioxidant compounds and non-photosynthetic pigments to mitigate the excess of light and reactive oxygen species (ROS) scavenging activity, affecting photochemical functions.…”
Section: Introductionmentioning
confidence: 99%