The influence of riparian vegetation shading on water temperature during low flow conditions in a medium sized river

摘要: Stream water temperature limits the growth and survival of aquatic organisms; whereby riparian shading plays a key role in inhibiting river warming. This study explains effects on summer temperatures at pre-alpine Austrian river, during heatwave non-heatwave periods low flow conditions. A vegetation-shading index was introduced for quantification vegetation temperature. For maximum temperatures, downstream warming 3.9 °C observed unshaded areas, followed by cooling 3.5 °C shaded reaches. Water directly responded to air cloudiness. an change 2 °C we modelled 1.3 °C reaches, but lower changes intensively Similar daily variations reaches were up 4 °C than ones. gives clear evidence that medium-sized restoration practices should consider discontinuity be less 6000 m; with more 40% dense order minimize increases due