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Forests, Vol. 14, Pages 561: Effects of Topography and Social Position on the Solar Radiation of Individual Trees on a Hillslope in Northwest China

Solar radiation is a key factor influencing the photosynthesis and transpiration of trees. In mountainous regions, solar radiation income exhibits strong spatial heterogeneity due to topographical variations and the structural complexity of the forest. However, how the solar radiation income of individual trees in different social positions varies with slope position remains unclear. In this study, the daily solar radiation of the horizontal ground (Rh), different slope positions (i.e., at different locations on a hillslope, Rs) and individual trees with different social positions in the forest (Ri) were monitored from May to October in 2020 and 2021. The daily solar radiation income of a single hillslope (Rf) was applied to quantify the Rs response to the slope ...

mdpi.com     Mar 12, 2023