University of Tehran Journal of Solar Energy Research 2588-3097 4 3 2019 09 30 Effect of tree species on albedo in Iranian temperate forests: comparing conifers and broadleaf trees in two seasons 188 199 73376 10.22059/jser.2019.289156.1128 EN Leila Vatani Department of forest science, Faculty of Natural Resources, University of Tarbiat Modares, Noor, Mazandaran, Iran Seyed Mohsen Hosseini Department of forest science and engineering, Faculty of natural resources, Tarbiat Modares University, Noor, Mazandaran, Iran Mahmoud Raeini Sarjaz Department of water engineering, Sari Agricultural Sciences and Natural Resources University, Mazandaran, Iran Seyed Jalil Alavi Department of forest science and engineering, Faculty of natural resources, Tarbiat Modares University, Noor, Mazandaran, Iran. Seyed Saeed Shamsi Faculty of Natural Resources, Tarbiat Modares University, Noor, Mazandaran, Iran Mohammad Javad Zohd Ghodsi Agricultural Meteorology Research Center, Rasht, Guilan, Iran Journal Article 2019 09 17 Albedo is the fraction of solar energy reflected from a surface back to the atmosphere; it is controlled by the characteristics of the surface, specially land cover type. Here, we examined the effects of five types of tree species (maple, poplar, chestnut-leaved oak, cypress and alder) in the mono-cultured plantations at Hyrcanian temprature forests (in the north of Iran). The field data were collected during the summer and the winter. Albedo was estimated by an albedometer set-up that was installed on a movable mast in each stand. In this study, two analytical methods were used to estimate the reaction of forest trees to the summer and winter albedo. One way ANOVA was used to determine the significance difference between tree species considering the summer and winter albedo. The analysis of variance indicated that, there was a significant difference among tree species albedo in two seasons (p˂ 0.01). In the summer alder and cypress had the highest and lowest albedo (0.34 and 0.16 respectively) and in the winter chestnut-leaved oak and alder had the highest albedo (0.19) and cypress had the lowest one (0.10). Our findings suggest that considering of these factors (summer and winter albedo), plantation with broadleaved trees is the most appropriate choice for forest regeneration in the temperate Iranian forests. https://jser.ut.ac.ir/article_73376_51fc4e35c65d5ec98ee4c64a4cd2f3b3.pdf