In a nutshell: exploring single tree parameters and above-ground carbon sequestration potential of common walnut (Juglans regia L.) in agroforestry systems

Abstract Although agroforestry systems (AFS) provide numerous ecosystem services and are a recognized strategy for climate change mitigation adaptation, knowledge on the woody component is lacking. Single tree data could improve planning, management optimization of AFS. One species which great interest due to its valuable timber non-timber products walnut ( Juglans regia L.). We used terrestrial laser scanning fit quantitative structure models (QSMs) 65 trees in AFS with diameter at breast height (DBH) ranging from 1 77 cm. Based QSMs, volumetric information as well crown parameters were derived. By combining bark wood density followed by carbon nutrient concentration, whole biomass, content To enable application our results, we modeled allometric relationships based DBH. The maximum projection area was more than 340 m 2 , leafless above-ground dry biomass 7.4 t amount stored 3.6 (in metric tons). A modelled comprising 15 per hectare target DBH 60 cm projects end 60-year rotation period an volume 100 3 about roughly 30 sequestered carbon. producing functions, much needed small-scale modelling