'Arboles de copa flechados' are trees with pyramid shaped crowns
'Refaldado' refers to pruning the tree to raise (or lift) the crown of the tree by removing the lower branches.

"En general se pueden distinguir dos grandes grupos de árboles según los sistemas de poda de formación del tallo y de la estructura practicados: por un lado, el grupo de los árboles flechados (con un único tallo dominante o guía); y por el otro, el de los árboles con copa en cruz (con un tronco principal y a una cierta altura una cruz, a partir de la que parten les ramas principales)."
https://www.ntjdejardineria.org/tipos-de-poda-de-arbolado/

"Two common, uncomplicated pruning strategies for developing a fruit tree are the central leader and the open center, both of which can be modified and varied. ...Central leader pruning involves letting a tree have one leader while still having strong and well-balanced lateral branches. The shape becomes pyramidal or like that of a Christmas tree."
https://raintreenursery.com/blogs/pnw-edible-plant-blog/two-...

"A central leader tree is pyramidal, with the branches of the lowest scaffold whorl being longest and the higher scaffold whorl branches becoming progressively shorter to allow maximum light penetration."
https://www.agric.wa.gov.au/minor-fruits/shaping-deciduous-f...

"Elevación de la copa (refaldado)
- definición
Método de poda que consiste en quitar las ramas bajas para dejar espacio suficiente a peatones, vehículos, edificios, líneas visuales y paisajes."
https://www.infojardin.com/glosario/ejemplar/elevacion-copa-...

"Crown raising is the practice of removing branches from the bottom of the crown of a tree to provide clearance for pedestrians, vehicles, buildings, lines of site, or to develop a clear stem for timber production. Also, removing lower branches on white pines can prevent blister rust. For street trees the minimum clearance is often specified by municipal ordinance. After pruning, the ratio of the living crown to total tree height should be at least two-thirds (e.g., a 12 m tree should have
living branches on at least the upper 8 m)."
https://www.dec.ny.gov/docs/lands_forests_pdf/prunetree.pdf