I am translating a paragraph about landscape and urbanism and since I'm not a native speaker of English I find some phrases difficult to understand. What does the phrase 'were shaded by' mean? (does it mean that the protection from the sun was created by planting the trees or does it mean that the trees were used to hide the parking lots from sight so that they are less visible?) Here is the context:
Michel Desvigne and Christine Dalnoky’s implantation of a new TGV station outside Avignon in 1995 is typical in this regard, as are numerous other works executed by them in relation to public transit. In Avignon, plane trees were employed to reinforce the linear extent of the station, while the adjacent parking lots were shaded by rows of lime trees selected for their resemblance to the orchards of the surrounding apple-growing region, thereby integrating the station into the character of the existing landscape.