"پاییز کاذب": درختان تحت فشار، زود پس از تابستان سوزان انگلیسی، برگ ها را رها می کنند

‘False autumn’: stressed trees drop leaves early after scorching English summer

Season will be less vibrant with trees such as birches, which usually offer a striking burst of yellow leaves, already bare Among a canvas of copper, red and purple autumn leaves on display at Wisley garden in Surrey, south-east England, one tree stands conspicuously naked. “The birch has lost all its leaves,” says Guy Barter, the chief horticulturist at the Royal Horticultural Society. “That’s the effect of…