The description of scenery is used in the poem Jiaxu. Please think: What role did these scenery descriptions play in the poem?

The scenery is characterized by bleak autumn.

The use of these scenes aroused the melancholy mood of pursuing "Iraqis".

The whole poem contains feelings in the scenery, and the scenery is harmonious and beautiful. Continue to ask: what scenery is described, not what characteristics the scenery has? Supplementary answer: it is Jia Jian's vigorous growth, steamed with frost and white dew. These scenery first occupy the position of the river, the time is late autumn morning, and then render a bleak and cold atmosphere.