The invention discloses a
plant configuration mode
screening method with strong dust retention ability of
urban forest, which comprises the following steps: according to different
air pollution degree, dividing sample plots, respectively selecting landscape
plant configuration as analysis object in each plot; Collecting the leaves of each
plant configuration respectively; measuring PM (10), PM (2.5) adsorption capacity per unit leaf area of each plant;. Determining the dust retention per unit leaf area of each plant; establishing a comprehensive evaluation
index system based on dust retentioncapacity, forest landscape, environmental adaptability and growth characteristics to sort the dust
retention capacity of plants in different plots. Wherein the evaluation index of dust
retention capacity is The adsorption capacity of PM (10), PM (2.5) and dust
retention capacity of unit leaf area were measured by step S3-S_4. A multi-level comprehensive evaluation
index system was established according to the different
pollution degree of the sample plots, and the dust retention ability of the tested plants was sorted by using the regional and
analytic hierarchy process (AHP). The evaluation results were highly reliable and pertinent, which provided guidance for
urban forest construction and
air pollution prevention and control.