De Wit, T 1982: Permanent plots, cryptogamic plant species and air pollution. - In: S. Steubing & H.-J. Jager (eds.): Monitoring Air Pollution by Plants: Methods and Problems. . Dr. W. Junk, The Hague-Boston-London pp. 53-58. [RLL List # 116-22 / Rec.# 4135] Keywords: AIR POLLUTION/ BIOMONITORS/ ECOLOGY/ NETHERLANDS/ TECHNIQUE
Abstract: 3 figures. [Discusses the use of permanent plots for monitoring purposes with lichens and other vegetation in the Netherlands.]