Adaptation of grasses in the Netherlands to air pollution

SUMMARY In three separate experiments, the response of three populations of Agrostis capillaris L., Nardus stricta L., and Lolium perenne L., from areas differing in ambient air pollution concentrations, were examined in experimental fumigations using SO 2 , O 3 , NO 2 and NH 3 . Growth of A. capillaris generally increased following the fumigations, except at the highest pollutant concentrations (120 μg m ‐3 O 3 , alone or combined with 150 μg m ‐3 SO 2 and 35 μg m ‐3 NO 2 ). Growth of each population of N. stricta was stimulated by the SO 2 and NH 3 combination, but was significantly increase... Mehr ...