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Effect of canopy density on the defoliation of the European silver fir (Abies alba Mill.) due to heavy industrial pollution

100%

Filipiak M., Napierala-Filipiak A.

Dendrobiology

2009

tom 62

17-22

Until recently, the level of industrial air pollution in the Sudetes (a mountain range extending on the Czech Republic and Poland border) was very high.This caused a large-scale forest decline, especially in the western part of the Polish Sudetes: in the Izerskie and Karkonosze Mts. An analysis of data on fir defoliation in that area, collected directly after the period of heavy industrial pollution, showed a clear dependence of the degree of defoliation of the primary crown on canopy density: the lower the density, the higher the degree of defoliation.

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1 Dendrobiology

1 Filipiak M.

1 Napierala-Filipiak A.

1 2009

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Effect of canopy density on the defoliation of the European silver fir (Abies alba Mill.) due to heavy industrial pollution