Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Ghiţă Cristian CRAINIC
Coniferous stands are relatively vulnerable to the impact of extreme weather events, often being affected by windfalls, because the spruce species (Picea abies L.) has a trailing root system. As a result, high-intensity winds cause windfalls on compact surfaces and the breaking of tree crowns and trunks. Windfalls in spruce stands also affect the forest soil, on considerable surfaces. The case study was carried out in spruce stands in the Horea Apuseni Forest District, Alba County, which were affected by windfalls and breakages. The objectives of the case study refer to the impact of the extreme weather events of 2011-2017 on spruce stands, forest soil and implicitly on the management of the affected forest unit. The wood affected by these extreme phenomena was valued at a price specific to the assortments and quality of accidental wood products, registering considerable financial losses. Also, a microrelief specific to wind fellings was formed, with a extremely negative impact on the ecological rehabilitation process of the affected spruce stands. The regeneration process of these stands was carried out over a relatively long period, 10-12 years, with very large financial efforts.
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