Net radiation of mountain cultivated Norway spruce [Picea abies (L.) Karst.] stand: evaluation of shortand long-wave radiation ratio

0364851 - ÚVGZ 2012 RIV PL eng J - Článek v odborném periodiku
Marková, I. - Marek, Michal V.
Net radiation of mountain cultivated Norway spruce [Picea abies (L.) Karst.] stand: evaluation of shortand long-wave radiation ratio.
Folia Forestalia Polonica. Roč. 53, č. 2 (2011), s. 114-122. ISSN 0071-6677
Výzkumný záměr: CEZ:AV0Z60870520
Klíčová slova: downward short- and long-wave radiation * upward short- and long-wave radiation * sun elevation * clearness index
Kód oboru RIV: GK - Lesnictví

The radiation exchange drives the plant ecosystems energy balance and provides the energy for photosynthesis, transpiration and plant growth. The investigation on net radiation and its component during vegetation season in relation to the clearness index and sun elevation in a cultivated 31-year-old mountain spruce [Picea abies (L.)Karst.] stand is presented. Downward short-wave radiation (Sd) incident on the spruce stand was the main part of the short-wave radiation balance during the whole growing season (April-October) 2008. The Sd amount is seasonally variable factor determined by the duration of solar shine and the atmosphere transmissivity. Obtained value of net radiation and downward short-wave radiation ratio amounts to 0.61 on average during the growing season 2008 documenting the importance of the downward short-wave radiation in the net radiation of investigated spruce stand.
Trvalý link: http://hdl.handle.net/11104/0200226