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2013 | 61 | 3 |
Tytuł artykułu

Importance of coarse woody debris (CWD) for moisture control and survival of Norway spruce (Picea abies L. Karst.) seedlings

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Highly decayed coarse woody debris (CWD) is an important seedbed substrate in various forest ecosystems. In Europe, this particularly holds for spruce forests on shallow soils with insufficient water-holding capacity. Effect of Norway spruce (Picea abies L. Karst.) seedlings cover on CWD moisture was investigated under field conditions. Our hypothesis was that if CWD provides moisture benefits for successful recruitment and further growth of spruce seedlings, CWD water content should be considerably reduced in nurse logs compared to logs without spruce seedlings. The study was conducted in a natural subalpine Norway spruce forest located in the massif of Poľana (1351 m a.s.l.), Western Carpathians, Slovakia. Six downed spruce logs in advanced stage of decay were selected in the forest, three of them covered with advanced seedlings and the remaining logs devoid of them. CWD moisture was measured by Time Domain Reflectometry during two vegetation periods (2007, 2008). Average difference between CWD moisture in logs with and without advanced seedlings was –0.09 and thus significant at P = 0.02 according to t-test. Based on the tested assumption that throughfall was comparable for both groups of logs, the assessed evaporation of the seedlings cover reached ca 0.73 mm day⁻¹ m⁻² of CWD surface (in the horizontal projection) during one vegetation period. This rate is generally comparable with seedlings growing in soils under unconstrained moisture conditions. The role of nurse logs in the recruitment of spruce seedlings is therefore mainly important on soils with limited water-holding capacity.
Wydawca
-
Rocznik
Tom
61
Numer
3
Opis fizyczny
p.471-476,fig.,ref.
Twórcy
  • Department of Landscape Planning and Design, Faculty of Ecology and Environmental Sciences, Technical University in Zvolen, Slovakia
autor
  • Department of Natural Environment, Faculty of Forestry, Technical University in Zvolen, Slovakia
autor
  • Department of Natural Environment, Faculty of Forestry, Technical University in Zvolen, Slovakia
autor
  • Department of Natural Environment, Faculty of Forestry, Technical University in Zvolen, Slovakia
autor
  • Department of Silviculture, Faculty of Forestry, Technical University in Zvolen, Slovakia
Bibliografia
  • Baier R., Ettl R., Hahn C., Göttlein A. 2006 – Early development and nutrition of Norway spruce (Picea abies (L.) Karst.) seedlings on different seedbeds in the Bavarian limestone Alps – a bioassay – Ann. For. Sci. 63: 339–348.
  • Brang P., Moran J., Puttonen P., Vyse A. 2003 – Regeneration of Picea engelmannii and Abies lasiocarpa in high-elevation forests of south-central British Columbia depends on nurse logs – Forest. Chron. 79: 273–279.
  • Césari S.N., Busquets P., Colombo–Pinol F., Mendez–Bedia I., Limarino C.O. 2010 – Nurse logs: An ecological strategy in a late Paleozoic forest from southern Andean region – Geology, 38: 295–298.
  • FAO 2006 – World Reference Base for Soil Resources. World Soil Resources Reports, 103. Food and Agriculture Organization of the United Nations: Rome.
  • Harmon M.E., Sexton J. 1995 – Water balance of conifer logs in early stages of decomposition – Plant Soil, 172: 141–152.
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  • Jaloviar P., Kucbel S., Vencúrik J. 2008 – Selected morphological parameters of Norway spruce (Picea abies (L.) Karst.) natural regeneration on the coarse woody debris in NNR Babia hora – Beskydy 2: 21–28.
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  • Pichler V., Homolák M., Skierucha W., Pichlerová M., Ramírez D., Gregor J., Jaloviar P. 2012 – Variability of moisture in coarse woody debris from several ecologically important tree species of the Temperate Zone of Europe – Ecohydrology, 424–434.
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  • StatSoft 2009 – STATISTICA for Windows, Volume III: Statistics 2. StatSoft: Tulsa, OK
  • Svoboda M., Fraver S., Janda P., Bace R., Zenahlikova J. 2010 – Natural development and regeneration of a Central European montane spruce forest – Forest. Ecol. Manag. 260: 707–714.
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  • Škvarenina J., Minďáš J., Střelcová K. 2004 – Bioclimatological and ecophysiological research in Biosphere Reserve Poľana (In: Trvalo udržateľné využívanie lesa vo vzťahu k ekologickej stabilite krajiny Biosférickej rezervácie – Chránenej krajinnej oblasti Poľana [Sustainable utilization of forests in relation to the ecological stability of the Biosphere Reserve – Protected Landscape Area Poľana] Eds: D. Sláviková, M. Pavlik) – Zvolen, Vydavateľstvo Technickej univerzity vo Zvolene, pp. 49–63.
  • Takahashi L., Sakai Y., Ootomo R., Shiozaki M. 2000 – Establishment of tree seedlings and watersoluble nutrients in coarse woody debris in an old-growth Picea abies forest in Hokkaido, northern Japan – Can. J. Forest. Res. 30: 1148–1155.
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Typ dokumentu
Bibliografia
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