Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2012
Forfattere
Siri Fjellheim Outi Manninen Pirjo Tannhuanpaa Kristin Daugstad Lena Dafgård agnese Kolodinska Petter Marum Odd Arne RognliSammendrag
Det er ikke registrert sammendrag
Forfattere
Siri Fjellheim Outi Manninen Pirjo Tannhuanpaa Kristin Daugstad Lena Dafgård agnese Kolodinska Petter Marum Odd Arne RognliSammendrag
Det er ikke registrert sammendrag
Forfattere
Carl Jonas Jorge SpetzSammendrag
Det er ikke registrert sammendrag
Forfattere
DJ Sargent T Passey N Surbanovski E. Lopez Girona P Kuchta Jahn Davik R. Harrison A Passey AB Whitehouse DW SimpsonSammendrag
Det er ikke registrert sammendrag
Forfattere
Richard Bischof Leif Egil Loe Erling Meisingset Barbara Zimmermann Bram F. A. Van Moorter Atle MysterudSammendrag
Det er ikke registrert sammendrag
Sammendrag
The ingrowth core method is widely used to assess fine root (diameter < 2 mm) production but has many inherent deficiencies. In this study, we modified this method by adopting mini ingrowth cores (diameter 1.2 cm), extending sample intervals to a growing season, and developing new models to quantify the concurrent production, mortality and decomposition, and applied them to a secondary Mongolian oak (Quercus mongolica Fischer ex Ledebour) forest. Annual fine root production, mortality and decomposition estimated by our method were 2.10 ± 0.23, 1.78 ± 0.20 and 0.85 ± 0.13 t ha−1, respectively, and 33.3% of the production was decomposed in the growing season. The production estimate using our method was significantly higher than those using two long-term ingrowth core (sample interval >2 months) methods. However, it was significantly lower than that using the short-term ingrowth core (sample interval <2 months) method, presumably due to the lower root competition and less decomposition occurring in the short-term cores. The fine root estimates using our method in the growing season were generally higher than those using the forward and continuous inflow methods but lower than those using the backward method. Our method reduces the disturbances in roots and soil, minimizes the sampling frequency and improves the quantification of fine root decomposition during the sample intervals. These modifications overcome the limitations associated with the previous ingrowth core methods. Our method provides an improved alternative for estimating fine root production, mortality and decomposition.
Forfattere
Leif SundheimSammendrag
Det er ikke registrert sammendrag
Forfattere
Subal Chandra Kumbhakar Sjur Baardsen Gudbrand LienSammendrag
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Forfattere
Prasanna Lakshmi Ganggavaramu Vincent Eijsink Richard Meadow Sigrid GåseidnesSammendrag
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Forfattere
Prasanna Lakshmi Ganggavaramu Vincent Eijsink Richard Meadow Sigrid GåseidnesSammendrag
Det er ikke registrert sammendrag