Multi-rotation impacts of increased organic matter removal in planted forests

Organic matter cycling is critical to nutrient supply in forested ecosystems. Harvesting influences future nutrient supply by removing organic matter, but the extent of removal varies with harvesting methods. In New Zealand plantations there is little long-term data to help evaluate the relative imp...

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Autores principales:	Smaill,S.J, Garrett,L.G
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2016
Materias:	Planted forest nitrogen organic matter sustainability ong-term
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000200009
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spelling	oai:scielo:S0718-951620160002000092016-10-24Multi-rotation impacts of increased organic matter removal in planted forestsSmaill,S.JGarrett,L.G Planted forest nitrogen organic matter sustainability ong-term Organic matter cycling is critical to nutrient supply in forested ecosystems. Harvesting influences future nutrient supply by removing organic matter, but the extent of removal varies with harvesting methods. In New Zealand plantations there is little long-term data to help evaluate the relative impact of these methods on the sustainability of site productivity. To explore this issue a modelling study was initiated using the NuBalM platform to simulate the response of forest nitrogen (N) pools and the productivity of Pinus radiata D. Don to the consisten removal of different amounts of organic matter at harvest over multiple 30 year rotations across a range of growth trajectories. The harvesting method involving the greatest amount of organic matter removal (OMR) induced significant reductions in N pools and productivity by the end of the second rotation, while moderate OMR induced reductions by the end of the third rotation. Minimal OMR reduced N pools but not productivity by the end of the fourth rotation. This exploratory work suggests that management practices which influence the amount of organic matter on site can play an important role in long-term productivity and should be considered in further risk based management decision making.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.16 n.2 20162016-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000200009en10.4067/S0718-95162016005000023
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Planted forest nitrogen organic matter sustainability ong-term
spellingShingle	Planted forest nitrogen organic matter sustainability ong-term Smaill,S.J Garrett,L.G Multi-rotation impacts of increased organic matter removal in planted forests
description	Organic matter cycling is critical to nutrient supply in forested ecosystems. Harvesting influences future nutrient supply by removing organic matter, but the extent of removal varies with harvesting methods. In New Zealand plantations there is little long-term data to help evaluate the relative impact of these methods on the sustainability of site productivity. To explore this issue a modelling study was initiated using the NuBalM platform to simulate the response of forest nitrogen (N) pools and the productivity of Pinus radiata D. Don to the consisten removal of different amounts of organic matter at harvest over multiple 30 year rotations across a range of growth trajectories. The harvesting method involving the greatest amount of organic matter removal (OMR) induced significant reductions in N pools and productivity by the end of the second rotation, while moderate OMR induced reductions by the end of the third rotation. Minimal OMR reduced N pools but not productivity by the end of the fourth rotation. This exploratory work suggests that management practices which influence the amount of organic matter on site can play an important role in long-term productivity and should be considered in further risk based management decision making.
author	Smaill,S.J Garrett,L.G
author_facet	Smaill,S.J Garrett,L.G
author_sort	Smaill,S.J
title	Multi-rotation impacts of increased organic matter removal in planted forests
title_short	Multi-rotation impacts of increased organic matter removal in planted forests
title_full	Multi-rotation impacts of increased organic matter removal in planted forests
title_fullStr	Multi-rotation impacts of increased organic matter removal in planted forests
title_full_unstemmed	Multi-rotation impacts of increased organic matter removal in planted forests
title_sort	multi-rotation impacts of increased organic matter removal in planted forests
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000200009
work_keys_str_mv	AT smaillsj multirotationimpactsofincreasedorganicmatterremovalinplantedforests AT garrettlg multirotationimpactsofincreasedorganicmatterremovalinplantedforests
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Multi-rotation impacts of increased organic matter removal in planted forests

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