JutrasHokkaBeginEtAl2006

Référence

Jutras, S., Hokka, H., Begin, J. and Plamondon, A.P. (2006) Beneficial influence of plant neighbours on tree growth in drained forested peatlands: a case study. Canadian Journal of Forest Research, 36(9):2341-2350. (URL )

Résumé

In boreal forest, drainage can be successfully used to lower the water-table level of postharvest forested peatland stands suffering from watering-up. The later vegetation revival and growth is suspected to gradually create a water-table drawdown described in this study as biological drainage. Its effect on the annual stump diameter increment of planted eastern larch (Larix laricina (Du Roi) K. Koch) and naturally regenerated black spruce (Picea mariana (Mill.) BSP) was studied on a postharvested and drained forested peatland located in eastern part of the Canadian boreal forest. A factor describing the neighbourhood occupancy of every subject tree was used to illustrate biological drainage in a retrospective growth analysis. Results showed the dual effect of the neighbourhood occupancy factor: competing situations close to the ditch and growth-favouring situations farther from it. In the latter case, the studied trees demonstrated better growth with moderately increasing neighbourhood occupancy. This was interpreted as evidence of the beneficial effect of biological drainage on tree growth. The presence of speckled alder (Alnus incana subsp.rugosa (Du Roi) J. Clausen) in the neighbourhood of selected trees corresponded to improved growth for both studied species.

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@ARTICLE { JutrasHokkaBeginEtAl2006,
    AUTHOR = { Jutras, S. and Hokka, H. and Begin, J. and Plamondon, A.P. },
    TITLE = { Beneficial influence of plant neighbours on tree growth in drained forested peatlands: a case study },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2006 },
    VOLUME = { 36 },
    PAGES = { 2341-2350 },
    NUMBER = { 9 },
    ABSTRACT = { In boreal forest, drainage can be successfully used to lower the water-table level of postharvest forested peatland stands suffering from watering-up. The later vegetation revival and growth is suspected to gradually create a water-table drawdown described in this study as biological drainage. Its effect on the annual stump diameter increment of planted eastern larch (Larix laricina (Du Roi) K. Koch) and naturally regenerated black spruce (Picea mariana (Mill.) BSP) was studied on a postharvested and drained forested peatland located in eastern part of the Canadian boreal forest. A factor describing the neighbourhood occupancy of every subject tree was used to illustrate biological drainage in a retrospective growth analysis. Results showed the dual effect of the neighbourhood occupancy factor: competing situations close to the ditch and growth-favouring situations farther from it. In the latter case, the studied trees demonstrated better growth with moderately increasing neighbourhood occupancy. This was interpreted as evidence of the beneficial effect of biological drainage on tree growth. The presence of speckled alder (Alnus incana subsp.rugosa (Du Roi) J. Clausen) in the neighbourhood of selected trees corresponded to improved growth for both studied species. },
    OWNER = { amriv2 },
    TIMESTAMP = { 2012.05.16 },
    URL = { http://www.nrcresearchpress.com/doi/abs/10.1139/X06-134 },
}

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