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1 Swift, M.J., Heal, O.W. & Anderson, 1979:<br />
Decomposition in terrestrial ecosystems. Studies in Ecol<strong>og</strong>y, volume<br />
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Impact of herbivores on nitr<strong>og</strong>en cycling: contrasting effects of small<br />
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Do ungulates accelerate or decelerate nitr<strong>og</strong>en cycling? Forest Ecol<strong>og</strong>y<br />
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Restoration of deciduous woodland in western Norway formerly used<br />
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Herbivore effects on plant and nitr<strong>og</strong>en dynamics in oak savanna.<br />
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8 Kooijman, A.M., Smit, A., 2001:<br />
Grazing ad a measure to reduce nutrient availability and plant productivity<br />
in acid dune grasslands and pine forests in the Netherlands. Ecol<strong>og</strong>ical<br />
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9 Skov- <strong>og</strong> Naturstyrelsen, 2003:<br />
Manual vedr. vurdering af de lokale miljøeffekter som følge af luftbåret<br />
kvælstof ved udvidelse <strong>og</strong> etablering af større husdyrbrug<br />
10 Eriksen, J., Vinther, F.P. & Søgaard, K., 2004:<br />
Nitrate leaching and N2-fi xation in grasslands of different composition,<br />
age and management. J. Agric. Sci. 142: pp. 141-151<br />
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