Full text of this article is only available in PDF format.

Mika Nieminen (email)

Export of dissolved organic carbon, nitrogen and phosphorus following clear-cutting of three Norway spruce forests growing on drained peatlands in southern Finland

Nieminen M. (2004). Export of dissolved organic carbon, nitrogen and phosphorus following clear-cutting of three Norway spruce forests growing on drained peatlands in southern Finland. Silva Fennica vol. 38 no. 2 article id 422. https://doi.org/10.14214/sf.422


The effect of clear-cutting on the concentrations of dissolved organic carbon (DOC), organic nitrogen (DON), NH4+, NO3–, and P in outflow water from three productive, Norway spruce dominated drained peatlands (RCC, VCC-1, VCC-2) were studied. Changes in runoff and transport loads (concentration x runoff) at two of the catchments during the frost-free period are also presented. Approximately 40% of the area was cut at RCC and VCC-2, and 72% at VCC-1. The volume removed was 250 m3 ha–1 at RCC, 259 m3 ha–1 at VCC-1, and for VCC-2, 317 m3 ha–1. The mean annual increase in outflow concentrations of DOC during the first four years after clear-cutting was 9.0 mg l–1 at RCC, 22.8 mg l–1 at VCC-1 and 8.4 mg l–1 at VCC-2. Corresponding increases in the forms of nitrogen were: 0.23, 0.51 and 0.16 mg DON l–1; 0.06, 0.31 and 0.04 mg NH4+-N l–1; and 0.05, 0.12 and 0.22 mg NO3–-N l–1. Clear-cutting did not significantly (p > 0.05) increase P concentrations. The increase in non-frost season runoff over the first three years after clear-cutting was 107 mm at RCC and 207 mm at VCC-1. The export loads of DOC during the non-frost season increased by 80 kg ha–1 at RCC and by 184 kg ha–1 at VCC-1 over the first three years. Corresponding increases for the other studied solutes were: 1.78 and 3.98 kg DON ha–1; 0.39 and 1.49 kg NH4+-N ha–1; 0.45 and 0.48 kg NO3–-N ha–1, and 0.09 and 0.06 kg P ha–1. The study demonstrated that clear-cutting may significantly increase the export of DOC and different forms of nitrogen from drained productive peatlands while only small increases in phosphorus export may occur.

hydrochemistry; forest regeneration; peatland forestry; leaching; nutrient losses

Author Info
  • Nieminen, Finnish Forest Research Institute, Vantaa Research Centre, P.O. Box 18, FIN-01301 Vantaa, Finland E-mail mika.nieminen@metla.fi (email)

Received 12 June 2003 Accepted 14 April 2004 Published 31 December 2004

Views 2903

Available at https://doi.org/10.14214/sf.422 | Download PDF

Creative Commons License CC BY-SA 4.0

Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Finér L., Nieminen M. (1997) Dry mass and the amounts of nutrients in underst.. Silva Fennica vol. 31 no. 4 article id 5634
Hökkä H., Laurén A. et al. (2021) Defining guidelines for ditch depth in drained S.. Silva Fennica vol. 55 no. 3 article id 10494
Nieminen M., Ahti E. et al. (2010) Export of suspended solids and dissolved element.. Silva Fennica vol. 44 no. 1 article id 161
Väänänen R., Nieminen M. et al. (2008) Retention of phosphorus in peatland buffer zones.. Silva Fennica vol. 42 no. 2 article id 253
Nieminen M., Moilanen M. et al. (2007) Phosphorus allocation in surface soil of two dra.. Silva Fennica vol. 41 no. 3 article id 280
Nieminen M., Ahti E. et al. (2005) Capacity of riparian buffer zones to reduce sedi.. Silva Fennica vol. 39 no. 3 article id 371
Nieminen M., Penttilä T. (2004) Inorganic and organic phosphorus fractions in pe.. Silva Fennica vol. 38 no. 3 article id 413
Nieminen M., (2004) Export of dissolved organic carbon, nitrogen and.. Silva Fennica vol. 38 no. 2 article id 422