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Articles by Tapani Sallantaus

Category: Research article

article id 253, category Research article
Riitta Väänänen, Mika Nieminen, Martti Vuollekoski, Hannu Nousiainen, Tapani Sallantaus, Eeva-Stiina Tuittila, Hannu Ilvesniemi. (2008). Retention of phosphorus in peatland buffer zones at six forested catchments in southern Finland. Silva Fennica vol. 42 no. 2 article id 253. https://doi.org/10.14214/sf.253
Our current knowledge of the P retention efficiency of peatland buffer zone areas used to reduce sediment and nutrient leaching from forestry areas is insufficient. Especially the role of P sorption by soil in buffer zones needs closer examination as there is considerable variation in the efficiency of P retention. Six sites in southern Finland were chosen for the study. The buffer zone areas varied between 0.1–4.9% of the catchment area. A total of 10 kg of solute PO4–P was added to the inflow of the buffer zone areas and the concentrations of PO4–P in inflow and outflow were measured for 2–4 years. P retention characteristics of the surface peat were determined with sorption-desorption isotherms before and after PO4–P addition and the effective buffer zone area over which the added P was spread was determined from soil water samples. P retention in the two largest buffer zone areas was complete (100% retention), and the third largest buffer retained 94%. Retention in the three smallest buffer zones was 24%, 95% and 95% of the added P. As a result of P addition reduction in peat P retention capacity was detected in three out of four cases. The effective buffer zone area varied from 67% to 100% of the total buffer zone area. Factors contributing to efficient P retention were large buffer size and low hydrological load whereas high hydrological load combined with the formation of preferential flow paths, especially during early spring or late autumn was disadvantageous. High P retention capacity in peat contributed to the sustainability of P retention. The study showed that even relatively small buffer zone areas are able to efficiently reduce P load.
  • Väänänen, Department of Forest Ecology, University of Helsinki, P.O. Box 27, FI-00014 University of Helsinki, Finland ORCID ID:E-mail: riitta.vaananen@helsinki.fi (email)
  • Nieminen, Finnish Forest Research Institute, Vantaa Research Unit, Finland ORCID ID:E-mail:
  • Vuollekoski, Finnish Forest Research Institute, Vantaa Research Unit, Finland ORCID ID:E-mail:
  • Nousiainen, Finnish Forest Research Institute, Vantaa Research Unit, Finland ORCID ID:E-mail:
  • Sallantaus, Finnish Environment Institute, Nature Division, Helsinki, Finland ORCID ID:E-mail:
  • Tuittila, Department of Forest Ecology, University of Helsinki, Finland ORCID ID:E-mail:
  • Ilvesniemi, Finnish Forest Research Institute, Vantaa Research Unit, Finland ORCID ID:E-mail:

Category: Discussion article

article id 572, category Discussion article
Timo Kuuluvainen, Kaisu Aapala, Petri Ahlroth, Mikko Kuusinen, Tapio Lindholm, Tapani Sallantaus, Juha Siitonen, Harri Tukia. (2002). Principles of ecological restoration of boreal forested ecosystems: Finland as an example. Silva Fennica vol. 36 no. 1 article id 572. https://doi.org/10.14214/sf.572
  • Kuuluvainen, Department of Forest Ecology, University of Helsinki, P.O.Box 27 FIN-00014, Finland ORCID ID:E-mail: timo.kuuluvainen@helsinki.fi (email)
  • Aapala, Finnish Environment Institute, Expert Services Department, Nature Division, P.O. Box 140, FIN-00251 Helsinki ORCID ID:E-mail:
  • Ahlroth, University Museum, Section of Natural History, P.O. Box 35, FIN-40351, Jyväskylä, Finland ORCID ID:E-mail:
  • Kuusinen, Ministry of the Environment, Land Use Department, P.O.Box 380, FIN-00131 Helsinki, Finland ORCID ID:E-mail:
  • Lindholm, Finnish Environment Institute, Expert Services Department, Nature Division, P.O. Box 140, FIN-00251 Helsinki ORCID ID:E-mail:
  • Sallantaus, Pirkanmaa Regional Environment Centre, P.O. Box 297, FIN-33101 Tampere, Finland ORCID ID:E-mail:
  • Siitonen, Finnish Forest Research Institute, Vantaa Research Centre, P.O. Box 18, FIN-01301 Vantaa, Finland ORCID ID:E-mail: juha.siitonen@metla.fi
  • Tukia, Finnish Environment Institute, Expert Services Department, Nature Division, P.O. Box 140, FIN-00251 Helsinki ORCID ID:E-mail:

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