Young ISDR

KAUPPILA, T., AHOKAS, T., NIKOLAJEV-WIKSTRÖM, L., MÄKINEN, J., TAMMELIN, M.H. & MERILÄINEN, J.J. 2016.  Aquatic effects of peat extraction and peatland forest drainage: a comparative sediment study of two adjacent lakes in Central Finland . Environmental Earth Sciences 75: 1473.  DOI: 10.1007/s12665-016-6278-x The aquatic effects of forestry practices and peat extraction continue to cause serious concerns. The effect mechanisms of peat extraction on water quality and aquatic ecology of the receiving surface waters are well known, but the impacts are often difficult to differentiate from those of forest management. A pairwise temporal sediment study was conducted on two adjacent lakes in Central Finland to study whether the unique effects of peat extraction can be detected in an area of intensive forest drainage. Both lakes are affected by forestry, but the reference lake has no history of peat extraction in its watershed. The deepest parts...

TAMMELIN, M. , KAUPPILA, T. & VIITASALO, M. 2017.  Factors controlling recent diatom assemblages across a steep local nutrient gradient in central-eastern Finland. Hydrobiologia . DOI: 10.1007/s10750-017-3229- 9 The Iisalmi Route, a chain of lakes in central-eastern Finland, is more eutrophic than its surroundings. We used multivariate analyses to study the influence of selected environmental factors (water quality, basin characteristics, and subcatchment surficial geology) on the recent diatom assemblages across this steep local nutrient gradient. In addition to the spatial analysis of surface sediment diatom assemblages from 51 sampling sites (48 lakes), temporal changes in the total phosphorus (TP) concentrations of one Iisalmi Route lake (Lake Kirmanjärvi) were analyzed using weighted averaging partial least squares regression and 27 fossil diatom samples. Both TP and electrical conductivity (EC) showed statistically significant indepe...