Risto Lauhanen 
,
Erkki Ahti
Kunnostusojituksen vaikutus rämemänniköiden kehitykseen
Lauhanen R., Ahti E. Kunnostusojituksen vaikutus rämemänniköiden kehitykseen.
English title: Effects of maintaining ditch networks on the development of Scots pine standsTiivistelmä
This study aimed at finding out the effects of maintaining ditch systems by ditch cleaning and complementary ditching on volume growth of drained Scots pine (Pinus sylvestris L.) stands. Volume growth during the first ten post-treatment years was increased by 0.16 m3 ha-1 a-1 after ditch cleaning, 0.36 m3 ha-1 a-1 after complementary ditching, and 0.48 m3 ha-1 a-1 after the combined treatment. The average growth reactions during the second five-year period were considerably higher than during the first one. No drastic reductions in stand growth, however, occurred in the untreated plots during the post-treatment period of ten years.
Avainsanat
forest drainage;
peatland;
ditch cleaning;
complementary ditching;
tree stand;
Pinus sylvestris L.;
volume growth
-
Lauhanen,
The Finnish Forest Research Institute, Kaironiementie 54, FIN-39700 Parkano, Finland
Sähköposti
ei.tietoa@nn.oo
- Ahti, Sähköposti ei.tietoa@nn.oo
Vastaanotettu 31.10.2017 Julkaistu 1.1.2001
Katselukerrat 1374
Saatavilla http://suo.fi/article/9811 | Lataa PDF
