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

Leo Heikurainen, Kustaa Seppälä

Ojitusalueiden puuston kasvun jatkumisesta ja alueellisuudesta

Heikurainen L., Seppälä K. (1973). Ojitusalueiden puuston kasvun jatkumisesta ja alueellisuudesta. Acta Forestalia Fennica no. 132 article id 7566. https://doi.org/10.14214/aff.7566

English title: Regional variation and continuity of stand growth in old forest drainage areas.

Abstract

The study deals with the development during the 1950s and 1960s of a stand growing on peatlands which had been drained in the 1930s. The following characters were determined by measurements: the volume of the growing stock, the volume increment, the relative increment, the increment percent and the increment curves. Moreover, the possible changes taking place in the difference between tree growth along the ditches and in the middle of the strip between ditches were studied. In addition, the regional variation in increment was studied; this question was studied as the regression between the relative growth and the temperature sum. The results were compared with other Finnish investigations into the regional variation of increment.

The volumes of the growing stock had increased during the course of twelve years by 70–10 m3 /ha depending on the site type and climatic zone concerned. The relative increment had dropped in each case studied. As a matter of fact, this is only to be expected because the volumes had increased and the absolute growth had remained more or less unchanged. The development of the increment percent was compared with mineral soil stands in the case of Southern Finland, both uncut stands and stands treated with cuttings. According to the results obtained, the development of the increment percent was better in the present material than in uncut forests, but in some cases it did not reach the level of tended stands. The revival of the tree crop after draining takes place at different rates in the vicinity of and, on the other hand, at greater distances from the ditches and that this relationship is dependent on the fertility of the site.

The PDF includes a summary in English.

Original keywords
soiden ojitus; turvekankaat; kasvu; ojat; kasvun vaihtelu

English keywords
drained peatlands; peatlands; increment; ditches; variation in increment

Published in 1973

Available at https://doi.org/10.14214/aff.7566 | Download PDF

Creative Commons License

Register
Click this link to register for Silva Fennica submission and tracking system.
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
Heikurainen L. (1967) Influence of cuttings on the water economy of dr.. Silva Fennica vol. 82 no. 2 article id 7175
Heikurainen L., Seppälä K. (1965) Regionality in stand increment and its dependenc.. Silva Fennica vol. 78 no. 4 article id 7157
Heikurainen L., Päivänen J. et al. (1964) Ground water table and water content in peat soil Silva Fennica vol. 77 no. 1 article id 7149
Heikurainen L. (1963) Use of ground water table fluctuations for measu.. Silva Fennica vol. 76 no. 5 article id 7145
Heikurainen L., Seppälä K. (1963) The effect of drainage degree on temperature con.. Silva Fennica vol. 76 no. 4 article id 7144
Heikurainen L. (1961) The influence of forest drainage on growth and r.. Silva Fennica vol. 71 no. 8 article id 7117
Mikola P., Kangas E. et al. (1959) Silvicultural research in Finland from 1909 to 1.. Silva Fennica vol. 70 no. 4 article id 7494
Mikola P., Kangas E. et al. (1959) Silvicultural research in Finland from 1901 to 1.. Silva Fennica vol. 70 no. 3 article id 7493
Heikurainen L. (1959) Condition and growing stock of drained peatlands.. Silva Fennica vol. 69 no. 1 article id 7489
Heikurainen L. (1958) Root systems of mixed forest in drained peatlands Silva Fennica vol. 67 no. 2 article id 7476
Heikurainen L. (1957) Changes in depth and top width of forest ditches.. Silva Fennica vol. 65 no. 5 article id 7468
Heikurainen L. (1955) Structure of Scots pine root systems in a pine s.. Silva Fennica vol. 65 no. 3 article id 7466
Heikurainen L. (1955) On the seasonal changes of root system of a pine.. Silva Fennica vol. 65 no. 2 article id 7465
Heikurainen L. (1954) Regeneration of Scots pine stands of pine swamps.. Silva Fennica vol. 61 no. 27 article id 7439
Heikurainen L., Laine J. (1985) Duration of the height growth response of young .. Silva Fennica vol. 19 no. 2 article id 5237
Heikurainen L. (1985) The influence of birch nurse crop (Betula pubesc.. Silva Fennica vol. 19 no. 1 article id 5233
Heikurainen L., Laine J. et al. (1983) Fertilization and ditch spacing experiments conc.. Silva Fennica vol. 17 no. 4 article id 5198
Heikurainen L. (1982) Development of seedling stands on drained peatla.. Silva Fennica vol. 16 no. 3 article id 5163
Heikurainen L., Joensuu S. (1981) The hydrological effects of forest drainage Silva Fennica vol. 15 no. 3 article id 5124
Heikurainen L. (1973) The profitability limit in forest drainage. Silva Fennica vol. 7 no. 4 article id 4891
Heikurainen L., Ouni J. (1970) Height growth of seedling stands growing on peat.. Silva Fennica vol. 4 no. 2 article id 4817
Heikurainen L., Laine J. (1976) Effect of fertilization, drainage and temperatur.. Silva Fennica vol. 0 no. 150 article id 7584
Heikurainen L., Seppälä K. (1973) Regional variation and continuity of stand growt.. Silva Fennica vol. 0 no. 132 article id 7566
Heikurainen L. (1973) A method for calculation of the suitability of p.. Silva Fennica vol. 0 no. 131 article id 7565
Heikurainen L., Veijola P. (1971) Effect of fertilization and ditch spacing on reg.. Silva Fennica vol. 0 no. 114 article id 7548
Heikurainen L. (1971) Ground water table in drained peat soils and its.. Silva Fennica vol. 0 no. 113 article id 7547
Heikurainen L. (1960) Swamp forestry research in Finland. Silva Fennica vol. 0 no. 108 article id 4696
Heikurainen L. (1970) The effect of thinning, clear cutting, and ferti.. Silva Fennica vol. 0 no. 104 article id 7538
Heikurainen L., Päivänen J. et al. (1966) Scots pine seeding and planting on drained peat .. Silva Fennica vol. no. 119 article id 4731
Heikurainen L., Keltikangas M. et al. (1963) Allocation of costs in joint forest drainage und.. Silva Fennica vol. no. 115 article id 4716
Heikinheimo L., Heikurainen L. et al. (1963) Effects of forest improvement on employment and .. Silva Fennica vol. no. 114 article id 4715
Heikurainen L. (1957) Eutrophic pine bogs and their suitability for dr.. Silva Fennica vol. no. 93 article id 4672
Heikurainen L. (1951) Determination method for peatland vegetation Silva Fennica vol. no. 70 article id 4620