Proceedings of the International Symposium on Forest Drainage Jyväskylä-Oulu 1974

A4, 416 pages

2 - 6 September 1974

Foreword by Leo Heikurainen

CONTENTS

Section I. The ecological fundaments of forest drainage

Coordinator: Prof. H. Holmen (Sweden)
Elpatievsky, M.M., The main principles of forestry development of swamps in the north-west of the Russian Soviet Federative Socialist Republic
Huikari, O., Site quality estimation on forest land
Potayevitch, E.V., Kutchko, L.A., On some physiological peculiarities of bog plants
Salmgren, O., A peatland-classification and land-use model
Smoljak, L.P., Reclamation of swamp forests in Buelorussia

Coordinator: Prof. N.I. Pyavchenko (U.S.S.R.)
Glebov, F.Z., Toleiko, L.S., The biological productivity as index of mire formation and forest formation processes at paludal forest
Kozlovskaya, L.S., The effect of drainage on the change in the biological activity of forest peat soils
Pyavchenko, N.I., Complex stationary investigations of peatlands in Karelia
Yelina, G.A., Biological productivity of Karelian peatlands

Coordinator: Dr. D.H. Boelter (U.S.A.)
Ahti, E., Measuring seasonal moisture variation of drained peatlands by using tensiometers
Heikurainen, L., Laine, J., Estimating evapotranspiration in peatlands on the basis of diurnal water table fluctuation
Korepanov, A.A., Subsoil waters of marsh pine forests in the Pre-Urals
Lähde, E., Influence of the ditch spacing and ditch depth on the level of the aerobic limit in low-sedge bog
Pyatetsky, G.Y., The drainage rate and time for providing it on the bogs of Karelia

Section II. Forest improvement techniques

Coordinator: Dr. E. Paavilainen (Finland)
Aitolahti, M., The maintenance of forest ditches
Kaunisto, S., On direct seeding of open peatlands
Niskanen, M., Mechanical forest drainage in Finland
Valdaisky, N.P., Design experience in the machines with active rotary implements for forest reclamation
Virtanen, J., Evenness of fertilizer distribution in mechanized and manual spreading

Coordinator: Dr. E. Sabo (U.S.S.R.)
Borisov, G.A., Solovyov, A.P., The mechanization of design work on forest improvement and prerequisites for automation using computers
Elpatievsky, M.M., Konstantinov, V.K., Orlov, E.D., Pyatin, G.M., Yuzepchuk, I.A., Design of drainage network on poor peatlands
Konstantinov, V.K., Forest drainage network operation
Sabo, E.D., Application of mathematical methods and computerization in forest drainage

Section III. Silviculture on drained areas

Coordinator: Prof. T.E. Maki (U.S.A.)
Boelter, D.H., Forest drainage in north central United States
Braekke, F.H., The effect of fertilization and drainage intensity on height growth of Scots pine and Norway spruce in north Norway
Päivänen, J., Hydrological effects of clear cutting in peatland forests
Pyatetsky, G.Y., Ionin, I.V., The results of experiments on pine cultivation in the drained mires of Karelia, U.S.S.R.
Savill, P.S., Dickson, D.A., Wilson, W.T., Effects of ploughing and drainage on growth and root development of Sitka spruce on deep peat in Northern Ireland
Thompson, D.A., A brief review of drainage in deep peat in the Forestry Commission

Coordinator: Dr. K. Seppälä (Finland)
Istomin, G.I., Tarakhanov, A.M., Forestry efficiency of pine forests drainage in the north of the European part of the U.S.S.R.
Keltikangas, M., Seppälä, K., Variation in the profitability of forest drainage
Knize, A.A., Rubtsov, V.G., The peculiarities of drained forest areas evaluation
Kuusela, K., Effect of peatland forest improvement on timber production in Finland
Medvedyeva, V.M., The influence of drainage on the biological and economical productivity of boggy stands in Karelia

Coordinator: Dr. W.O. Binns (Great Britain)
Karsisto, K., On the duration of fertilization influence in peatland forests
Mikola, P., Afforestation of bogs after removal of peat for industrial use
Paavilainen, E., The use of nitrogen in fertilizing peatland forests
Stratonovich, A.I., Moiko, M.F., Markova, I.A., Danilina, T.G., Experimental application of mineral fertilizers for accelerating the growth and raising the productivity of forests on drained areas
Strzelecki, W., The influence of mineral fertilization on the growth of black alder on peatland
Valmari, A., Organic fertilization of peatland forest

Section IV. Environmental and social consequences of forest drainage

Coordinator: Dr. H. Kuntze (Federal Republic of Germany)
Heikurainen, L., An attempt to survey the influence of forest drainage on the hydrology
Sabo, E.D., Prospects for the drainage of forests in the U.S.S.R. with due regard for the preservation of natural resources
Seuna, P., Influence of forest draining on the hydrology of an open bog in Finland
Veijalainen, H., Berries, mushrooms and wild life on drained peatlands
Vompersky, S.E., Investigation of the water balance of drained forests and swamps