LITTER PRODUCTION I N FORESTS OF THE WORLD
167
43,19-26. Studies on productive structure of forest. 2. Estimation of standing
crop and some analyses on productivity of young birch stand ( B e t h
T a m , C. 0. (1955). M a . SkogsforsknInst. Stockh. 45, no. 5, 34 pp. Studies on
forest nutrition I. Seasonal variation in the nutrient content of conifer
needles.
T a m , C. 0. (1958). In “Forest Fertilization, a New Era”, pp. 2-11. h e r .
Potash. Inst. Handbook. Forest fertilization in Europe, its research and
practices.
Tarrant, R. F., Isaac, L. A. and Chandler, R. F., Jr. (1951). J . For. 49, 914-915.
Observations on litter fall and foliage nutrient content of some Pacific
Northwest tree species.
Viro, P. J. (1955). Commun. Inst. for. Finl. 45, 65 pp. Investigations on forest litter.
Walter, H. and Lieth, H. (1960). Klimadiagramm-Weltatlas. Jena: Gustav
Fischer.
Weck, J. (1955). “Forstliche Zuwachs-und Ertragskunde”, 160 pp. Radebeul and
Berlin : Neumann Verlag.
White, D. P. (1954). Proc. Soil Sci. SOC. Amer. 18, 326-330. Variation in the
nitrogen, phosphorus and potassium contents of pine needles with season,
crown position, and sample treatment.
Wiedemann, E. (1951). “Ertragskundliche und waldbauliche Grundlagen der
Forstwirtschaft”, 346 pp. Frankfurt-aml?lctinMain: J. D. Sauerlander’s Verlag.
Will, G. M. (1959). N.Z. J . ugric. Rea. 2, 719-734. Nutrient return in litter and
rainfall under some exotic conifer stands in New Zealand.
Witkamp, M. and van der Drift, J. (1961). Plant &Soil 15,295-31 1. Breakdown of
forest litter in relation to environmental factors.
Wright, T. W. (1957). Forestry 30, 123-133. Some effects of thinning on the soil
of a Norway spruce plantation.
Zemljanickii, L. T. (1954). Pochwovedenie 12, 30-35. (Cited in For. Abstr. 16,
469, 1965. Quantity and ash composition of litter in artificial forest plantations in the zone of chestnut soils.)
PktYPhYW.
F2
C.E.R.
167
43,19-26. Studies on productive structure of forest. 2. Estimation of standing
crop and some analyses on productivity of young birch stand ( B e t h
T a m , C. 0. (1955). M a . SkogsforsknInst. Stockh. 45, no. 5, 34 pp. Studies on
forest nutrition I. Seasonal variation in the nutrient content of conifer
needles.
T a m , C. 0. (1958). In “Forest Fertilization, a New Era”, pp. 2-11. h e r .
Potash. Inst. Handbook. Forest fertilization in Europe, its research and
practices.
Tarrant, R. F., Isaac, L. A. and Chandler, R. F., Jr. (1951). J . For. 49, 914-915.
Observations on litter fall and foliage nutrient content of some Pacific
Northwest tree species.
Viro, P. J. (1955). Commun. Inst. for. Finl. 45, 65 pp. Investigations on forest litter.
Walter, H. and Lieth, H. (1960). Klimadiagramm-Weltatlas. Jena: Gustav
Fischer.
Weck, J. (1955). “Forstliche Zuwachs-und Ertragskunde”, 160 pp. Radebeul and
Berlin : Neumann Verlag.
White, D. P. (1954). Proc. Soil Sci. SOC. Amer. 18, 326-330. Variation in the
nitrogen, phosphorus and potassium contents of pine needles with season,
crown position, and sample treatment.
Wiedemann, E. (1951). “Ertragskundliche und waldbauliche Grundlagen der
Forstwirtschaft”, 346 pp. Frankfurt-aml?lctinMain: J. D. Sauerlander’s Verlag.
Will, G. M. (1959). N.Z. J . ugric. Rea. 2, 719-734. Nutrient return in litter and
rainfall under some exotic conifer stands in New Zealand.
Witkamp, M. and van der Drift, J. (1961). Plant &Soil 15,295-31 1. Breakdown of
forest litter in relation to environmental factors.
Wright, T. W. (1957). Forestry 30, 123-133. Some effects of thinning on the soil
of a Norway spruce plantation.
Zemljanickii, L. T. (1954). Pochwovedenie 12, 30-35. (Cited in For. Abstr. 16,
469, 1965. Quantity and ash composition of litter in artificial forest plantations in the zone of chestnut soils.)
PktYPhYW.
F2
C.E.R.