References
- Albrektson, A. , 1988. Needle litterfall in stands of Pinus sylvestris L. in Sweden, in relation to site quality, stand age and latitude , Scand. J. For. Res. 3 (1988), pp. 333–342.
- Anonymous, , 1988. Manual of methodologies and criteria for harmonized sampling, assessment, monitoring and analysis of the effects of air pollution of forests. . (Prepared by the Programme Coordinating Centres with the assistance of United Nations Environment Programme (UNEP) and the Secretariat of the United Nations Economic Commission for Europe (UN‐ECE); 1988. p. 94, 1988.
- Doak, C. C. , 1935. Evolution of foliar types, dwarf shoots and cone scales of Pinus. , Univ. Ill. Bull. 32 (1935), pp. 1–106.
- Harris, J. M. , and Singh, A. P. , 1987. Unusual growth patterns in short shoots of Pinus radiata , Can. J. Bot. 65 (1987), pp. 280–285.
- Innes, J. L. , 1988. Forest health surveys: problems in assessing observer objectivity , Can. J. For. Res. 18 (1988), pp. 560–565.
- Jalkanen, R. , 1986. Lophodermella sulcigena on Scots pine in Finland , Commun. Inst. For. Fenn. 136 (1986), p. 41.
- Johansen, D. A. , 1940. Plant microtechnique. . New York: McGraw‐Hill; 1940.
- Mikola, P. , 1952. Havumetsien viimeaikaisesta kehityksestä metsänrajaseuduilla. Summary: On the recent development of coniferous forests in the timber‐line region of northern Finland , Commun. Inst. For. Fenn. 40 ((2)) (1952), p. 35.
- Muir, P. S. , and Armentano, T. V. , 1988. Evaluating oxidant injury to foliage of Pinus ponderosa: a comparison of methods , Can. J. For. Res. 18 (1988), pp. 498–505.