This paper designs an Economy-Welfare-Environment Adjustment System model (EWEAS model or EWE model in short) which consists of the circular flow of the economic, the welfare, and the environment system of forestry. That is, this model builds the relationship between the systems for material wealth and that for mental wealth.

The EWE model is designed as a complete open system model which describes the economy-welfare-environment circular system in forestry by linking up the internal system of forestry with the surrounding external systems. The EWE model can be manipulated as a policy formation or a policy decision model, and it is available for policy evaluation in the economic, the welfare and the environmental phase of forestry. The model is a basic simulation system model which is reliable in its reproductive fitness, stability and universality. Thus, this model ought to be useful in any country in the world as well as in Japan.

Kishine, E-mail: tk@mm.unknown

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Gort J., Zubizarreta Gerendiain A. et al. (2009) Differences in fibre properties in Scots pine (P.. Silva Fennica vol. 43 no. 3 article id 193 (remove) | Edit comment

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Ilvessalo Y., (1967) The development of natural normal forest stands .. Acta Forestalia Fennica vol. 81 no. 5 article id 7170 (remove) | Edit comment

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Haltia O., Simula M. (1988) Linkages of forestry and forest industry in the .. Silva Fennica vol. 22 no. 4 article id 5359 (remove) | Edit comment

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Hertz M., (1929) Observations on annual and daily cycles in the h.. Acta Forestalia Fennica vol. 34 no. 18 article id 7231 (remove) | Edit comment

Burczyk J., Kosiński G. et al. (1991) Mating pattern and empty seed formation in relat.. Silva Fennica vol. 25 no. 4 article id 5458 (remove) | Edit comment

Wuori E., (1948) Licence sales of timber in state forests Silva Fennica vol. no. 64 article id 4592 (remove) | Edit comment

Mikola P., (1984) Selection system in timber harvesting in Finland Silva Fennica vol. 18 no. 3 article id 5220 (remove) | Edit comment

Vuokila Y., (1970) Selection from above in Intermediate cuttings Acta Forestalia Fennica vol. 0 no. 110 article id 7544 (remove) | Edit comment

Päivänen J., (1974) Nutrient removal from Scots pine canopy on drain.. Acta Forestalia Fennica vol. 0 no. 139 article id 7573 (remove) | Edit comment

Paasio I., (1941) Plant sociological principles of open bog types Acta Forestalia Fennica vol. 49 no. 3 article id 7350 (remove) | Edit comment

Tirkkonen O. O., (1952) Peatland drainage in Finland in the first half o.. Silva Fennica vol. no. 72 article id 4622 (remove) | Edit comment

Luukkanen O., (1981) Effects of gibberellins GA4 and GA7 on flowering.. Silva Fennica vol. 15 no. 4 article id 5129 (remove) | Edit comment

Pukkala T., Miina J. et al. (2002) Thinning response and thinning bias in a young S.. Silva Fennica vol. 36 no. 4 article id 524 (remove) | Edit comment

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