Global Forest Resources by R.N.Chauhan

By R.N.Chauhan

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Extra resources for Global Forest Resources

Sample text

Although some writers have assumed that Plato's description of deforestation in Attica applied also to other parts of classical Greece, it is unlikely that this was so. " That some of the forest resource was able to survive these unprecedented pressures was probably at least partly due to a combination of technical and organisational ability. Knowledge of coppicing could ensure a continuing supply of timber without the elimination of the forest. Methods of sowing and planting were understood, as was the practice of thinning.

In the drier areas of the eastern Mediterranean, the forest was initially sparser and subsequently less resilient than in the better-watered areas. The drier limestone areas were especially vulnerable, and parts of eastern Greece and the neighbouring Aegean islands and coasts were amongst the first to experience complete loss of forest and the associated loss of soil. The end stage of the process was the reduction of the forest to little more than bare rock. The fate of the forest, therefore, depended on a combination of climate, location and control, as well as on demands for agricultural land and forest products.

Estimates of timber volume per hectare in different forest types have been assembled by Persson and have been used, in conjunction with his estimates of forest areas, to obtain estimates of the total volume of standing timber. These estimates are related TIle Forest Resource Base: 33 to closed forest only. The dominant role of tropical and boreal zones is clearly indicated: together they account for over threequarters of the forest area and nearly 80 per cent of the volume of standing timber. In natural forests and other stable, climatic-c1imax communities, both NPP and biomass are constant: new growth is matched by death and decay.

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