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Перевод: deforestation

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Тезаурус:

1. It is perhaps not widely appreciated the effect deforestation can have on a country like Ethiopia.
2. Deforestation also affects the environment in other more complex ways.
3. Deforestation in the Philippines, especially that for agricultural development, is likely to be a major handicap to its economic development unless appropriate land-use strategies are implemented.
4. Apart from the problems associated with complete deforestation, extensive areas of primary forest have been degraded so that they are no longer as productive in terms of biomass, and sufficiently fragile that they too face extinction in the coming decades.
5. The most significant reasons for deforestation are the spread of shifting cultivation, increasing plantation agriculture and large-scale ranching, logging, mineral extraction and road and dam construction.
6. Development pressures in the Amazon basin, such as the construction of hydro-electric dams, deforestation, and commercial fishing, have brought a flood of new settlers to the area.
7. In a general sense the evidence examined in Chapter 2 (that in many parts of the world, soil erosion, floods, soil degradation and deforestation were probably getting worse) could be used in a crude sense to show that conservation policies have not succeeded.
8. Of particular importance is the effect that deforestation has on tropical soils.
9. Deforestation, overgrazing and shortened fallow periods threaten the fragility of Rwanda's soils.
10. The bill identifies much of the blame for the tremendously high rate of deforestation in India as belonging to the adivasis or tribal peoples, who have been systematically marginalised and impoverished for over a thousand years, and who have now retreated into the mountains and remaining forests of central India (a close-up case study is provided of a tribal group, the Sora, in sect. 7.4).
11. The region has a long history of human activity (section 3.2.1), and although erosion has always been a problem it has intensified considerably in the last 100 years as deforestation has accelerated and grasslands have been degraded.
12. This is reflected in the increased sediment load of many rivers, especially in Southeast Asia where, as Fig. 7.4 shows, deforestation is occurring rapidly.
13. There are varying estimates of the amount of the world's tropical forests that have already been removed and at what rate deforestation is proceeding.