A clearcut area may be relatively small, or may span for miles.
environmental effect of selective tree cutting Oct 21, Conventional satellite surveys reveal that, in an average year, an estimated 5, square miles of Amazon forest (roughly the size of Connecticut) are burned or clear-cut to make way for cattle ranching, farming and other development. But when selective logging is factored in, that figure increases two-fold, Asner and his co-workers found. Feb 04, The results of clearcutting are not only felt in the immediate area.
Clearcutting also has an impact on the quality of the atmosphere, beginning when the trees are cut down. Trees help to filter pollutants from the air, and are also an important part of the carbon cycle. Removing trees has a direct impact on the environment, especially when combined with slash-and-burn practices which result in scorched earth and in a serious increase of environmental. Jan 01, This could explain the fact that selective cutting of ligneous vegetation had no significant effect on the average total herbaceous biomass during the study period at neither of the two sites.
Ecol Eng -
Tree cutting was assumed to increase herbaceous production by reducing the competition for water and nutrients and by increasing the availability of light (Frost et al.).Cited by: Oct 01, At the selective cutting site, 20% of the basal tree area was removed, creating gaps of about 20 m diameter but retaining the stability of the stand (Huber et al.). The impact of soil compaction was avoided by choosing plots that were not affected by forest treegrinding.bar by: Dec 09, Abstract.
Tropical deforestation is well known to have serious negative consequences for biodiversity, terrestrial carbon sinks and the balance of atmospheric greenhouse gases. By contrast, selective logging of tropical forests is often regarded as having a lesser impact on the ecosystem particularly in long terms, even though there have been few critical evaluations of the practice, Cited by: Most people tend to believe that selective logging is better for the environment than clear cutting.
However, this is not necessarily true. In selective logging, the best and strongest trees are felled, and the weaker ones left behind.