Environmental Encyclopedia by Deirdre S. Blanchfield

By Deirdre S. Blanchfield

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It is a naturally occurring compound that is found in plants and is released during the metabolism of fat in the body. It is also found in volcanic gases, and is manufactured by the chemical industry (sometimes under the label ‘‘2-propanone,’’ a chemical synonym). Acetone is also found in the atmosphere as an oxidation product of both natural and anthropogenic volatile organic compounds (VOCs). It has a strong smell and taste, and is soluble in water. The evaporation point of acetone is quite low compared to water, and the chemical is highly flammable.

All Rights Reserved. The more immediate possible threat to forests is the forest decline phenomenon that has been observed in forests in northern Europe and North America. Acidic deposition in combination with other stress factors such as ozone, disease, and adverse weather conditions can lead to decline in forest productivity and, in certain cases, to dieback. Acid deposition alone cannot account for the observed forest decline, and acid deposition probably plays a minor role in the areas where forest decline has occurred.

Adaptive management was developed in the late 1970s and mid-1980s. Advocates suggest treating management policies as experiments, which are then designed to maximize learning, rather than focusing on immediate resource yields. If the environmental and resource systems on which human beings depend are constantly changing, then societies who utilize that learning cannot rely on those systems to sustain continued use. Adaptive management mandates a continual experimental process, an ongoing process of reevaluation and reassessment of planning methods and human actions, and a constant long-term monitoring of environmental impacts and change.

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