Kategoria BISAC: Nature >> Natural Resources

In the early 1970s, the post-World War II boom in world metal consumption came to a halt. As time passed, it became clear that what many first thought to be a cyclical downturn was instead a long-term, substantial decline in world metal demand. In this volume, first published in 1990, editor John E. Tilton and four fellow scholars of mineral economics analyse the causes and consequences of this decline and the prospects for future growth in world metal demand. This book will be of interest to students of business and environmental studies.

Any discussion of the various facets of petroleum policy in the United States rests to a greater or less extent on the issue of sensitivity of petroleum exploration, and hence of new petroleum discoveries to economic incentives. Indeed, a principle argument in favour of having a special petroleum policy at all is that domestic petroleum exploration is so sensitive to economic considerations that in the absence of special incentives exploration expenditures would sharply decrease, as would the amount of petroleum discovered; consequently, the nation s known oil resources would be reduced to...

The University of Florida has an ambitious goal: to harness the power of its faculty, staff, students, and alumni to solve some of society's most pressing problems and to become a resource for the state of Florida, the nation, and the world.

Florida has 51,858 miles of rivers and streams, more than 2 million acres of lakes and ponds, 11.4 million acres of wetlands, 4,437 square miles of bays and estuaries, and 8,436 miles of coastline. But these water resources face myriad threats.

Tapping the Source takes us inside the UF Water Institute, where talent from throughout...

This is a comprehensive study of forest soils for foresters, wildlife and park managers, ecologists, and others interested in forest soils. It provides a valuable text for introductory and more advanced courses.

The first ten chapters deal with basic soil information: texture, structure, and porosity; colour, temperature, and aeration; water; organic content; biological organisms and processes; chemistry; fertility; classification; and surveys. The last six chapters consider the components of the forest soil systems as related processes, discussing roots, fire, and water and...