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Introduction

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Abstract

Environmental problems are best addressed in the context of geographic areas defined by natural features rather than by political or administrative boundaries. For example, the state of Colorado in the western United States is neatly and abruptly divided into two areas with dramatically different ecological, climatological, and land-use characteristics: the eastern plains and western mountains (Fig. 1.1). Furthermore, both areas extend beyond Colorado’s borders.

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Notes

  1. 1.

    Terms in bold are defined in the Glossary, p. 153.

  2. 2.

    Great soil group according to the 1938 system of soil classification (U.S. Department of Agriculture 1938). The most nearly equivalent orders of the new soil taxonomy (USDA Soil Survey Staff 1975) are given in parentheses. Described in the Glossary, p. 153.

  3. 3.

    Zones of latitude may be described as follows: from the equator to 30° are low latitudes; from 30° to 60° are the middle latitudes; from 60° to the poles are the high latitudes.

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Bailey, R.G. (2014). Introduction. In: Ecoregions. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-0524-9_1

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