Sonoran Basin and Range Ecoregion: Chapter 30 in <i>Status and trends of land change in the Western United States--1973 to 2000</i>

Calzia, James P.; Wilson, Tamara S.

Abstract:

The Sonoran Basin and Range Ecoregion covers approximately 116,364 km² (44,928 mi²) of desert landscape in southeastern California and southwestern Arizona (fig. 1) (Omernik, 1987; U.S. Environmental Protection Agency, 1997). This ecoregion is bounded on the west by the Southern and Central California Chaparral and Oak Woodlands and the Southern California Mountains Ecoregions; on the north by the Mojave Basin and Range, the Arizona/New Mexico Plateaus, and the Arizona/New Mexico Mountains Ecoregions; and on the east by the Madrean Archipelago Ecoregion (fig.1). The Sonoran Basin and Range Ecoregion extends far southward into both mainland Mexico and northeastern Baja California peninsula; however, those international parts were not included in the present study. The largest concentrations of population in the ecoregion include the Palm Springs–Coachella Valley area (population 332,485 in 2000) in California’s Riverside County, as well as the Phoenix and Tucson metropolitan areas (metropolitan populations of approximately 4.2 million and 1 million, respectively) in Arizona (U.S. Census Bureau, 2011).

Genre:

USGS Numbered Series

ProdID:

70042659

Citation Author:

Calzia, James P.; Wilson, Tamara S.

Citation Contributing Office:

Western Geographic Science Center

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Citation End Page:

310

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Citation Language:

English

Citation Larger Work Title:

Status and trends of land change in the Western United States--1973 to 2000: Volume A in Status and trends of land change in the United States--1973 to 2000 (PP 1794-A)

Citation LatN:

35.1

Citation LatS:

31.0

Citation LonE:

-110.0

Citation LonW:

-117.0

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Citation Phsyical Description:

Chapter 30: 8 p.

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Citation Public Comments:

This publication is Chapter 30 in Status and trends of land change in the Western United States--1973 to 2000, which is Volume A in Status and trends of land change in the United States--1973 to 2000, PP 1794. Volume A consists of 30 chapters. For access to other chapters, please visit PP 1794-A.

Citation Publisher:

U.S. Geological Survey

Citation Series:

Professional Paper

Citation Series Code:

Citation Series Number:

1794-A-30

Citation Search Results Text:

Sonoran Basin and Range Ecoregion: Chapter 30 in Status and trends of land change in the Western United States--1973 to 2000; 2012; PP; 1794-A-30; Status and trends of land change in the Western United States--1973 to 2000: Volume A in Status and trends of land change in the United States--1973 to 2000 (PP 1794-A); Calzia, James P.; Wilson, Tamara S.