Vegetation Classification and Mapping Project Report - USGS

Vegetation Classification and Distribution Mapping Report: Petrified Forest National Park
Nachlinger, J. L., and G. A. Reese. 1996. Plant community classification of the Spring Mountains
National Recreation Area, Clark and Nye counties, Nevada. Unpublished report submitted
to USDA Forest Service, Humboldt Toiyabe National Forest, Spring Mountains National
Recreation Area, Las Vegas, NV. The Nature Conservancy, Northern Nevada Offce, Reno, NV.
85 pp. plus figures and appendices.
ORNHP [Oregon Natural Heritage Program]. No date. Unpublished data files. Oregon Natural Heritage
Program, The Nature Conservancy, Portland, OR.
Ortenberger, A. I., and R. D. Bird. 1933. The ecology of the western Oklahoma salt plains. Publications
of the University of Oklahoma Biological Survey 5:49 64.
Padgett, W. G. 1981. Ecology of riparian plant communities in southern Malheur National Forest. M.S.
thesis. Oregon State University, Corvallis. 143 pp.
Padgett, W. G., A. P. Youngblood, and A. H. Winward. 1988b. Riparian community type classification
of Utah. USDA Forest Service, Intermountain Region Publication R4 ECOL 88 01. Ogden, UT.
Padgett, W. G., A. P. Youngblood, and A. H. Winward. 1989. Riparian community type classification of
Utah and southeastern Idaho. USDA Forest Service, Intermountain Region. Report R4 ECOL 89
01. Ogden, UT. 191 pp.
Paysen, T. E., J. A. Derby, H. Blake, Jr., V. C. Bleich, and J. W. Mincks. 1980. A vegetation classification
system applied to southern California. USDA Forest Service General Technical Report PSW 45.
USDA Forest Service, Pacific Southwest Research Station, Berkeley, CA.
Pieper, R. D. 1968. Comparison of vegetation on grazed and ungrazed pinyon juniper grassland sites in
south central New Mexico. Journal of Range Management 21:51 53.
Powell, D. C. 1988a. Aspen community types of the Pike and San Isabel national forests in south central
Colorado. USDA Forest Service, Rocky Mountain Region, Report R2 ECOL 88 01. 254 pp.
Rogers, C. M. 1953. The vegetation of the Mesa de Maya region of Colorado, New Mexico, and Oklahoma.
Lloydia 16(4):257 290.
Sawyer, J. O., and T. Keeler Wolf. 1995. A manual of California vegetation. California Native Plant Society,
Sacramento. 471 pp.
Shaw, R. B., S. L. Anderson, K. A. Schultz, and V. E. Diersing. 1989. Plant communities, ecological
checklist, and species list for the U.S. Army Pinon Canyon Maneuver Site, Colorado. Colorado
State University, Department of Range Science, Science Series No. 37, Fort Collins. 71 pp.
Shute, D., and N. E. West. 1978. The application of ECOSYM vegetation classifications to rangelands
near Price, Utah. Appendix reports 14 and 16 in: J. A. Henderson, L. S. Davis, and E. M. Ryberg,
editors. ECOSYM: A classification and information system for wildland resource management.
Utah State University, Logan. 53 pp.
Sims, P. L., B. E. Dahl, and A. H. Denham. 1976. Vegetation and livestock response at three grazing
intensities on sandhill rangeland in eastern Colorado. Colorado Agricultural Experiment Station.
Technical Bulletin 130. 48 pp.
Smith, T. L. 1989. An overview of old growth forests in Pennsylvania. Natural Areas Journal 9:40 44.
Soil Conservation Service. 1978. Range site descriptions for Colorado. Technical Guide, Section II E.
USDA Soil Conservation Service, Colorado State Offce, Denver.
Stevens, R. L., and C. W. Shannon. 1917. Plant life in Oklahoma. In: C. W. Shannon, editor. Animal and
plant life of Oklahoma. Oklahoma Geological Survey, Norman.
Steward, L. H. 1982. Desert grassland communities on Otero Mesa, Otero County, New Mexico. Unpublished
thesis, New Mexico State University, Las Cruces.
Stubbendieck, J., S. L. Hatch, and C. H. Butterfield. 1992. North American range plants, 4th ed. University
of Nebraska Press, Lincoln. 493 pp.
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