Ecoregions of the Conterminous United States
Tóm tắt
Từ khóa
Tài liệu tham khảo
Anderson J. R., 1970, The national atlas of the United States of America, 158
Austin M. E., 1972, Land resource regions and major land resource areas of the United States
Bailey R. G., 1976, Ecoregions of the United States. Map (scale 1:7,500,000)
Baldwin J. L., 1973, Climates of the United States
Fenneman N. M., 1946, Physical divisions of the United States. Map (scale 1:7,000,000)
Gersmehl P. J., 1977, Annals of the Association of American Geographers, 67, 419, 10.1111/j.1467-8306.1977.tb01151.x
Hammond E. H., 1970, The national atlas of the United States of America, 62
Hughes R. M., 1981, Acquisition and utilization of aquatic habitat inventory information, proceedings of a symposium. October 28-30, 1981, 92
Hunt C. B., 1979, Surficial geology
Kuchler A. W., 1970, The national atlas of the United States of America, 89
Linthurst R. A., 1986, Population description and physico-chemical relationships, 1
Omernik J. M., 1977, Nonpoint source - stream nutient level relationships: A nationwide study
Omernik J. M., 1985, Total alkalinity of surface waters: A map of the New England and New York region
Omernik J. M., 1983, Annals of the Association of American Geographers, 73, 133, 10.1111/j.1467-8306.1983.tb01400.x
Omernik J. M., 1982, In-place resource inventories: principles and practices, proceedings of a national workshop, 199
Gerald H. Simonson, 1975 . General soil map of Oregon, Washington, and Idaho. Unpublished map (scale 1:2,500,000). Compiled for the Northwest Regional Commission, Vancouver, Wash.
Trewartha G. T., 1943, An introduction to weather and climate, 2
U.S. Bureau of the Census . 1969 . lCensus of agriculture. Vol. 5 , Special reports. Part 15. Graphic summary. Washington, D.C.: U.S. Government Printing Office.
U.S. Bureau of the Census . 1974 . Census of agriculture. Vol. 4 , Special reports. Part 1. Graphic summary. Washington, D.C.: U.S. Government Printing Office.
U.S. Bureau of the Census . 1978 . Census of agriculture. Vol. 5 , Special reports. Part 1. Graphic summary. Washington, D.C.: U.S. Government Printing Office.
U.S. Department of Agriculture, Agriculture Experiment Station . 1957 . Map (scale 1:2,500,000). InSoils of the north central region of the United States. North Central Regional Publication No. 76, Bulletin 544. Madison, Wis.
U.S. Department of Agriculture, Agriculture Experiment Stations of the Southern States and Puerto Rico Land-Grant Universities and U.S. Department of Agriculture, Soil Conservation Service . 1973 . Map (scale 1:5,000,000). InSoils of the southern states and Puerto Rico. Southern Cooperative Series Bulletin No. 174. Fort Worth, Texas.
1964, Soils of the western United States (exclusive of Hawaii and Alaska)
U.S. Department of Agriculture, Soil Conservation Service . 1937 . Important soil regions and plant growth regions of the United States . Map (scale 1:8,000,000). InNative woody plants of the United States (the erosion and wildlife value). U.S. Department of Agriculture Miscellaneous Publication No. 303. Washington, D.C.
U.S. Department of Agriculture, Soil Conservation Service, 1970, The national atlas of the United States of America, 86
U.S. Department of Agriculture, Soil Conservation Service, 1981, Land resource regions and major land resource areas of the United States
U.S. Department of Agriculture, Soil Conservation Service and Agriculture Experiment Stations of the Northeastern United States . 1984 . General soil map of the northeastern United States. Map (scale 1:2,500,000). Forth Worth, Texas.
U.S. Geological Survey, 1982, Hydrologic unit map of the United States. Map (scale 1:5,000,000)
Warren C. E., 1979, Toward classification and rationale for watershed management and stream protection