References
Bailey, R.W. 1941. Climate and settlement of the arid
region. In: 1941 Yearbook of agriculture. Washington,
DC: U.S. Department of Agriculture: 188–196.
Peet RK (1978) Latitudinal variation in southern Rocky
Mountain forests. J Biogeography 5:275–289
Thorp J (1931) The effects of vegetation and climate upon
soil profiles in northern and northeastern Wyoming.
Soil Science 32:283–302
Troll C (ed) (1968) Geo-ecology of the mountainous regions
of the tropical Americas. Ferd. Dummlers, Bonn, 223 pp
Troll C (ed) (1972) Geoecology of the high mountains of
Eurasia. Franz Steiner, Wiesbaden, 299 pp
Troll, C. 1973. High mountain belts between the polar
caps and the equator: their definition and lower limit.
Arctic Alpine Res. 5(3) pt. 2: A19-A27.
Von Humboldt A (1817) De distributione geographica
plantarum. Lutetiae Parisiorum, in Libraria GraecoLatino-Germanica, Paris
Walter, H.; Harnickell, E.; Mueller-Dombois, D. 1975.
Climate-diagram maps of the individual continents
and the ecological climatic regions of the earth.
Berlin: Springer, 36 pp with 9 maps.
Fig 9.8 Gradation of soils
from a dry steppe-climate
basin (left) to a cool, humid
climate (right) ascending
the west slopes of the Big
Horn Mountains,
Wyoming. (Note that the
soil profile is an extreme
exaggeration for purpose of
illustration.) From Thorp
(1931)
94
9 The Mountain Ecoregions
Bailey, R.W. 1941. Climate and settlement of the arid
region. In: 1941 Yearbook of agriculture. Washington,
DC: U.S. Department of Agriculture: 188–196.
Peet RK (1978) Latitudinal variation in southern Rocky
Mountain forests. J Biogeography 5:275–289
Thorp J (1931) The effects of vegetation and climate upon
soil profiles in northern and northeastern Wyoming.
Soil Science 32:283–302
Troll C (ed) (1968) Geo-ecology of the mountainous regions
of the tropical Americas. Ferd. Dummlers, Bonn, 223 pp
Troll C (ed) (1972) Geoecology of the high mountains of
Eurasia. Franz Steiner, Wiesbaden, 299 pp
Troll, C. 1973. High mountain belts between the polar
caps and the equator: their definition and lower limit.
Arctic Alpine Res. 5(3) pt. 2: A19-A27.
Von Humboldt A (1817) De distributione geographica
plantarum. Lutetiae Parisiorum, in Libraria GraecoLatino-Germanica, Paris
Walter, H.; Harnickell, E.; Mueller-Dombois, D. 1975.
Climate-diagram maps of the individual continents
and the ecological climatic regions of the earth.
Berlin: Springer, 36 pp with 9 maps.
Fig 9.8 Gradation of soils
from a dry steppe-climate
basin (left) to a cool, humid
climate (right) ascending
the west slopes of the Big
Horn Mountains,
Wyoming. (Note that the
soil profile is an extreme
exaggeration for purpose of
illustration.) From Thorp
(1931)
94
9 The Mountain Ecoregions