TheImprovement ofTropical and Subtropical Rangelands

286 IMPROVEMENT OF TROPICAL AND SUBTROPICAL RANGELANDS
number of poasible routes and it thus has a very definite and clear
linear, constricted pattern on the map. This strong linear pattern,
coupled with a marked seasonal oecillation between summer and
winter pastures, characterizes all groups of mountain nomads.
NOTES
1. See Thomu R. Stauffer, "'The Economica of Nomadilm in Iran,·
Middl. EIUt Jourrtlll XIX:28.-302 (1965). Fredrik Barth, -Nomadilm in the
Mountain and Plateau Areu ofSouth Weat Alia,· in n.Pro61em. o/the Arid Zone
(Paril: UNESCO, 1962), pp. 3.1-355, 10110 arguea that the nomad iI often the
beat pOllible exploiter of areu that are too marginal for acricultural11l8, unleu
sovernmenu are ready to inveat capital expenditu~ IfOIIly dilproportionate
to the pOllible returDI.
2. The beat pneral account of the phyaical characteriltica of the area
iI found in Theodore Oberlander, n. Z.". SbwtaIIu: A N.. Irrtuprdalion 01
7hIruvc,.. Dratinta,. in an Oro,mic Zone (SYr&C11I8 Geolraphical Seriea No.1;
Syr&C11I8: SyracuM Univeni,>, Prell, 1965).
A1Io worthy of mention are the travel-orieDted writlnp of: C. J. Edmonda,
-Luriltan: Pilh-i·kuh and Ballo Gariveh,· G....ltietJI JourrtIIl LIX:335­
356 and .37..53 (1922); J. V. Harmon, -The Bakhtiari Country, Southweatern
Penia,· G~ca1 JourrtIIl LXXX:193-210 (1~2); F. R. Maunaell, "'The
Land of Elam,· GCOfI'Gl'ltical Jourrtlll LXV:.32·.37 (1925); and H. A. Sawyer,
"'The Bakhtiari Mountaina and Upper Elam,· Geolraphical Journal 1V:"81·606
(189