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Adjunct
Associate Research Professor of Anthropology University of Pittsburgh Office phone: (412) 665-2606 |
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Nomadic Pastoralists, their Livestock, and their Landscape
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Herding is central to the economy of Mongolia. Livestock keeping provides food, transportation for humans and goods, clothing, items of exchange for the marketplace, and fuel for cooking and heating. Approximately 100,000 families care for their herds on Mongolia's 300 million acres of pastureland. The geography and climate of a particular region determine which combination of animals is raised there. Geography Geography and ecology are important factors that impact the density of livestock and the species selected to graze in a particular area. Ecological factors that influence the utilization of land by herders include: climate, distribution of forage plants, distribution of saline soil, and water supply. Mongolia has five ecological regions:
Each region
is defined by rainfall, dominant vegetation type, and topography. Dominant
forage plants for livestock include species of Orostachys, Cobresia,
Koeleria, Artemesia (wormwood), Poa (grasses), Agropyron
(steppe wheat grasses), Cyperacea (sedges) and Festuca
spp (fescue grass). Saline soils help provide the necessary dietary salt for the animals. Camels thrive in the most saline areas and they do best when their food includes the halophytic plants that grow there (Fig. 13). Elevation is very important in terms of the placement of seasonal camps. The best spring pasturage is typically on the south face of a mountain between middle altitude and the foothills. Access to water is most important in the summer (Fig. 14), but biting insects, like mosquitoes, midges, and horseflies, tend to hover near water sources, so summer pasturage tends to be on high ground adjacent to rivers and lakes. For this reason, herders spend much of the summer near the mountain crests where there is fresh pasture and wind to reduce the problems with insects. However, in the Khangai and Khentii Mountains, the deep lying areas and foothills are preferred for summer camps. Despite its low annual precipitation, the country is blessed with high levels of surface (lakes and streams) and ground (springs) water. Because of the short summers and severe winters, some rivers remain frozen until June. Rivers and lakes can serve as useful boundaries, especially in the geographically uniform steppe region. The Orkhon is the longest river in Mongolia. Winter camps (Fig. 15) are usually between the higher and middle mountain ranges, on a southern slope or in a cleft away from the prevailing winds. Areas where there is water tend to be colder, so winter camps are situated away from these sources. Climate Climate is a critical factor for nomadic pastoralists. Even though the country averages 260 days a year of sunshine, the climate of Mongolia can be quite severe at times. Summer all over Mongolia ranges from hot to moderately warm, but the subarctic winters are universally extremely cold, with average temperatures dropping to -34°C (-88°F) in January and early February. There is an altitudinal, as well as a latitudinal gradient for temperature. Mongolia is known for its dramatic annual, seasonal, and diurnal temperature fluctuations. Precipitation is relatively low (averaging 230 mm per year) and all but 10% of that evaporates. Exposure to wind is critical in determining where seasonal camps will be built. Wind chill can be very detrimental to herds and can lead to serious frostbite in humans. However, in the summer, wind is beneficial in keeping the biting insects from plaguing the herds. Nomadic pastoralism is almost totally dependent on natural pasture, so the economy is highly sensitive to climatic fluctuations. Periodic climatic events or shifts can result in dramatic losses in productivity. Droughts, ice storms, and even global warming can have a tremendous impact on the herds and therefore the human population. Migration Up until the
past century, the normal response to climatic stress would have been
long-distance migration to better grazing lands, sometimes by thousands
of people at a time. Chinese chronicles between 470 BC and AD1790 show
a strong correlation between dust storms or winter thunderstorms and
the immigration of Mongolians into China. In Mongolia, there are fewer
detailed records, but three serious droughts, each lasting years, were
reported around 1740, 1800, and 1850. Prehistory
(Capra ibex) (Fig. 16), the domestic herds of Mongolia did not develop from these wild species. Instead, they came in with migrating peoples, probably from Russia and Kazakhstan to the west or from China to the south. The yak was probably first domesticated on the Tibetan Plateau, where its wild ancestors can still be found. Although it is possible that camels and reindeer were first domesticated in Mongolia, since their wild progenitors did live there, archaeologists have yet to determine the precise localities where these animals were initially brought under human control. |
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Nomadic Pastoralists, their Livestock, and their Landscape
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