A Realm of Extremes: Geography and Climate of the Mongolian Steppe

The Mongolian Steppe, known locally as the tal, forms one of the largest remaining grassland ecosystems on Earth. Stretching across roughly 1.3 million square kilometers, it extends from the Altai Mountains in the west to the Greater Khingan Range in the east, covering most of Mongolia and spilling into the Inner Mongolia Autonomous Region of China. This is not a uniform plain; the steppe encompasses a mosaic of landscapes: gently rolling hills, vast flat plains, arid basins, and the transitional forest-steppe zone in the north. The elevation varies from around 1,000 to 2,000 meters above sea level, contributing to the region’s famously extreme continental climate.

Winters are brutally cold, with average January temperatures dropping below –20°C in many areas, while summers can see July highs exceeding 30°C. Precipitation, averaging only 200–400 mm annually, is highly variable and concentrated almost entirely in the short summer months. This semi-arid rainfall supports a drought-adapted grassland but prohibits the growth of closed forests except along river valleys and northern mountain slopes. The seasonal rhythm of the steppe dictates all life: a brief, lush burst of green in June and July, followed by a long, brown winter dormancy. Understanding this climatic regime is essential to grasping why Mongolia’s human and natural history has evolved as it has.

Ecological Characteristics: Flora and Fauna of the Dry Grasslands

Plant Life Adapted to Drought and Cold

The vegetation of the Mongolian Steppe is dominated by hardy perennials that can withstand grazing, fire, and temperature extremes. Common species include feather grass (Stipa spp.), fescue (Festuca spp.), needlegrass, and various sedges and forbs. In the more arid southern regions, shrubby vegetation such as Caragana (pea shrub) and sagebrush becomes prevalent. These plants have deep root systems, narrow leaves to reduce water loss, and the ability to enter dormancy during dry spells. The steppe’s plant biomass is relatively low but highly nutritious for grazing ungulates, supporting both wildlife and domestic herds.

Ungulates and Migratory Birds

The most iconic large mammal of the Mongolian Steppe is the Mongolian gazelle (Procapra gutturosa), whose herds numbering up to hundreds of thousands still roam the eastern steppes. The critically endangered saiga antelope (Saiga tatarica) occupies the arid western fringes. Other resident ungulates include the Siberian ibex in rocky areas, the Altai argali (the world’s largest wild sheep), and the reintroduced Przewalski’s horse (Equus ferus przewalskii), the last truly wild horse species, which thrives in protected areas like the Khustain Nuruu National Park. The steppe also hosts predators: the grey wolf, red fox, corsac fox, Pallas’s cat, and the elusive snow leopard in mountainous edges. Over 400 bird species use the steppe annually, including the iconic demoiselle crane, black stork, steppe eagle, and saker falcon. The Eastern Mongolian Steppe is a globally significant breeding ground for migratory waterfowl and shorebirds, earning designation as a UNESCO World Heritage Site candidate. For more on bird conservation, see Wetlands International’s Eastern Steppe program.

Small Mammals and the Ecological Web

Beneath the surface, the steppe is alive. Brandt’s voles, Mongolian gerbils, marmots, and pikas form the base of the food chain. Their burrowing activities aerate the soil and create microhabitats, but in high densities they can compete with livestock for forage. The steppe’s ecological balance is delicate: climate fluctuations, fire, and grazing pressure interact to drive cycles of plant and animal abundance. Understanding these dynamics is crucial for managing the steppe as a working landscape, especially given that climate change is projected to shift precipitation patterns worldwide.

The Human Steppe: Nomadic Cultures and Their Landscape

A Tradition of Mobility

For at least 4,000 years, the Mongolian Steppe has been home to nomadic pastoralists. These communities do not wander aimlessly; they practice systematic, seasonal movements to optimize forage and water availability. The classic pattern involves winter camps in sheltered valleys near water, spring lambing grounds on lower slopes, and summer camps on open upland pastures where the grasses are richest. In autumn, herders move to collect hay and prepare for winter. This mobility prevents overgrazing in any single location, allowing vegetation to recover. It is a sophisticated form of land management honed over millennia, deeply intertwined with Mongolian identity and cosmology.

The Five Snouts: Livestock and Livelihood

Traditional herders raise what they call the “five snouts” or “five jewels”: horses, cattle (including yaks in high areas), camels (Bactrian), sheep, and goats. Each species serves a distinct purpose. Horses are the primary mode of transport and a symbol of status; their milk is fermented into airag (kumis). Cattle and yaks provide meat, milk, and leather. Sheep supply wool and meat for daily consumption. Goats yield the valuable cashmere fiber, which has become a major export. The ratio of these animals is shifting in response to market demand—many herders now keep increasing numbers of goats for cashmere, driving environmental pressures discussed below.

Yurts, Traditions, and Social Organization

The ger (or yurt) is the iconic mobile dwelling that perfectly suits the nomadic lifestyle. Constructed of a collapsible wooden lattice frame and covered with felt from sheep’s wool, a ger can be assembled or disassembled in under an hour. Its circular design resists strong winds, and the felt insulates against both cold and heat. Inside, the layout is highly symbolic: the north side (opposite the door) is the place of honour, and left (men’s) and right (women’s) sides have designated functions. Beyond dwelling, the nomadic culture is expressed in festivals like Naadam, featuring horse racing, wrestling, and archery—skills that originated in warfare and hunting. Throat singing (khoomei), long-song (urtiin duu), and epic tales of heroes like Geser Khan are UNESCO-recognized intangible cultural heritage. Social organization traditionally revolved around clan and khoton (camp groups of 2–5 households) that move together, pooling labour for herding and milking.

Environmental Challenges Facing the Steppe

Overgrazing and Desertification

Following the transition to a market economy in the 1990s, Mongolia’s livestock numbers exploded, from about 20 million head in 1990 to over 70 million today. This has led to widespread overgrazing. In many areas, particularly around the capital Ulaanbaatar and along the Chinese border, the plant cover has been stripped, topsoil erodes, and palatable perennial grasses are replaced by inedible shrubs or bare ground. The result is desertification—the conversion of productive steppe into a degraded landscape that resembles the Gobi Desert. This process is self-reinforcing: less vegetation means less organic matter in the soil, less water infiltration, and a hotter, drier microclimate.

The Cashmere Boom

The global demand for cashmere has driven herders to shift from diverse herds (which include sheep, horses, and camels) to increasing numbers of goats. Goats uproot plants by their roots, especially when grazing on dry, fragile soils. A herd of goats can cause far more damage per animal than sheep or cattle. The cashmere boom has brought short-term economic gains but long-term ecological costs, raising tensions between economic development and conservation. Many researchers and NGOs advocate for sustainable cashmere certification to help reverse the trend.

Climate Change Impacts

The Mongolian Steppe is warming at twice the global average. Higher temperatures increase evapotranspiration, reducing the already scarce soil moisture. Extreme weather events—droughts and dzuds (severe winter storms that follow summer drought)—are becoming more frequent and intense. A dzud can kill up to a quarter of the national herd in a single season, as happened in 2010 and again in 2023. These disasters devastate herder livelihoods, push rural people into the city, and compound the ecological stress from overgrazing. Additionally, permafrost degradation in northern areas releases stored carbon and alters water drainage patterns, further changing the steppe’s hydrology.

Conservation and Sustainable Futures

Protected Areas and Community-Based Management

Mongolia has an extensive network of protected areas covering nearly 20% of its territory, including the Great Gobi Strictly Protected Area, Khustain Nuruu National Park (home to Przewalski’s horses), and the Eastern Mongolian Strictly Protected Area—a vast grassland sanctuary for gazelles and migratory birds. However, enforcement is weak, and many parks lack adequate funding and staffing. A promising approach is community-based natural resource management (CBNRM), where herder groups collectively agree on grazing rotations, set aside seasonal reserves, and monitor rangeland health. Programs supported by UNDP, WWF, and local NGOs have shown that such agreements can improve grass cover and reduce conflict. The Mongolian government’s “Green Development Policy” also aims to mainstream sustainable land use, but implementation remains uneven.

Rangeland Science and Herder Knowledge

Modern rangeland science increasingly recognizes that nomadic herders possess deep ecological knowledge. Herders can read subtle signs of soil moisture, plant condition, and animal behaviour to decide where to move next. Combining this traditional knowledge with satellite-based monitoring and climate models offers a powerful tool for adaptive management. For example, recent studies highlight that flexible, mobile grazing systems that mimic the historical patterns of large wild herds actually enhance steppe biodiversity and resilience—provided that total livestock numbers are kept in balance with the carrying capacity.

Cultural Revitalization as Conservation

An often-overlooked angle is that preserving nomadic culture is itself a conservation strategy. When young people abandon herding for the city, the collective memory of sustainable practices erodes. Efforts to support herder livelihoods—through fair trade wool, cashmere, and meat markets; mobile schools and telemedicine; and festivals that celebrate nomadic identity—help keep people on the land. Organizations like Fauna & Flora International and the IUCN work with Mongolian partners to link cultural pride with conservation outcomes. Ultimately, the fate of the Mongolian Steppe depends on balancing the ancient rhythms of nomadic life with the pressures of a globalized economy and a changing climate. It is a challenge that demands both scientific insight and respect for a way of life that has shaped this landscape for centuries.